See our list of Statistics solutions available
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[Solved] South Florida saw one of the steepest declines in housing prices in the wake of the 2007 #29048
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[Solved] What do reliable and validity mean? #29058
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[Solved] From experience, the owner of an ice-cream shop has found that 60% of all sales of ice-cream cone ar #29060
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(See Solution) For a goodness-of-fit test based on the ?2 distribution for the previous problem, what are the expec #29061
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[Solved] For a goodness-of-fit test based on the ?2 distribution for the previous problem, what is the correc #29062
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(See Solution) A fast-talking salesman offers you a “random digits” smartphone app that comes with a “guarantee” of #29063
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Solution: For the study preceding, test the null hypothesis that gender and personal goal are independent. Sho #29065
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[Solved] In a study of the responsiveness of small businesses in different locations, questionnaires were sen #29066
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[Solved] In a multiple regression with five explanatory variables, data are collected on 63 observations. Wha #29067
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[Solved] In a multiple regression with two explanatory variables, the total sum of squares SST = 1000 and the #29068
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[Solved] A researcher is investigating possible explanations for deaths in traffic accidents. He examined dat #29070
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[Solved] Data were obtained in a study of the oxygen uptake of 31 middle-aged-males and females while exercis #29071
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[Solved] In this experiment, the risk-taking propensity of 90 inner city drug users was measured using a repe #29072
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[Solution] A realtor wishes to assess whether a difference exists between home prices in three subdivisions. In #29073
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(Solved) An Evil Genius is trying to develop an army of flying monkeys. Don’t ask why. She would like the Mon #29074
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[Solved] The standard deviation of wingspan should be less than .25’. The sample of size 40 Type A monkeys ha #29075
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Solution: Of the 40 Type A monkeys 35 had green hair. The Evil Genius would like at least 75% of her monkeys t #29076
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(Solved) The Evil Genius tries another variety, Type B. A sample of size 40 had an average wingspan of 8.2’ w #29077
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Solution: of the type B monkeys had green hair. Does this give good evidence that a difference exists betwe #29078
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(See Solution) A sample of size 40 of Type B monkeys had a sample mean of 230 lbs. It is known that the standard de #29079
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(Solved) The sample standard deviation of Type A weights was 40 lbs. and Type B was 32 lbs. Does this give go #29081
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(Solved) The Evil Genius is just not happy with Type A and Type B so she develops a Type C variety of Monkey. #29082
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[Solved] She is also concerned with the number of visual defects in the monkeys. She really wants them to loo #29083
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(See Solution) The Genius is leaning towards using Type C monkeys in her army. She has two different styles of unif #29084
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(Solved) The Evil Genius also wants the monkeys to be loyal to her. His is data from a survey that she had ta #29085
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[Solved] Use this multiple regression output to answer the given questions. SUMMARY OUTPUT #29086
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[Solution] Use this Chi-Square output for two-way tables to answer the following questions. Ho: No dependency b #29087
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[Solved] Use this one-way ANOVA output to answer the following questions. Analysis of Variance results: Data #29088
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[Solved] Which measure of Center, mean or median, is most influenced by outliers? #29089
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Solution: Which measure of spread, standard deviation or IQR, is most influenced by outliers? #29090
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[Solved] In general is it best for a product to have a low or high standard deviation? #29092
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Solution: What percent of the population lies below Q3? #29093
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(Solved) Company A produces a product a product with mean 700 lbs and standard deviation of 23lbs. Company B #29094
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Solution: Tell me what is statistically wrong with all of these statements. 310 of my Facebook friends agree #29096
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[Solved] Tell me what is statistically wrong with all of these statements. The probability that it keeps snow #29097
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[Solved] Tell me what is statistically wrong with all of these statements. I failed to reject the null in a h #29098
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(Solved) Tell me what is statistically wrong with all of these statements. The standard deviation for a data #29099
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Solution: Tell me what is statistically wrong with all of these statements. The average for a data set is real #29100
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[Solved] Tell me what is statistically wrong with all of these statements. The correlation for a set of data #29101
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[Solved] How many different surveys are required to cover all possible arrangements if there are 5 questions #29102
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(Solved) Tell me what is statistically wrong with all of these statements. The correlation for a data set is #29103
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(See Solution) The Z score is a standard score. a. What is the Z score for the mean? b. Why are Z scores most often #29104
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[Solution] Your offspring came home with a 105 on a mathematics test that had a national mean of 105 and a 55 o #29105
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(See Solution) Assuming the IQ of football players are symmetrically distributed with a μ = 100 and a σ #29106
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[Solved] Find the Z scores for each of the measurements in the sample data shown below: 64 44 34 54 24 74 84 #29107
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(See Solution) Compute the percentage of the normal curve located at or above each of the following z values. a. 1. #29108
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[Solution] For each of the values (a thru f) in Problem 5 calculate the percentage of the normal curve located #29109
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(See Solution) Compute the area of the normal curve located between the following z values. a. - 1.00 and -0.50 b. #29110
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Solution: The mean cholesterol level of a large population of men in the 50 to 60 year age group is 190 mg per #29111
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Solution: You are in charge of reducing the water consumption in a dormitory at OU and, thus, have been charge #29112
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[Solution] The mean salary of the teachers at Norman High School is $50,000 with a standard deviation of $3,000 #29116
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(See Solution) Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. a. If #29117
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(Solved) Engineers must consider the breadths of male heads when designing motorcycle helmets. Mean have head #29118
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Solution: A researcher is evaluating the effectiveness of a speed-reading course. A standardized test measurin #29129
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[Solved] A repeated measures experiment comparing two treatments can be evaluated with either a t-statistic o #29130
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(Solved) An habituation task is often used to test the memory for infants. In the habituation procedure, a st #29131
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Solution: To demonstrate the practical uses of basic learning principles, a psychologist with an interest in b #29132
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Solution: What are the most common reasons you would select a non-parametric test over the parametric alternat #29157
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Solution: Discuss the issue of statistical power in non-parametric tests (as compared to their parametric coun #29268
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Solution: Based on your answers to Question 21 which of the four results in Question 21 would be considered un #29269
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[Solution] What is the difference between a simple random sample and a stratified sample? #29280
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[Solved] Look at each of these Factor Loadings (From the Health Behavior Study) A. Which of the represents t #29291
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[Solution] Correlation (from NYS data set) A. Which Correlations are NOT significant? B. Which Correlations A #29302
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[Solved] Regression (from the NYS data set) A. Is the model significant? What indicates this, what is the va #29313
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[Solved] (12 marks). Thirty teeth were randomly allocated into three groups of 10 and a cavity in each tooth #29324
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[Solved] The mean length of time required for a random sample of 100 students to earn a bachelor's degree at #29334
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(Solved) The mean weight of 25 randomly selected newborn babies at a local hospital was found to be 7.30 lbs. #29336
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[Solution] A simple random sample of size n is drawn from a population with mean X̄ = 45 and standard devia #29337
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[Solution] An editor wants to estimate average the number of pages in bestselling novels, so that his estimate #29338
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[Solution] The average retail price bananas in 1994 was 47 cents per pounds. Recently, a random sample of 25 ma #29339
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[Solution] A researcher claims that the average wind speed in a certain city is 9 miles per hour. In a random s #29340
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Solution: A survey of 175 gun owners was taken, and 44.3% of them said they "have a gun for protection for sel #29341
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[Solved] A survey of 200 ninth-graders found that 31.5% had used cigarettes in the past week, and a survey of #29342
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Solution: A sample of 85 male professors at a major four-year university produced a mean annual pay of $75,600 #29343
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(Solved) The results from a two-factor experiment can be presented in a matrix with the levels of one factor #29344
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(See Solution) The following table summarizes the results of a two-factor ANOVA evaluating an independent-measures #29345
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[Solved] (5 marks). A study considered the effect of diet control over caries development in children. Of 30 #29346
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[Solution] The following data were obtained from a two-factor independent-measures experiment. (15 points) a. #29347
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[Solved] A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n = 15 colleg #29348
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[Solution] We are examining the results of a study of eye-witness testimony. The investigators wish to know whe #29349
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[Solution] Students often complain that having final exams at scheduled times that are different from regular c #29350
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[Solved] An experiment was conducted to study the effect of punishment on the behavior of sociopaths. Twelve #29351
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[Solved] Ten students who initially scored low on the verbal portion of the SAT and 10 who initially scored h #29352
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[Solution] a) The following have been prepared so that data sets B through D are slightly modified versions of #29353
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(See Solution) Enter the following data into SPSS. Determine the correlation between hours of studying and grade po #29354
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Solution: Compute the mean, median mode, standard deviation, variance, and range for the following data. Provi #29355
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(Solved) Enter the following data into SPSS. Determine the correlation between hours of studying and grade po #29356
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[Solved] (3 marks). A study identified 47 patients in need of two fillings. Subjects were then treated with o #29357
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[Solved] For this exercise you will be using the data contained in the following file (you can find it under #29358
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[Solution] Researchers are interested in whether depressed people undergoing group therapy will perform a diffe #29359
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(Solved) The scores on a job satisfaction inventory for both groups are listed in the table below. Use the fi #29360
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[Solution] Master nursing student collected BMI from 100 patients. Histogram of the data indicated that the dis #29362
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(Solved) Using the graph of empirical distribution function of BMI of sample participants, please determine i #29363
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[Solution] (8 marks). The data file data2_Q5.sav contains information on the percentage of people who brush the #29368
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Solution: A researcher collected data on systolic blood pressure (SBP) from a sample of hypertensive patients. #29369
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[Solved] For each of the following parametric tests, identify the appropriate non-parametric counterpart: a. #29379
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[Solution] (9 marks). A study discussed the relationship between cigarette smoking and the mortality index for #29380
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[Solved] What are degrees of freedom? How are the calculated? #29386
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(See Solution) What do inferential statistics allow you to infer? #29387
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(Solved) What is the General Linear Model (GLM)? Why does it matter? #29388
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(See Solution) Compare and contrast parametric and nonparametric statistics. Why and in what types of cases would y #29389
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Solution: Why is it important to pay attention to the assumptions of the statistical test? What are your optio #29390
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