Question: Data was gathered for 200 elementary students that recorded whether the student is a male or a female and whether the student was assigned to a ‘special needs’ priority based on independent observations of the student’s classroom behaviors.

SPSS was used to analyze the data. A hypothesis test to determine whether males and females are equally likely to be assigned a special needs priority rating was tested. The output appears below:

1. (1 point) State the null and alternative hypotheses.

b) (1 point) Comment on the reasonableness of the assumptions required for the

statistical test.

c) (4 points) Write a short substantive interpretation of the results of the test.

d) (1 point) Interpret what Cramer’s Phi indicates for this particular analysis.

e) (2 points) Calculate and interpret the odds ratio for this table.

Can a pretest on mathematics skills predict success in a statistics course? The 102 students in an introductory statistics class took a pretest at the beginning of the semester. The least-square regression line for predicting the score y on the final exam from the pretest score x was \[\hat{y}=10.5+0.73x\] . The standard error of the slope \[{{b}_{1}}\] estimated from the sample was 0.42.

Test the null hypothesis that there is no linear relationship between the pretest score and the score on the final exam (or that the slope of the regression line is zero in the population). Be sure to specify your null and alternative hypotheses and use an alpha of 0.05

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document