Statistics Solutions

(See Solution) The president of the Watson Land Surveying Company states that the average hourly wa ge of his summer assistants is $ 8.65. A sample of SO

Question: (55 pts). The president of the Watson Land Surveying Company states that the average hourly wa ge of his summer assistants is $ 8.65. A sample of SO assistants has the distribution shown below. At a = 0.05, is the president's statement believable? Data; (HINT: Use the midpoint of the interval for x)

Class Frequency x X squared xf X squared f
8.35-8.43 2
8.44-8.52 6
8.53-8.61 12
8.62-8.70 18
8.71-8.79 10
8.80-8.88 2
total

Calculate the sample mean.

Calculate the sample standard deviation.

State the hypotheses and identify the claim. H 0

What is(are) the critical values?

What is the test statistic?

What is the P-value?

What is your decision and why?

What is the conclusion?

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Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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