You receive a brochure from a large university. The brochure indicates that the mean class size for
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You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 32 students. You want to test this claim. You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown in the table. At α = 0.05, can you support the university’s claim?
(a) Identify the claim and state H0 and Ha,
(b) Use technology to find the P-value,
(c) Decide whether to reject or fail to reject the null hypothesis,
(d) Interpret the decision in the context of the original claim. Assume the population is normally distributed.
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a The claim is the mean class size for fulltime faculty is fewer than 32 s...View the full answer
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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