(a)
A study of 4-year college graduates showed that the average
graduate had 132 credit hours. The...
90.2K
Verified Solution
Link Copied!
Question
Statistics
(a)
A study of 4-year college graduates showed that the averagegraduate had 132 credit hours. The following 6 samples of credithours were recorded from Maryland college's students concerningtheir credit hours upon graduation:
                                      137,135, 151, 122, 131, 141
i.
Calculate the sample mean and sample standard deviation.
ii.
Construct a 95% confidence interval for the population meannumber of credit hours for 4-year graduates                                                                                                       Â
iii.
Is there significant evidence to suggest that the average numberof credit hours for 4-year graduates is different from 132 credithours? Test at the 1% significance level.
Answer & Explanation
Solved by verified expert
3.7 Ratings (508 Votes)
See Answer
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
