Question
In: Statistics and Probability
From a random sample of 77 students in an introductory finance class that uses group-learning techniques,...
From a random sample of
77
students in an introductory finance class that uses group-learning techniques, the mean examination score was found to be
76.3476.34
and the sample standard deviation was
2.32.3.
For an independent random sample of
88
students in another introductory finance class that does not use group-learning techniques, the sample mean and standard deviation of exam scores were
70.7270.72
and
8.88.8,
respectively. Estimate with
9090%
confidence the difference between the two population mean scores; do not assume equal population variances.
Solutions
PL??
orchestra answered 2 years agoRelated Solutions
From a random sample of 77 students in an introductory finance class that uses group-learning techniques,...
From a random sample of 77 students in an introductory finance
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was 2.52.5. For an independent random sample of 88 students in
another introductory finance class that does not use
group-learning techniques, the sample mean and standard deviation
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confidence interval for the population mean
muμ.
left parenthesis nothing comma nothing right
parenthesis3.113.11,8.898.89
(Round to two decimal places as needed.)b. Assume that sample
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x overbarx
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