Entries by Grace Wahito

Nursing majors Non-nursing

 Nursing majors      Non-nursing majors   totalmales-96                    1017                              1113 females-700               1728                              2428 A. […]

 

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37% of college students say they use credit cards because of the rewards program.

37% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use credit cards because of the rewards program is (a) […]

 

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Use technology to help you test the claim about the population mean U

Use technology  to help you test the claim about the population mean U, at a given level of significance , a using the given sample sample statistics.  Assume the population is normally distributed  Claim u > 1290;  a=0.04; o=200.87; sample statistics : x = 1315.64, n=250 The standardized test statistic is Determine the p-value. p= […]

 

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In a random sample of fourmicrowave ovens, the mean repair cost was $85.00and

In a random sample of fourmicrowave ovens, the mean repair cost was $85.00and the standard deviation was $12.00. Assume the population is normally distributed and use at-distribution to construct a 95% confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret The 95% confidence interval for the population mean muμ ? The […]

 

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