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Do Homework Ibrahim Adeyemi Secure https://www.mathxl.com/Student/PlayerHomework.aspx?homeworkld 425564299&questionld; 1&flushed; true&cld; 4366016&centenwi; 2017SP MATH 2342 83470 5/4/ Homework: Section 9.4 Homework 9 of 11 (6 complete) HW Score: 24.24%, 2.67 of 11 pts Score: 0 of 1 pt Question Help 9.4.23-T Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.10 to test for a difference between the number of words spoken in a day by each member of 30 different couples, Click the icon to view the data. In this example wd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of words spoken by a male minus the number of words spoken by a female in a couple what are the null and alternative hypotheses for the hypothesis test? H1: d

Explanation / Answer

Paired T-Test and CI: Male, Female

Paired T for Male - Female

N Mean StDev SE Mean
Male 30 9993 3938 719
Female 30 8082 4747 867
Difference 30 1911 3305 603

90% CI for mean difference: (886, 2937)
T-Test of mean difference = 0 (vs 0): T-Value = 3.17 P-Value = 0.004

P-value <0.1 we reject null hypothesis.

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