rework #11: Question Soup Graded Assignment | Back to Assignment Due Sunday 02.2

Question

rework #11: Question Soup Graded Assignment | Back to Assignment Due Sunday 02.25.18 at 11:45 PM Attempts:00 Keep the Highest: 0/1 8. Inference review, problem 8 Aa Aa Random samples of 60 young adult women were taken in the United States and in England. Each woman was asked how many minutes of sports she watched daily. If you wanted to test whether the dispersion in minutes watched is different between both countries, and assuming you have only the information provided in this question, what type of test would you use? O An F-test for difference in means An independent samples t-test for difference in means (equal variances) O A z-test for the mean O An F-test for difference in variances O A z-test for the difference in means O A paired sample t-test for difference in means O A z-test for population proportion O An independent samples t-test for difference in means (unequal varlances) O At-test for the mean O A chi-squared test for variance O A z-test for difference in proportions Save&Continue; WIN 28,0,0,16 2004 201s Aphe All ights reserved Grade It Now 3341 All rights reserve

Explanation / Answer

Sol:

We are comapring the average dispersion in minutes of both countries.

Either use t test or Z test

since population standard deviations is not given u cannot use z test.

Perf orm t test for difference in means.

Since we do not know whether variances are equal or not

perform T test for difference in means assuming unequal variances

OPTION

AN INDEPENDENT SAMPLES T TEST FOR DIFFERENCE IN MEANS(UNEQUAL VARIANCES)

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