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STATISTICS | Answer the following: An MS Word file uploaded to a google drive lin'k would me much appreciated. Marketing companies have collected data implying

STATISTICS | Answer the following: An MS Word file uploaded to a google drive lin'k would me much appreciated.

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Marketing companies have collected data implying that teenage girls use more ring tones on their cellular phones than teenage boys do. In one particular study of 70 randomly chosen teenage girls and boys (35 of each) with cellular phones, the mean number of ring tones for the girls was 3.2 with a standard deviation of 1.5. The mean for the boys was 1.7 with a standard deviation of 0.8. Conduct a hypothesis test at 1% significance level to determine if the means are the same.Researchers conducted a study at 10% significance level, to find out if there is a difference in the use of eReaders by different age groups. Randomly selected participants were divided into two age groups. In the 16 to 29 year-old group, 7% of the 628 surveyed use eReaders, while 11% of the 2,309 participants 30 years old and older use eReaders .One of the questions in a study of marital satisfaction of dual-career couples was to rate the statement "I'm pleased with the way we divide the responsibilities for childcare." The ratings went from one (strongly agree) to five (strongly disagree). Table contains ten of the paired responses for husbands and wives. Conduct a hypothesis test to see if the mean difference in the husband's versus the wife's satisfaction level is negative (meaning that, within the partnership, the husband is happier than the wife). (Use a = 0.05) Wife's Score 2 2 3 3 4 2 1 2 4 Husband's Score 2 2 1 3 2 1 1 2 4

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