n a study of MP3 player popularity, 20% of people in a random sample of 1100 Americans age 12 and older indicated that they owned an MP3 player. The owners were 24% of the males and 16% of the females. Suppose that there were the same number of males and females in the sample of 1100. (Use a statistical computer package to calculate the P-value. Use pmales − pfemales. Round your test statistic to two decimal places and your P-value to four decimal places.) z = P = Do these data provide convincing evidence that the proportion of females that owned an MP3 player is smaller than the corresponding proportion of males? Carry out a test using a significance level of 0.01. YesNo
In a study of MP3 player popularity, 20% of people in a random sample of 1100 Americans age 12 and older indicated that they owned an MP3 player. The owners were 24% of the males and 16% of the females. Suppose that there were the same number of males and females in the sample of 1100. (Use a statistical computer package to calculate the P-value. Use pmales − pfemales. Round your test statistic to two decimal places and your P-value to four decimal places.)
| z | = |
| P | = |
Do these data provide convincing evidence that the proportion of females that owned an MP3 player is smaller than the corresponding proportion of males? Carry out a test using a significance level of 0.01.
You may need to use the appropriate table in Appendix A to answer this question.
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