A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows. Sample-1 Women Sample-2 Men n1 = 14 n2 = 17 $\bar{x}_1$ = 12.6 hrs $\bar{x}_2$ = 14.0 hrs $s_1$ = 3.9 hrs $s_2$ = 5.2 hrs Find the value of the Test statistic (T.S.) for this hypothesis test. Hints: T.S. = $t = \frac{\bar{x}_1 - \bar{x}_2}{\sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}}}$ $\circ$ 5.23 $\circ$ .856 $\circ$ -.856 $\circ$ -5.23
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23. The null hypothesis is that there is no difference between the amount of time spent watching television by women and by men. The alternative hypothesis is that the amount of time spent watching television by women is greater than the amount of time spent Show more…
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A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows. Women | Men x1 = 12.6 hrs | x2 = 14.0 hrs s1 = 3.9 hrs | s2 = 5.2 hrs n1 = 14 | n2 = 17 The following 99% confidence interval was obtained for μ1 – μ2, the difference between the mean amount of time spent watching television for women and the mean amount of time spent watching television for men: -6.33 < μ1 – μ2 < 3.53 What does this confidence interval from -6.33 hours to 3.53 hours suggest about the population means? Use precise statistical language and complete sentences.
Keondre P.
A researcher was interested in comparing the amount of time spent watching television by women and by men. The results of the researcher's study are provided. What does the confidence interval suggest about the population means? Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows: Women: x̄1 = 12.5 hrs s1 = 3.9 hrs n1 = 14 Men: x̄2 = 13.7 hrs s2 = 5.2 hrs n2 = 17 The 99% confidence interval, shown below, was obtained for μ1 - μ2, the difference between the mean amount of time spent watching television for women and the mean amount of time spent watching television for men: -6.13 hrs < μ1 - μ2 < 3.73 hrs
Shaiju T.
4. A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows. Women Men Mean time 12 hours 14 hours Standard deviation 4 hours 5 hours Construct a 95% confidence interval between the mean amount of time spent watching television by women and the mean amount of time spent watching television by men? (Assume amount of time spent watching television by women and the amount of time spent watching television by men have the same population standard deviation)
Ajiboye T.
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