Mathematics, 28.11.2019 04:31, chloiesierra29
Arecent study focused on the number of times men and women send a wechat message in a day. the information is summarized next. at the .01 significance level, conclude on whether there is a difference in the mean number of times men and women send a twitter message in a day.
sample size sample mean population standard deviation
men 25 23 5
women 30 28 10
1)develop the null and alternative hypotheses for this study?
2)determine a test statistic and the critical value(s).
3) calculate the value of the test statistic for this hypothesis testing.
4)what is the p-value for this hypothesis test?
5)based on the p-value, what is your conclusion?
we know the population standard deviation, maybe we should use z test?
Answers: 2
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Arecent study focused on the number of times men and women send a wechat message in a day. the infor...
Mathematics, 04.04.2020 22:46
Mathematics, 04.04.2020 22:46
Mathematics, 04.04.2020 22:46
Mathematics, 04.04.2020 22:46