Use a Ol significance level anda 5. 191 Test the mull hypothesis that the mean a

Question

Use a Ol significance level anda 5. 191 Test the mull hypothesis that the mean age of Green voters wo tail test. A sample of 16 voters has a sample mean -25. 23.5 and a variance-9 the proportion of men who voted for Trump equals the proportion of Use a 01 significance level, a two tail test and the following sample data: 6. [14] Test the hypothesis that women who voted for Trump. 200 90 oters 100 For Trump 60 7. [6] Test the null hypothesis that the variance of income of Trump voters-85. Use a 05 significance level, a one tail test. A sample of20 voters has a sample mean 55 and a variance 75 8. 16] Test the null hypothesis that the proportion of students happy Trump won is greater than or equal to .7. Use a 05 significance level, a one tail test. A sample of 20 students has 12 happy students 9. [IS). Test the hypothesis that the average happiness level before and after the election of Trump is L Use 01 sinifieanse level a two tal tathellinmpledata of happines evels student before aer 4610

Explanation / Answer

5. Here claim is to test mean=25

So hypothesis is H0:mu=25 vs H1:my not equal to 25

As n is 16 test statistics is t=(xbar-mu)/(sd/sqrt(n))=(23.5-25)/(3/4)=-2

The t-critical values for a two-tailed test, for a significance level of =0.01 are

tc=2.947 and tc=2.947

The P-Value is .063945.

P value is greater than alpha so we do not reject null hypothesis

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.