In a random sample of 140 voters, the proportion of voters in favor of a bond issue is 0.7. Let p = proportion of all voters who are in favor of the bond issue. (1) Test H0:p≤0.6 against H1:p>0.6. Use...


In a random sample of 140 voters, the proportion of voters in favor of a bond issue is 0.7. Let p = proportion of all voters who are in favor of the bond issue.

(1)    Test H0:p≤0.6 against H1:p>0.6. Use α=0.05.


The test statistic is:


The critical value is:
The final conclustion is




A.
There is not sufficient evidence to reject the null hypothesis that p≤0.6.


B.
We can reject the null hypothesis that ?≤0.6p≤0.6 and accept that p>0.6.



(2)    Test H0:p≥0.6 against H1:p<0.6. use="" α="">


The test statistic is:


The critical value is :
The final conclustion is




A.
We can reject the null hypothesis that p≥0.6 and accept that p<>


B.
There is not sufficient evidence to reject the null hypothesis that p≥0.6.



(3)    Test ?H0:p=0.5 against H1:p≠0.5. Use α=0.05.


The test statistic is:


The positive critical value is :


The negative critical value is :
The final conclustion is




A.
There is not sufficient evidence to reject the null hypothesis that p=0.5.


B.
We can reject the null hypothesis that p=0.5 and accept that p≠0.5.



Jun 02, 2022
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