Question

Hypothesis Test. Researchers suggest that, nationwide, college student populations have about 10% Type A personalities. Does North Georgia have a higher percentage? A recent survey showed a sample of 155 North Georgia students contained 22 students with Type A personalities.

Question: In words, what is the null hypothesis?

options:

	North Georgia has a higher percentage of Type A personalities as the nationwide population.
	North Georgia has a lower percentage of Type A personalities as the nationwide population.
	North Georgia has an identical percentage of Type A personalities as the nationwide population.
	None of these.

Question 7 (1 point)

Hypothesis Test. Researchers suggest that, nationwide, college student populations have about 10% Type A personalities. Does North Georgia have a higher percentage? A recent survey showed a sample of 155 North Georgia students contained 22 students with Type A personalities.

If the level of significance is 0.05, the correct statistical conclusion would be.

Question 7 options:

	Reject the alternative
	Accept the alternative
	Reject the null
	Accept the null
	None of these

Question 8 (1 point)

Hypothesis Test. Researchers suggest that, nationwide, college student populations have about 10% Type A personalities. Does North Georgia have a higher percentage? A recent survey showed a sample of 155 North Georgia students contained 22 students with Type A personalities.

Question: The correct procedure for this hypothesis test is the 2-proportion z-test.

options:

	True
	False

Answer 1

6).North Georgia has an identical percentage of Type A personalities as the nationwide population.

[ hypothesis:-

$H_{0}:p=0.10$[ suggestion of the researcher ]

$H_{1}:p>0.10$ ]

7). Reject the null

[ explanation:-

i am using minitab to solve the problem.

steps :-

stat $\rightarrow$basic statistics $\rightarrow$1 proportion $\rightarrow$ select summarized data from the drop down menu $\rightarrow$in number of events type 22 , in number of trials type 155 $\rightarrow$ tick perform hypothesized test $\rightarrow$ in hypothesized proportion type 0.10 $\rightarrow$options $\rightarrow$ in confidence level type 95 $\rightarrow$ select the alternative hypothesis as proportion > hypothesized proportion $\rightarrow$ in method select normal approximation $\rightarrow$ok$\rightarrow$ok.

decision:-

p value = 0.041 < 0.05 (alpha)

we reject the null hypothesis. ]

8).False

[ here, we will do 1 proportion z test.]

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