Question

PLEASE HELP!!!!

Question 1 (4 points) Question 1 Unsaved
The probability that an event occurs is found to be p = 0.032. Which of the following is NOT true?

Question 1 options:

The results are significant at the α = .10 level.


The results are significant at the α = .05 level.


The results are significant at the α = .01 level.


The results are significant at the .15 level.

Question 2

The average score on a nationwide standardized test is found to be 124 with a standard deviation of σ = 8.4. We at GCA believe our students scored better than average on the test. A sample of 40 GCA student's scores was taken. The average score for the sample was 126, A hypothesis test is conducted at the .05 significance level.

Which of the following are the correct null and alternative hypotheses for this test?

Question 2 options:

Ho: µ = 124

Ha: µ < 124


Ho: µ > 124

Ha: µ = 124


Ho: µ = 124

Ha: µ > 124


Ho: µ < 124

Ha: µ = 124

Question 3 (4 points) Question 3 Unsaved
The average score on a nationwide standardized test is found to be 124 with a standard deviation of σ = 8.4. We at GCA believe our students scored better than average on the test. A sample of 40 GCA student's scores was taken. The average score for the sample was 126, A hypothesis test is conducted at the .05 significance level.

Which of the following is the correct test statistic for the hypothesis test?

Question 3 options:

z = -1.51


z = 1.51


z = 2.65


z = -2.65

Question 4 (4 points) Question 4 Unsaved
The average score on a nationwide standardized test is found to be 124 with a standard deviation of σ = 8.4. We at GCA believe our student's scored better than average on the test. A sample of 40 GCA student's scores was taken. The average score for the sample was 126, A hypothesis test is conducted at the .05 significance level.

Which of the following is the correct p-value for the hypothesis test?

Question 4 options:

p = .066


p = .934


p = .004


p = .996

Question 5 (4 points) Question 5 Unsaved
The average score on a nationwide standardized test is found to be 124 with a standard deviation of σ = 8.4. We at GCA believe our students scored better than average on the test. A sample of 40 GCA student's scores was taken. The average score for the sample was 126, A hypothesis test is conducted at the .05 significance level.

Which of the following is the correct decision for the test?

Question 5 options:

Reject Ha


Do Not Reject Ha


Do Not Reject Ho


Reject Ho

Question 6 (4 points) Question 6 Unsaved
The average score on a nationwide standardized test is found to be 124 with a standard deviation of σ = 8.4. We at GCA believe our student's scored better than average on the test. A sample of 40 GCA student's scores was taken. The average score for the sample was 126, A hypothesis test is conducted at the .05 significance level.

Which of the following is the probability of making Type 1 error?

Question 6 options:

.01


.05


.90


.95

Save

Question 7 (4 points) Question 7 Unsaved
A random sample of size 36 is drawn from a population. The mean of the sample is 25.3. The population has a known standard deviation of σ = 4.7.

What would be the margin of error for a 95% confidence interval?

Question 7 options:

1.29


1.54


1.57


2.02

Question 8 (4 points) Question 8 Unsaved
A random sample of size 36 is drawn from a population. The mean of the sample is 25.3. The population has a known standard deviation of σ = 4.7.

What would be the 99% confidence interval?

Question 8 options:

(23.28, 27.32)


(23.77, 26.84)


(24.01, 26.59)


(24.172, 26.43)

Answer 1

sorry we can not help you with test its against the code of conduct @starlight513

Answer 2

\(\Huge\cal\color{blue}{welcome~to~open~study}\) please reed this http://openstudy.com/code-of-conduct