A research analyst believes that average back-to-school spending is more than a trade group's prediction of $500. Specify the null and alternative hypothesis.

Question 1 options:

A)

Ho: 500 versus Ha: >500

B)

Ho: =500 versus Ha: 500

C)

Ho: 500 versus Ha: <500

Using a random sample of n = 50, the sample mean is = 13.5. Suppose that the population standard deviation is =2.5.

Is the above statistical evidence sufficient to make the following claim 15:

o: =15

: 15

= 0.05.

p value = 0

Interpret the results using the p value test.

Question 2 options:

A)

Do not reject Ho.

B)

Reject Ho.

A small p-value calculated from a data indicates:

Question 3 options:

A)

We will not reject Ho.

B)

The more likely the outcomes.

C)

There is not sufficient evidence to support Ha.

D)

We will reject Ho.

Using a random sample of n = 36, the sample mean is 13.5. Suppose that the population standard deviation is = 3. The null and alternative hypotheses are below. Calculate the p value.

o: = 15

: 15

Question 4 options:

A)

1.220

B)

0.0122

C)

0

D)

0.122

A certain experimental drug claims a cure rate of at least 80% for females with breast cancer. Describe the Type I error.

Question 5 options:

A)

A breast cancer patient believes that the cure rate is equal to 80%.

B)

A breast cancer patient believes that the experimental drug has an 80% success rate.

C)

A breast cancer patient believes the experimental drug has at least an 80% cure rate when it has a cure rate that is less than 80%.

D)

A breast cancer patient believes the cure rate for the drug is less than 80% when it is at least 80%.

Using a random sample of n = 64, the sample mean is 6.9. Suppose that the population standard deviation is = 0.35. The null and alternative hypotheses are below. Calculate the p value.

Ho: 7

H: <7

Question 6 options:

A)

0.000113

B)

0.00113

C)

0.0000113 D)

0.0113

We want to test if the average patient wait time before being seen by a doctor is less than 20 minutes. The null and alternative hypotheses are:

Question 7 options:

A)

Ho: 20 versus Ha: <20

B)

Ho: 20 versus Ha: >20

C)

Ho: =20 versus Ha: 20

Using a random sample of n = 49, the sample mean is 199.5. Suppose that the population standard deviation is = 14. The null and alternative hypotheses are below. Calculate the p value.

Ho: 195

Ha: > 195

Question 8 options:

A)

0.122

B)

0.0122

C)

1.220

D)

12.22

According to the National Association of Colleges and Employers, finance graduates make an average of () $52,402 a year. The standard deviation of annual salaries of finance graduates is () $7,000. A random sample of 100 accounting graduates show that the sample mean salary is $54,390.

If we were to increase the sample size (n) from 100 to 144, the z score will:

Question 9 options:

A)

decrease.

B)

be zero.

C)

stay the same.

D)

increase.

Using a random sample of n = 50, the sample mean is 297.6. Suppose that the population standard deviation is =12.

Is the above statistical evidence sufficient to make the following claim that >295:

o: 295

a: >295

= 0.01. p value= 0.063

Interpret the results using the p value test.

Question 10 options:

A)

Do not reject Ho.

B)

Reject Ho.