Question

4) The following display from a TI-84 Plus calculator presents the results of a hypothesis test for a population mean ?. T-Test ? < 37 t = -0.970163 p = 0.168145 x? = 36.82 Sx = 1.37597 n = 55 Do you reject H? at the ? = 0.05 level of significance? A) Yes B) No 5) The following output from MINITAB presents the results of a hypothesis test for a population mean ?. Test of mu = 45 vs. not = 45 N Mean StDev SE Mean 95% CI T P 57 41.69 11.961865 1.584388 (38.516105, 44.863895) -2.089135 0.041252 How many degrees of freedom are there? A) 56 B) 57 C) 58 D) 45 6) In a simple random sample of size 77, there were 37 individuals in the category of interest. Compute the sample proportion p?. A) 114 B) 0.925 C) 0.519 D) 0.481 SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 7) In a simple random sample of size 100, there were 60 individuals in the category of interest. It is desired to test H?: p = 0.69 versus H?: p < 0.69. i). Compute the sample proportion p?. ii). It is desired to test H?: p = 0.69 versus H?: p > 0.69 Compute the test statistic z. iii). Do you reject H? at the 0.05 level?

          4) The following display from a TI-84 Plus calculator presents the results of a hypothesis test for a population mean ?.

T-Test
? < 37
t = -0.970163
p = 0.168145
x? = 36.82
Sx = 1.37597
n = 55

Do you reject H? at the ? = 0.05 level of significance?
A) Yes
B) No

5) The following output from MINITAB presents the results of a hypothesis test for a population mean ?.

Test of mu = 45 vs. not = 45

N   Mean   StDev   SE Mean   95% CI   T   P
57   41.69   11.961865   1.584388   (38.516105, 44.863895)   -2.089135   0.041252

How many degrees of freedom are there?
A) 56   B) 57   C) 58   D) 45

6) In a simple random sample of size 77, there were 37 individuals in the category of interest. Compute the sample proportion p?.
A) 114   B) 0.925   C) 0.519   D) 0.481

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

7) In a simple random sample of size 100, there were 60 individuals in the category of interest. It is desired to test H?: p = 0.69 versus H?: p < 0.69.

i). Compute the sample proportion p?.
ii). It is desired to test H?: p = 0.69 versus H?: p > 0.69 Compute the test statistic z.
iii). Do you reject H? at the 0.05 level?

4) The following display from a TI-84 Plus calculator presents the results of a hypothesis test for a population mean ?.

T-Test
? < 37
t = -0.970163
p = 0.168145
x? = 36.82
Sx = 1.37597
n = 55

Do you reject H? at the ? = 0.05 level of significance?
A) Yes
B) No

5) The following output from MINITAB presents the results of a hypothesis test for a population mean ?.

Test of mu = 45 vs. not = 45

N Mean StDev SE Mean 95% CI T P
57 41.69 11.961865 1.584388 (38.516105, 44.863895) -2.089135 0.041252

How many degrees of freedom are there?
A) 56 B) 57 C) 58 D) 45

6) In a simple random sample of size 77, there were 37 individuals in the category of interest. Compute the sample proportion p?.
A) 114 B) 0.925 C) 0.519 D) 0.481

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

7) In a simple random sample of size 100, there were 60 individuals in the category of interest. It is desired to test H?: p = 0.69 versus H?: p < 0.69.

i). Compute the sample proportion p?.
ii). It is desired to test H?: p = 0.69 versus H?: p > 0.69 Compute the test statistic z.
iii). Do you reject H? at the 0.05 level?

Added by Kristen S.

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