Question 7 of 23
0.0/ 1.0 Points
Multiple myeloma or blood plasma cancer is characterized by increased blood vessel formulation in the
bone marrow that is a prognostic factor in survival. One treatment approach used for multiple myeloma is
stem cell transplantation with the patient’s own stem cells. The following data represent the bone marrow
microvessel density for a sample of 7 patients who had a complete response to a stem cell transplant as

measured by blood and urine tests. Two measurements were taken: the first immediately prior to the
stem cell transplant, and the second at the time of the complete response.
Patient
1
2
3
4
5
6
7
Before
158
189
202
353
416
426
441
After
284
214
101
227
290
176
290
Suppose you wanted to conduct a test of hypothesis to determine if there is sufficient
evidence to conclude that the mean bone marrow microvessel density is higher before
the stem cell transplant than after the stem cell transplant? What is the p-value
associated with the test of hypothesis you would conduct?

Part 4 of 16 -
2.0/ 3.0 Points
Question 8 of 23
1.0/ 1.0 Points
Which of the following values is not typically used for
?

Question 9 of 23
0.0/ 1.0 Points
A lab technician is tested for her consistency by taking multiple measurements of
cholesterol levels from the same blood sample. The target accuracy is a variance in
measurements of 1.2 or less. If the lab technician takes 16 measurements and the
variance of the measurements in the sample is 2.2, does this provide enough evidence
to reject the claim that the lab technician’s accuracy is within the target accuracy?
At the
= .01 level of significance, what is your conclusion?

Question 10 of 23
1.0/ 1.0 Points
In an article appearing in
Today’s Health
a writer states that the average number of calories in a serving
of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from
75, a nutritionist selected a random sample of 20 servings of popcorn and computed the sample mean
number of calories per serving to be 78 with a sample standard deviation of 7.
At the
= .05 level of significance, does the nutritionist have enough evidence to reject the
writer’s claim?

A.Cannot Determine
B.No
C.Yes
Answer Key: B

Part 5 of 16 -
2.0/ 2.0 Points