A doctor wants to test if the average cholesterol level of adult hospital patients in South Africa is 180 mmol/L. The doctor randomly selected 16 adult patients from South African hospitals and measured their cholesterol levels. The sample mean cholesterol level was 200 mmol/L. Past research has shown that the standard deviation of the cholesterol level is 24 mmol/L. Using this information, the doctor will conduct a hypothesis test using a 5% level of significance. Which of the following pairs of hypotheses will the doctor use for this hypothesis test? OH, : p = 180 vs H :p = 200 OH, : H = 200 vs H, :P + 180 OH, : p = 180 Vs H, : p > 180 H, : p + 180 vs OH, :p = 180 H, : p< 180 vs What is the value of the test statistic that the doctor will use? 02.50 O-2.50 O-0.83 ONone of the other options gives the value of the test statistic. 03.33 A colleaque of the doctor wishes to construct a 95% confidence interval for the true average cholesterol level of adult hospital patients in South Africa. How many adult hospital patients should be included in this doctor's sample if he wants the error of the estimate to be at most 8 mmol/L? O 38 O35 O 25
A doctor wants to test if the average cholesterol level of adult hospital patients in South Africa is 180 mmol/L. The doctor randomly selected 16 adult patients from South African hospitals and measured their cholesterol levels. The sample mean cholesterol level was 200 mmol/L. Past research has shown that the standard deviation of the cholesterol level is 24 mmol/L. Using this information, the doctor will conduct a hypothesis test using a 5% level of significance. Which of the following pairs of hypotheses will the doctor use for this hypothesis test? OH, : p = 180 vs H :p = 200 OH, : H = 200 vs H, :P + 180 OH, : p = 180 Vs H, : p > 180 H, : p + 180 vs OH, :p = 180 H, : p< 180 vs What is the value of the test statistic that the doctor will use? 02.50 O-2.50 O-0.83 ONone of the other options gives the value of the test statistic. 03.33 A colleaque of the doctor wishes to construct a 95% confidence interval for the true average cholesterol level of adult hospital patients in South Africa. How many adult hospital patients should be included in this doctor's sample if he wants the error of the estimate to be at most 8 mmol/L? O 38 O35 O 25
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:A doctor wants to test if the average cholesterol level of adult hospital patients in South Africa is 180 mmol/L. The
doctor randomly selected 16 adult patients from South African hospitals and measured their cholesterol levels.
The sample mean cholesterol level was 200 mmol/L. Past research has shown that the standard deviation of the
cholesterol level is 24 mmol/L. Using this information, the doctor will conduct a hypothesis test using a 5% level
of significance.
Which of the following pairs of hypotheses will the doctor use for this hypothesis test?
OH, : p = 180
H, : p = 200
vs
OH, : H = 200
H, : P + 180
Vs
OH, : p = 180
H, :p> 180
vs
OH, : H = 18o
H, : p + 180
vs
OH, : p = 180
H, : p < 180
vs
What is the value of the test statistic that the doctor will use?
O2.50
O-2.50
O-0.83
ONone of the other options gives the value of the test statistic.
03.33
A colleague of the doctor wishes to construct a 95% confidence interval for the true average cholesterol level of
adult hospital patients in South Africa. How many adult hospital patients should be included in this doctor's
sample if he wants the error of the estimate to be at most 8 mmol/L?
O 38
O35
O 25
05
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