The following information applies to the questions displayed below.] A sample of
ID: 3311025 • Letter: T
Question
The following information applies to the questions displayed below.]
A sample of 47 observations is selected from a normal population. The sample mean is 27, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.10 significance level.
rev: 03_02_2016_QC_CS-43090
1.
value:
10.00 points
Required information
Two-tailed test
One-tailed test
References
eBook & Resources
Multiple ChoiceDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.
2.
value:
10.00 points
Required information
Reject H0 when z > 1.282
Reject H0 when z 1.282
References
eBook & Resources
Multiple ChoiceDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.
3.
value:
10.00 points
Required information
References
eBook & Resources
WorksheetDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.
4.
value:
10.00 points
Required information
Reject H0
Fail to reject H0
References
eBook & Resources
Multiple ChoiceDifficulty: 2 IntermediateLearning Objective: 10-05 Conduct a test of a hypothesis about a population mean.
5.
value:
10.00 points
Required information
A sample of 47 observations is selected from a normal population. The sample mean is 27, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.10 significance level.
Explanation / Answer
The statistical software output for this problem is:
One sample Z summary hypothesis test:
: Mean of population
H0 : = 26
HA : > 26
Standard deviation = 3
Hypothesis test results:
Hence,
a) One Tailed
b) Reject H0 when z > 1.282
c) Test statistic = 2.29
d) Reject H0
e) p - Value = 0.0112
Mean n Sample Mean Std. Err. Z-Stat P-value 47 27 0.43759497 2.2852182 0.0112Related Questions
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