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Which explanations are justified based on the evidence you obtained? Check all that apply.
A
It is possible that the population mean is 3.53, but the sample result is greater than that due to sampling variability.B
It is possible that the school administrator made a mistake, and the population mean is greater than 3.53.C
The fact that the sample mean is greater than the claimed population mean proves that the average GPA of the senior class is greater than 3.53D
The sample mean of 3.70 cannot be correct because the claimed population mean is 3.53.E
The population mean of 3.53 cannot be correct because the calculated sample mean is 3.70.2
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0✔ 0.250.50.75
A
0B
✔ 0.25C
0.5D
0.753
✔ yesno
A
✔ yesB
no169911
18,000✔ 18,75019,25019,500
A
18,000B
✔ 18,750C
19,250D
19,500169912
18,000✔ 18,75019,25019,500
A
18,000B
✔ 18,750C
19,250D
19,500169913
✔ yesno
A
✔ yesB
no169914
15,000✔ 16,83318,75022,000
A
15,000B
✔ 16,833C
18,750D
22,000169915
✔ 15,00016,83318,75022,000
A
✔ 15,000B
16,833C
18,750D
22,000169916
yes✔ no
A
yesB
✔ no169920
Question text not available
Answers:
The sampling distribution of has bias and variability.:low
The sampling distribution of has bias and variability.:low
169921
high✔ low
A
highB
✔ low169922
There is one dot at 3.45. What does that value represent?
A
In one simulated SRS of 100 students, the average GPA was = 3.45.
B
In one simulated SRS of 100 students, the population mean GPA was = 3.45.
C
There is a 1 out of 100 chance that the population mean GPA is = 3.45.D
A majority of the sample of 100 students had a GPA of = 3.45.169923
0✔ 0.250.50.75
A
0B
✔ 0.25C
0.5D
0.75169924
What happens to the standard deviation of the sampling distribution as the sample size increases?
A
It increases.B
It decreases.C
It stays the same.D
It may increase or decrease depending on the size of the population.169925
If a pollster wants to increase their ability to predict the outcome of an election, one thing they can do is increase the size of the sample. By doing so:
A
nonresponse will be eliminated.B
the results of the sample will be unbiased.C
the variability of the sample results will be reduced, giving greater precision in the estimate.D
the pollster can be certain that he can correctly predict the outcome of the election.169926
high✔ low
Answers:
The sampling distribution of has bias and variability.:low
The sampling distribution of has bias and variability.:low
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