Question 6 Classify the hypothesis test as two-tailed, left-tailed, or right-tai
ID: 3052831 • Letter: Q
Question
Question 6
Classify the hypothesis test as two-tailed, left-tailed, or right-tailed.
The mean credit card debt among households in one state is $8400. A hypothesis test is to be performed to decide whether the mean credit card debt for households in the formerly affluent town of Rich-No-More differs from the mean credit card debt for the state.
Two-tailed
Left-tailed
Right-tailed
1 points
Question 7
Provide an appropriate response.
Is it true that the point estimate of a population mean must lie within the range of values defined by the corresponding confidence-interval estimate, regardless of the level of confidence achieved? Explain.
Yes. By definition, the prescribed confidence interval contains the value of the point estimate.
No. The confidence interval only defines a range of values that is likely to contain the point estimate with some prescribed level of confidence. This range of values is not guaranteed to contain the point estimate.
Two-tailed
Left-tailed
Right-tailed
Explanation / Answer
A hypothesis test is to be performed to decide whether the mean credit card debt for households in the formerly affluent town of Rich-No-More differs from the mean credit card debt for the state.
This is Two-tailed hypothesis test.
2) FALSE
confidence level matters
No. The confidence interval only defines a range of values that is likely to contain the point estimate with some prescribed level of confidence. This range of values is not guaranteed to contain the point estimate.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.