Question

In: Statistics and Probability

Match each scenario with the SINGLE MOST appropriate test. Each answer choice may be used once,...

Match each scenario with the SINGLE MOST appropriate test. Each answer choice may be used once, more than once, or not at all. Assume all data collection is by random sampling unless the question suggests otherwise.

Is there evidence that the mean price of a pound of Gala apples is more than $1.4? Prices were collected from 200 grocery stores throughout the US.

In the US, what is the mean of the difference between the salary of a person the year after finishing college and ten years into his/her career?

Is the mean number of hours an adult watches TV on election day in the US greater than the mean number of hours an adult watches TV on election day in Germany?

Is there evidence that not all means are the same when comparing the mean college graduation age of students in the US, Japan, China and Europe?

Ten students will obtain their PhDs in Statistics next semester. The head of the department wants to know the mean number of years these ten students took to graduate.

Is there evidence that US high school students sleep more hours in the fall than in the spring? Data was collected in the fall and in the spring from the same sample of 55 US high school students.
  

What is the mean number of newspapers sold daily in newsstands in the US? A simple random sample of 200 newsstands across the US was selected to answer the question.
A.

One-Sample Mean Confidence Interval or Significance Test
B.

Two-Sample Comparison of Means Confidence Interval or Significance Test
C.

One-Way ANOVA
D.

No Inference Methods Needed
E.

Matched Pairs Confidence Interval or Significance Test

Solutions

Expert Solution

Scenario Appropriate test
Is there evidence that the mean price of a pound of Gala apples is more than $1.4? Prices were collected from 200 grocery stores throughout the US. A. One-Sample Mean Confidence Interval or Significance Test
In the US, what is the mean of the difference between the salary of a person the year after finishing college and ten years into his/her career? E. Matched Pairs Confidence Interval or Significance Test
Is the mean number of hours an adult watches TV on election day in the US greater than the mean number of hours an adult watches TV on election day in Germany? B. Two-Sample Comparison of Means Confidence Interval or Significance Test
Is there evidence that not all means are the same when comparing the mean college graduation age of students in the US, Japan, China and Europe? C. One-Way ANOVA
Ten students will obtain their PhDs in Statistics next semester. The head of the department wants to know the mean number of years these ten students took to graduate. A. One-Sample Mean Confidence Interval or Significance Test
Is there evidence that US high school students sleep more hours in the fall than in the spring? Data was collected in the fall and in the spring from the same sample of 55 US high school students. E. Matched Pairs Confidence Interval or Significance Test
What is the mean number of newspapers sold daily in newsstands in the US? A simple random sample of 200 newsstands across the US was selected to answer the question A. One-Sample Mean Confidence Interval or Significance Test

orchestra answered 1 year ago
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