A bank surveyed all of its 60 employees to determine the proportion who participate in volunteer activities. Which of the following statements is true?
The bank should not use the data from this survey because this is an observational study.
The bank can use the result of this survey to prove that working for the bank causes employees to participate in volunteer activities,
The bank did not select a random sample of employees, so the survey will not provide the bank with useful information
D
The bank would have to use the survey data to construct a confidence interval in order to estimate the proportion of employees who participate in volunteer activities.
The bank does not need to use an inference procedure to determine the proportion of employees who participate in volunteer activities because the survey was a census of all
employees
DELL

Question

20-04-2022
Mathematics

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A bank surveyed all of its 60 employees to determine the proportion who participate in volunteer activities. Which of the following statements is true?
The bank should not use the data from this survey because this is an observational study.
The bank can use the result of this survey to prove that working for the bank causes employees to participate in volunteer activities,
The bank did not select a random sample of employees, so the survey will not provide the bank with useful information
D
The bank would have to use the survey data to construct a confidence interval in order to estimate the proportion of employees who participate in volunteer activities.
The bank does not need to use an inference procedure to determine the proportion of employees who participate in volunteer activities because the survey was a census of all
employees
DELL

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The true statement about the bank survey is (e) The bank does not need to use an inference procedure to determine the participant proportion

How to determine the true statement?

The population and the sample size are given as:

N = 60

This is so because the bank surveyed all her staff.

Since all the bank staffs participated in the survey, it means that the proportion of the study is 1 or 100%.

So, the bank do not need to determine the proportion that participates

Hence, the true statement is (e)