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An occupational safety officer for a large company is conducting a study to investigate back problems in office workers who use a computer for most of the workday. The study will
investigate the difference in back problems for workers who stand and workers who sit. A group of 68 volunteers have agreed to participate in the nine-month study. Half the group
is randomly assigned to work while standing, and the other half is assigned to work while sitting. At the end of the study, the mean number of back problems between the two
groups will be calculated. The officer will use the results to estimate the difference in the mean number of back problems between those who work while standing and those who
work while sitting
Which of the following is an appropriate inference procedure for the study?

An occupational safety officer for a large company is conducting a study to investigate back problems in office workers who use a computer for most of the workd class=

Respuesta :

eliavalucio

Answer:

Answer is E

Step-by-step explanation:

did the test, also person who answered before was wrong

Considering the situation described, the appropriate test is given by:

E) A two sample t-interval for difference between population means.

When to use the t-distribution and the z-distribution?

  • If we have the standard deviation for the sample, the t-distribution is used.
  • If we have the standard deviation for the population, the z-distribution is used.

In this problem, we will have the data from the sample, hence it is a t-test. We will compare the population means of the two groups, hence a two-sample t-interval is used, and option E is correct.

More can be learned about hypothesis tests at https://brainly.com/question/16313918

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