Question

Twelve different video games showing drug use were observed. The duration times of drug use were​ recorded, with the times​ (seconds) listed below. What requirements must be satisfied to test the claim that the sample is from a population with a mean greater than 75 ​sec? Are the requirements all​ satisfied?

86 13 623 50 0 53 198 45 172 0 2 59

What requirements must be​ satisfied? Select all that apply.

A. Either the population is normally​ distributed, or ngreater than​30, or both.

B. The conditions for a binomial distribution must be satisfied.

C. At least one observation must be above or below 75 sec.

D. The sample observations must be a simple random sample.

Answer 1

The requirements that must be satisfied to test the claim that the sample is from a population with a mean greater than 75 sec are: either the population is normally distributed, or n is greater than 30, or both, and at least one observation must be above or below 75 sec. These requirements are satisfied in this case.

Step-by-step explanation:

The requirements that must be satisfied to test the claim that the sample is from a population with a mean greater than 75 sec are:

1. A. Either the population is normally distributed, or n is greater than 30, or both.
2. C. At least one observation must be above or below 75 sec.

These requirements are satisfied in this case because we have more than 30 observations and at least one observation (86) is above 75 sec.

Learn more about Requirements for testing the claim of mean greater than 75 sec

Answer 2

the answer to the question will be c