Question

Twelve different video games showing alcohol use were observed. The duration times of alcohol 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 85 sec? Are the requirements all satisf ed? 90 15 621 50 0 56 215 43 186 0 2 60 O A. The conditions for a binomial distribution must be satisfied. B. Either the population is normally distributed, or n>30, or both. □ C. At least one observation must be above or below 85 sec □ D. The sample observations must be a simple random sample Are the requirements all satisfied? O A. Yes. A normal quantile plot suggests that the sample is from a normally distributed population, and there are observations above and below 85 sec O B. Yes. The conditions for a binomial distribution aro satisfied, and there is enough information to determine that the sample is a simple random sample O C. No. The sample size is not greater than 30, the sample does not appear to be from a normally distributed population, and there is not enough information given to determine whether the sample is a simple random sample.

Answer 1

a)

B) Either the population is normally distributed, or n > 30 or both.

D) The sample observation must be a simple random sample.

b)

C) No, The sample size is not greater than 30, the sample does not appear to be form a normally distributed population, and there is not enough information given to determine whether the sample is a random sample.

Hope this will b helpful. Thanks and God Bless You . Please Thumbs up if this helpful. Or comment if any query.