Mathematics, 06.05.2020 22:02 rod02
A consumer group wants to know if an automobile insurance company with thousands of customers has an average insurance payout for all their customers that is greater than $500 per insurance claim. They know that most customers have zero payouts and a few have substantial payouts. The consumer group collects a random sample of 18 customers and computes a mean payout per claim of $579.80 with a standard deviation of $751.30. Is it appropriate for the consumer group to perform a hypothesis test for the mean payout of all customers?
Possible answers:
A: Yes, it is appropriate because the population standard deviation is unknown.
B: Yes, it is appropriate because the sample size is large enough, so the condition that the sampling distribution of the sample mean be approximately normal is satisfied.
C: No, it is not appropriate because the sample is more than 10 percent of the population, so a condition for independence is not satisfied.
D: No, it is not appropriate because the standard deviation is greater than the mean payout, so the condition that the sampling distribution of the sample mean be approximately normal is not satisfied.
E: No, it is not appropriate because the distribution of the population is skewed and the sample size is not large enough to satisfy the condition that the sampling distribution of the sample mean be approximately normal.
Answers: 3
Mathematics, 21.06.2019 13:10, markayla61
When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.
Answers: 1
Mathematics, 21.06.2019 16:10, marsewilliams
20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm
Answers: 1
Mathematics, 21.06.2019 23:40, kamdenburr
Sanjay solved the equation below. which property did he use to determine that 7x+42=42 is equivalent to 7(x+6)=42 7x+42=42 7x=0 x=0
Answers: 1
A consumer group wants to know if an automobile insurance company with thousands of customers has an...
Mathematics, 29.10.2020 14:00
History, 29.10.2020 14:00
Physics, 29.10.2020 14:00
Chemistry, 29.10.2020 14:00
Mathematics, 29.10.2020 14:00
Mathematics, 29.10.2020 14:00