A consumer affairs investigator records the repair cost for 4 randomly selected TVs. A sample mean of $75.89 and standard deviation of $13.53 are subsequently computed. Determine the 80% confidence interval for the mean repair cost for the TVs. Assume the population is approximately normal.
Step 1 of 2: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
Step 2 of 2: Construct the 80%80% confidence interval. Round your answer to two decimal places.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A consumer affairs investigator records the repair cost for 4 randomly selected TVs. A sample mean of $75.89 and standard deviation of ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
Snorkel and two friends rented three life jackets and a sailboat. The life jackets were $3 each and the boat was $12 an hour. The total cost was $93. For how many hours did they rent the sailboat? (I need an equation along with the answer.)
Answers (1)
A car puchased for $12,000 depreciates under a straight-line method in the amount of $850 each year. Which equation below best models this depreciation? A) y = 12000x + 850 B) y = 12000 + 850x C) y = 12000x - 850 D) y = 12000 - 850x
Answers (2)
A bag contains 6 red tiles and 5 yellow tiles. Another bag contains 8 red tiles and 2 yellow tiles. A token is removed from each bag. What is the probability that both tiles are yellow?
Answers (1)
Use your knowledge of transformations to find the matching graph. Ax) = 2x/x+1 DONE Intro
Answers (1)
A rope was 9.45 meters long. it was cut into 3 pieces. the length of the first piece of rope was 1/5 of the original length. the second piece of rope was 0.12 meter longer than the third piece. how long was the second piece of rope
Answers (2)
New Questions in Mathematics
Chaz rides 1/3 mile every 1/6 hour. How far does he ride in 1 hour?
Answers (1)
X times x + 3 to the power of 2 equals 48, what is x?
Answers (1)
a rental car agency charges 190 per a week plus. 25 per mile to rent a car. How many miles can you travel in one week for 370
Answers (1)
How do you factorise 7x + 29
Answers (1)
A round swimming pool has a radius of 12 feet. What is it's circumference
Answers (1)