For the next questions, assume that a simple random sample has been taken
and the population is normally distributed. Engineers assessing the variation in
wait time at Starbucks, Dunkin Donuts, and Caribou Coffee determined that the
standard deviation of the wait time for a sample of nine customers was 25.6
seconds. Use a 95% confidence level.
-Find the critical value .

Question

For the next questions, assume that a simple random sample has been taken
and the population is normally distributed. Engineers assessing the variation in
wait time at Starbucks, Dunkin Donuts, and Caribou Coffee determined that the
standard deviation of the wait time for a sample of nine customers was 25.6
seconds. Use a 95% confidence level.
-Find the critical value  .

Quizplus · Accepted Answer

The Answer of For the next questions, assume that a simple random sample has been taken
and the population is normally distributed. Engineers assessing the variation in
wait time at Starbucks, Dunkin Donuts, and Caribou Coffee determined that the
standard deviation of the wait time for a sample of nine customers was 25.6
seconds. Use a 95% confidence level.
-Find the critical value  .

For the Next Questions, Assume That a Simple Random Sample