Mathematics, 29.04.2021 17:30, moses638

A manager records the repair cost for 14 randomly selected dryers. A sample mean of $76.71 and standard deviation of $13.46 are subsequently computed. Determine the 90% confidence interval for the mean repair cost for the dryers. 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.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:50, umarhaley

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave

Answers: 1

continue

Mathematics, 21.06.2019 20:30, meowmeowcow

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld

Answers: 1

continue

Mathematics, 21.06.2019 21:40, ur4286

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

Answers: 3

continue

Mathematics, 21.06.2019 22:30, brooklyn4932

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x

Answers: 1

continue

Do you know the correct answer?

A manager records the repair cost for 14 randomly selected dryers. A sample mean of $76.71 and stand...