Mathematics, 13.07.2019 18:40 morgannwaldrupp

Aresearcher wants to know if the average time in jail for robbery has increased from what it was when the average sentence was 7 years. he obtains data on 400 more-recent robberies and finds an average time served of 7.5 years. find a 95% confidence interval for the average time served (assume jail time follows a normal distribution with standard deviation 3 years).

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:30, hwhite41

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

Answers: 1

continue

Mathematics, 21.06.2019 18:00, mattsucre1823

Adriveway is 40 yards long about how many meters long is it

Answers: 2

continue

Mathematics, 22.06.2019 00:30, kkeith121p6ujlt

Afurniture store is having a weekend sale and is offering a 20% discount on patio chairs and tables the sales tax on furniture is 6.25%

Answers: 3

continue

Mathematics, 22.06.2019 03:00, bradenjesmt1028

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.

Answers: 3

continue

You know the right answer?

Aresearcher wants to know if the average time in jail for robbery has increased from what it was whe...