Mathematics, 26.10.2020 21:10 dontworry48

Please help! Answer all if possible, I will give brainliest if you can ^^

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:30, yennie123

Which expressions are equivalent to -6 + 3m

Answers: 1

continue

Mathematics, 21.06.2019 16:30, taythestargazer71

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Answers: 2

continue

Mathematics, 21.06.2019 20:50, brea2006

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Answers: 3

continue

Mathematics, 22.06.2019 00:30, sanfordl

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

Answers: 2

continue

You know the right answer?

Please help! Answer all if possible, I will give brainliest if you can ^^...