subject
Mathematics, 16.07.2020 01:01 mia12340

A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 1515 years with a variance of 2525. If the claim is true, in a sample of 4141 wall clocks, what is the probability that the mean clock life would differ from the population mean by more than 0.40.4 years

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 18:10
Which of these tables represents a non-linear function?
Answers: 1
question
Mathematics, 21.06.2019 19:00
Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7
Answers: 2
question
Mathematics, 21.06.2019 20:30
Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp
Answers: 1
question
Mathematics, 21.06.2019 22:00
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
Answers: 1
You know the right answer?
A production manager at a wall clock company wants to test their new wall clocks. The designer claim...
Questions
question
Mathematics, 20.09.2020 02:01
question
Mathematics, 20.09.2020 02:01
question
Mathematics, 20.09.2020 02:01
question
Geography, 20.09.2020 02:01
question
English, 20.09.2020 02:01
question
Mathematics, 20.09.2020 02:01
question
Mathematics, 20.09.2020 02:01
question
Mathematics, 20.09.2020 02:01
Questions on the website: 13722367