subject
Mathematics, 23.07.2020 02:01 2021ehays

A research engineer for a tire manufacturer is investigating tire life for a new rubber compound and has built 16 tires and tested them to end-of-life in a road test. The sample mean and standard deviation are 60,139.7 and 3645.94 kilometers. a) Can you conclude, using α-0.05, that the standard deviation of tire life is less than 4000 kilometers? State any necessary assumptions about the underlying distribution of the data. Find the P-value for this test.
b) Explain how you could answer the question in part (a) by constructing a 95% one-sided confidence interval for σ.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 12:50
What constants do you need to add to each of the following quadratic equations to complete the square? 2x2 - 3x = 0 x2 - 8x = 0 2x2 - 11x = 18
Answers: 1
question
Mathematics, 21.06.2019 17:00
If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other
Answers: 2
question
Mathematics, 21.06.2019 18:30
What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12
Answers: 1
question
Mathematics, 22.06.2019 00:00
Plz hurry finals a paper cup in the shape of an inverted cone is 8 inches tall and has a radius of 1.5 inches. how much water can the cup hold? use 3.14 for pi. round the answer to the nearest tenth. a) 12.6 cubic in. b) 18.8 cubic in. c) 37.7 cubic in. d) 56.5 cubic in.
Answers: 2
You know the right answer?
A research engineer for a tire manufacturer is investigating tire life for a new rubber compound and...
Questions
question
Spanish, 08.01.2021 23:30
question
Mathematics, 08.01.2021 23:30
question
Mathematics, 08.01.2021 23:30
question
Mathematics, 08.01.2021 23:30
question
History, 08.01.2021 23:30
question
Mathematics, 08.01.2021 23:30
question
Mathematics, 08.01.2021 23:30
question
English, 08.01.2021 23:30
question
Mathematics, 08.01.2021 23:30