subject
Mathematics, 01.08.2020 04:01 kaylaaguilar6538

A1A Tires claims that its tires last longer than tires manufactured by its main competitor, YYZ Tires. A consumer group studied the lifespans of tires manufactured by each manufacturer. The lifespans of a random sample of 10 tires from each manufacturer, in thousands of miles, are recorded. Assume that the population standard deviation of the lifespan for tires manufactured by A1A Tires is 3 thousand miles, while the population standard deviation of the lifespan for tires manufactured by YYZ Tires is 5 thousand miles, and assume that the lifespans of both companies' tires are normally distributed. Let A1A Tires be the first sample, and let YYZ Tires be the second sample. The consumer group conducts a two-mean hypothesis test at the 0.05 level of significance, to test if there is evidence that A1A Tires' claim is true. (a) H0:μ1=μ2; Ha:μ1>μ2, which is a right-tailed test. (b) z≈3.09 , p-value is approximately 0.001 (c) Which of the following are appropriate conclusions for this hypothesis test? Select all that apply. Select all that apply: Reject H0. There is sufficient evidence at the 0.05 level of significance to conclude that the tires manufactured by A1A Tires do in fact last longer than those manufactured by YYZ Tires. Fail to reject H0. There is insufficient evidence at the 0.05 level of significance to conclude that the tires manufactured by A1A Tires do in fact last longer than those manufactured by YYZ Tires.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 14:00
What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4
Answers: 2
question
Mathematics, 21.06.2019 16:30
If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.
Answers: 1
question
Mathematics, 21.06.2019 18:40
Ineed with number 6 , explain how to get 1978
Answers: 3
question
Mathematics, 21.06.2019 20:30
Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible
Answers: 1
You know the right answer?
A1A Tires claims that its tires last longer than tires manufactured by its main competitor, YYZ Tire...
Questions
question
History, 07.07.2019 01:00
question
Mathematics, 07.07.2019 01:00
Questions on the website: 13722362