Mathematics, 07.12.2021 23:30 nady82
You work for a consumer advocacy agency and want to estimate the populations means cost of monthly maintenance on a car. It is assumed that the average monthly cost of maintenance is $210 dollars. In a random sample of 100 cars, you find the average monthly maintenance cost was $185. Assume that the population standard deviation is known to be $125; Use a 0.03 significance level to test the claim that the population mean weight of cost of maintenance differs from 210 lbs. State the null and alternate hypothesis test
A) H0: μ≤185
Ha: μ>185
B) H0: μ≥210
Ha: μ<210
C) H0=210
Ha: μ=185
D) H0: μ=210
Ha: μ ≠ 210
Answers: 2
Mathematics, 21.06.2019 20:00, paulesparsa6
Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'
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Mathematics, 22.06.2019 00:50, edith47
Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours
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You work for a consumer advocacy agency and want to estimate the populations means cost of monthly m...
Mathematics, 28.02.2021 01:40
Mathematics, 28.02.2021 01:40
Mathematics, 28.02.2021 01:40