Mathematics: Consider h0: μ = 45 versus h1: μ 45. a random sample of 25 observations produced a sample mean of 41.8. using α = .025 and the population is known to be normally distributed with σ = 6.

Consider h0: μ = 45 versus h1: μ 45. a random - id0451452434610, CarQuestionl6367

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morgans53005

03.01.2022

Given
$H0: \ \mu=45 \\ \\ H1: \ \mu\ \textless \ 45$
This is a one-tailed test.

$z= \frac{41.8-45}{6/ \sqrt{25} } = \frac{-3.2}{6/5} = \frac{-3.2}{1.2} =-2.6667$

$P(z\ \textless \ -2.6667)=0.00383$

Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.

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Ответ:

Bethany0323

16.09.2020

Mathematics

13 minutes

The drawing will help

Phoebe ran 5 miles in 65 minutes. howeran 5 miles in 65 minutes. how many minutes did it take phoebe

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Consider h0: μ = 45 versus h1: μ < 45. a random sample of 25 observations produced a sample mean of 41.8. using α = .025 and the population is known to be normally distributed with σ = 6.

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