Physics

Physics, 09.11.2019 02:31, BaileyElizabethRay

Define the alpha level and the critical region for a hypothesis test

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Mathematics, 22.06.2019 11:20, vlactawhalm29

Assume that the weight of cereal in a “12.6- ounce box” is n(μ, 0.22). the food and drug association (fda) allows only a small percentage of boxes to contain less than 12.6 ounces. we shall test the null hypothesis h0: μ = 13 against the alternative hypothesis h1: μ < 13. (a) use a random sample of n = 25 to define the test statistic and the critical region that has a significance level of α = 0.025.

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Mathematics, 29.06.2019 16:40, Spiderblack212

Abowl contains two red balls, two white balls, and a fifth ball that is either red or white. let p denote the probability of drawing a red ball from the bowl. we shall test the simple null hypothesis h0: p = 3/5 against the simple alternative hypothesis h1: p = 2/5. draw four balls at random from the bowl, one at a time and with replacement.letx . (a) define a critical region c for this test in terms ofx. (b) for the critical region c defined in part (a), find the values of α and β\

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Mathematics, 29.07.2019 16:10, VETORRES

A0.1 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is different from 0.5. assume that sample data consists of 66 girls in 144 births, so the sample statistic of (11/24) results in a z score that is 1 standard deviation below 0. complete parts (a) through (d) below. a. identify the null hypothesis and the alternative hypothesis.b. what is the value of alpha? c. what is the sampling distribution of the sample? statistic? d. is the test? two-tailed, left-tailed, or? right-tailed? e. what is the value of the test? statistic? f. what is the? p-value? g. what are the critical? value(s)? h. what is the area of the critical? region?

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Mathematics, 29.10.2019 03:31, tatenasira

Assume that the weight of cereal in a "12.6- ounce box" is n(μ,0.2 2 ). the food and drug association (fda) allows only a small percentage of boxes to contain less than 12.6 ounces. we shall test the null hypothesis h 0 : μ = 13 against the alternative hypothesis h 1 : μ < 13. (a) use a random sample of n = 25 to define the test statistic and the critical region that has a significance level of α = 0.025. (b) if x = 12.9, what is your conclusion? (c) what is the p-value of this test?

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