For each of the following tests of hypotheses, determine whether the null hypotheses shouldbe rejected. Use the classical method by finding the lower X₁ and upper xu limits for two-tailtests (or one of the two for a one-tail test). Additionally, don't forget to use a t-value (ratherthan a z-value) when n<30.a. Ho: μ = 6,000 Ha: μ # 6,000; n = 70; x = 6,150; o = 2,600; α = .01Rejectb. Ho: μ = 50 Ha: µ > 50; n = 24; x = 55; s = 7; α = .05c. Ho: μ = 400 Ha: µ < 400; n = 56; x = 350; s = 62; a =.03 Don't rejectReject

Solution Given That, For each of the following tests of hypotheses, determine whether the null…

Answered: For each of the following tests of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Please answer part d
Let μ denote the average resting heart rate for a healthy female. For a large-sample z test of Ho: μ = 80 versus H: μ< 80, find the P-value associated with each of the given values of the z test statistic. (Round your answers to four decimal places.) (a) -0.51 (b) -0.94 (c) -1.95 (d) -2.27 (e) 1.30
Consider a test of H 0: μ = 50 performed with the computer. SPSS reports a two-tailed p-value of 0.0574. Come to the appropriate conclusion for the given situation: H a: μ <50, z = -1.9, α = 0.05
A new insecticide is advertised to kill more than 95% roaches upon contact. In a laboratory test, the insecticide was applied to 400 roaches and 384 died immediately after contact. Is this sufficient evidence to support the advertised claim? Use α=0.05. (c) p-value for the problem above i
The research examining the effects of preschool childcare has found that children who spent time in day care perform better on math and language tests than children who stay home with their mothers. The results show that a sample of n = 25 children who attended day care before starting school had an average score of M = 87 with SS = 1536 on standardized math test for which the population mean is μ = 81. The population distribution is normal. Use α = .01. a. Is this sample sufficient to conclude that the children with a history of preschool day care are significantly better from the general population? b. Compute the 95% confidence interval.
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed and the parameter that is being tested.H0: μ = 9.0H1: μ ≠ 9.0
Consider a test of H 0: μ = 80 performed with the computer. SPSS reports a two-tailed p-value of 0.0070. Make the appropriate conclusion for the given situation: H a: μ ≠ 80, z = 2.7, α = 0.01
In testing the hypotheses H0: µ ≥50 vs. Ha: µ < 50, we found that the standardized test statistic is z = - 1.59. Calculate the p-value if α = .05.
For 50 randomly selected speed dates, attractiveness ratings by males of their female date partners (x) are recorded along with the attractiveness ratings by females of their male date partners (y); the ratings range from 1 to 10. The 50 paired ratings yield x=6.3, y=6.0, r=−0.257, P-value=0.072, and y=7.92−0.300x. Find the best predicted value of y (attractiveness rating by female of male) for a date in which the attractiveness rating by the male of the female is x=3. Use a 0.05 significance level. The best predicted value of y when x=3 is? (Round to one decimal place as needed.)
Identify the relevant the decision for the test, H0: μ = 2,500 vs. Ha: μ > 2,500 at α = 0.01 for an observed significance p = 0.018. Group of answer choices Since p ≤ α, the decision is not to reject H0. Since p > α, the decision is not to reject H0. Since p > α, the decision is to reject H0. Since p ≤ α, the decision is to reject H0. Since p > α/2, the decision is to reject H0.
A paired difference experiment produced the data given below. Complete parts a throughe below. na = 16 x = 148 X2 = 155 X = -7 s= 25 a. Determine the values of t for which the null hypothesis µ, - µɔ = 0 would be rejected in favor of the alternative hypothesis µ, - µɔ O B. The rejection region is t O C. The rejection region is

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