Exercise #2:ConsiderНA: μ HoCompute the sample size required to achieve following power levels:a.)• σ = 25·Effect size=5•α = 5%·& = 80%b.)Same as above, but using4 = 90%What happens to the required sample size when the power level is increased.c.)Same as in part a.) but using effect size = 15What happens to the required sample size when the effect size is increased.d.)Same as in part a.) but using a = 10%What happens to the required sample size when the significance is increased.e.)For effect size = 5, what is the value of μAQ Search

i solved this in same manner please refer same steps for answer.Explanation:

Answered: Exercise #2: Consider НA: μ Ho Compute…

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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Find the sample size n needed to estimate μ for each of the following situations: a. E = 5, σ = 40, (1 – α) = 0.95 b. E = 5, σ = 40, (1 – α) = 0.99
Find the minimum sample size n needed to estimate muμ for the given values of c, sigmaσ, and E. cequals=0.90sigmaσequals=7.3 and Eequals=2Assume that a preliminary sample has at least 30 members. n=? (Round up to the nearest whole number.)
Based on the attached Table 2 and 3: 1) How would you describe the result of t = -1.45 in this study? 2) Which t test statistic listed in Table 3 represents the smallest relative difference between the pretest and 3 months? Is it statistically significant? What does this result mean? 3) What are the assumptions for conducting a t-test for dependent groups? Which of these assumptions do you think were met by this study?
pleaseee sir solve question 24
A simple random sample of size n=200drivers were asked if they drive a car manufactured in a certain country. Of the 200 drivers surveyed, 104 responded that they did. Determine if more than half of all drivers drive a car made in this country at the α=0.05 level of significance. Complete parts (a) through (d).
Imagine we're conducting a single sample t-test. We're testing one-tailed at an alpha level of 0.05 and find a cut-off value of 1.833. What is the used sample size? A) 12 B) 10 C) 9 D) 11
According to the Official Stage Magician Handbook, magic rabbit weight (Ibs.) is normally distributed with u = 6.2 and o = 1.5. %3D Consider obtaining a random sample of 3 magic rabbits. Would it be unusual for the sample mean to be at least 6.5? Why or why not? Yes because the z-score corresponding to a sample mean of 6.5 would be z = 0.34. No because the z-score corresponding to a sample mean of 6.5 would be z = 0.34. O Yes because the z-score corresponding to a sample mean of 6.5 would be z = 0.20. O No because the z-score corresponding to a sample mean of 6.5 would be z = 0.20.
Test the claim about the population mean, μ, at the given level of significance using the given sample statistics. Claim: μ≠6000 α=0.07 σ=347 Sample statistics: x=5600 n=48 Determine the critical value(s).
1.)At α=0.05, Use the distribution table to find the critical values for the rejection regiontc=____ (use 4 decimal places) 2.) What is your conclusion? Accept the alternative hypothesis and reject the claim Accept the null hypothesis and support the claim Fail to reject the null hypothesis and do not support the claim Reject the null hypothesis and support the claim Reject the alternative hypothesis and support the claim
3. An experiment is conducted to measure the flex (amount of bending) in a thin composite beam when placed under a known load (force). Smaller beams made of the same material will then be used as springs to protect electronics. The manufacturer needs the beam to flex on average 5.0 mm, with 95 % of all samples having a flex between 4.7 mm and 5.3 mm. After testing the flex of 20 samples, the following numbers are found: (d) (e) 20 (f) (g) i=1 Each sample has the flex measured to the nearest 0.1 mm using electronic calipers. (a) What is the mean flex found using 20 samples? What is the sample standard deviation of flex four using 20 samples? What is the 95% confidence interval for an individual sample? (Not true mean this time!) That is, in what range would we expect the flex of 95 % of the samples to be found? x₁ = 102.2 mm 20 Σχι" = 523.7 mm2 Xi i=1 Does the set of samples used satisfy the desired failure rate? Explain the reasoning behind your answer. What percent difference is there…

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