Suppose you perform the hypothesis test Ho: u = 80 versus H1:µ + 80. The population variance, o, isunknown. The sample size isn = 13. Assume the significance level is 0.09.Part 1:1) Should you use z or t to find the critical value?tPart 2 of 4Part 2:2) Choose the correct critical region.Reject Ho if t > taReject Ho if t <- t.Reject Ho if t > taReject Ho if t <Reject Ho if t > taReject Ho if t <- ta or t > taO Reject Ho if t 2 tęReject Ho if t s- ta or t > taO Reject Ho if t < – taO Reject Ho if t < -to or t > tReject Ho if t < – taO Reject Ho if t < - t; ort 2 tę

Given, Ho:μ=80H1:μ≠80 n = 13 a = 0.09

Answered: Suppose you perform the hypothesis test…

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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B5. Two independent samples from normally distributed populations have values {2, 5, 4, 1} for sample 1, and {2,3, 2, 2, 4} for sample 2. Test at the 1% level H9: of = o, H;: of > o3. As part of your answer, state an appropriate test statistic and its distribution under Ho. Hint: You may need to use one of these percentiles, F3,4(1%) = 16.694, F43(1%) = 28.710, F3,4(0.5%) = 24.259, F13(0.5%) = 46.195. %3D !! %3D
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My answer is as follows: T critical = 2.70 T value= 7.775 P< a (0.01) Therefore we reject the null. Is this correct?
ou wish to test the following claim (Ha) at a significance level of α=0.005. Ho:μ1=μ2Ha:μ1≠μ2 You believe both populations are normally distributed, but you do not know the standard deviations for either, and you have no reason to believe the variances of the two populations are equal. You obtain a sample of size n1=18 with a mean of M1=81.6 and a standard deviation of SD1=8.2 from the first population. You obtain a sample of size n2=23 with a mean of M2=88.9 and a standard deviation of SD2=5.8 from the second population. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =
You have data drawn from a normal distribution with a known variance of 16. You set up the following NHST: • Ho: data follows a N(2, 4²) • HÃ: data follows a N(µ, 4²) where µ ‡ 2. Test statistic: standardized sample mean z. Significance level set to a = .05. You then collected n = 16 data points with sample mean 1.5. (a) Find the rejection region. Draw a graph indicating the null distribution and the rejection region. (b) Find the z-value and add it to your picture in part (a). (c) Find the p-value for this data and decide whether or not to reject Ho in favor of HA.
17. Question content area top Part 1 Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ=52,400; α=0.10 Sample statistics: x=53,647, s=3000, n=20 LOADING... Click the icon to view the t-distribution table. Question content area bottom Part 1 What are the null and alternative hypotheses? Choose the correct answer below. A. H0: μ≠52,400 Ha: μ=52,400 B. H0: μ≥52,400 Ha: μ<52,400 C. H0: μ=52,400 Ha: μ≠52,400 D. H0: μ≤52,400 Ha: μ>52,400 Part 2 What is the value of the standardized test statistic? The standardized test statistic is enter your response here . (Round to two decimal places as needed.) Part 3 What is(are) the critical value(s)? The critical value(s) is(are) enter your response here . (Round to three decimal places as needed. Use…
3/10 Question 5 of 10, Step 1 of 1 Correct A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 413.0 gram setting. It is believed that the machine is underfilling the bags. A 41 bag sample had a mean of 412.0 grams. A level of significance of 0.05 will be used. Determine the decision rule. Assume the variance is known to be 625.00. Enter the decision rule, Answer E Tables E Keypad How to enter your answer Keyboard Shortcuts Reject Ho if z <

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