(b) Find the critical values) and identify the rejection region(s). A company wants to determine whether its consumer product ratings (0-10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a = 0.05, is thereenough evidence conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f).Consumer123456 786545855Rating (last year)Rating (this year)3143 6832EZZE(a) Identify the claim and state Ho and H-The claim is "The product ratings have changedfrom last year to this year."Let Hd be the hypothesized mean of the ratings last year minus the ratings this year. State Ho and H₂. Choose the correct answer below.OA. Ho: HozdB. Ho: Hd 20OC. Ho: Ha *0H₁: Hd=0Ha: Hd 0E. Ho: Hd=0Ha Ha #0OF. Ho: HasdHa: Hdd(b) Find the critical value(s) and identify the rejection region(s).(Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed.)

Answered: (b) Find the critical values) and…

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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Use the F-Distribution Table to find the Right Tail Critical Value a) a = 0.10, dfy = 5, dfp = 2. Fo = b) a = 0.05, dfN = 6, dfp = 26. F% = c) a = 0.05, dfy = 10, dfp = 21. F %3D d) a 0.025, dfy = 3, dfp = 24. Fo =
medical researcher says that less than 79% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 200 adults in that country, 75% think that healthy children should be required te vaccinated. At a=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test (Round to two decimal places as needed. Use a comma to separate answers as needed.) Identify the rejection region(s). Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. The rejection region is z>. O B. The rejection regions are z< and z> O C. The rejection region is <z< O D. The rejection region is z< (C) Find the standardized test statistic z. (Round to two decimal places as needed.) (d) Decide whether to reject or…
An education researcher claims that at most 3% of working college students are employed as teachers or teaching assistants. In a random sample of 400 working college students, 5% are employed as teachers or teaching assistants. At a = 0.10, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. Ha: p Ha: p (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo (Round to two decimal places as needed. Use a comma to separate answers as needed.) Identify the rejection region(s). Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) A. The rejection region is C. The rejection region is z (c) Find the standardized test statistic z. z= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision in the context of the original claim. V…
State the hypothesis, establish the critical region and compute the t statistic of these two groups.
This q Complete parts (a) through (c) below. (a) Determine the critical value(s) for a right-tailed test of a population mean at the a = 0.05 level of significance with 10 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the a = 0.05 level of significance based on a sample size ofn=20. (c) Determine the critical value(s) for a two-tailed test of a population mean at the a = 0.10 level of significance based on a sample size of n= 12. Click here to view the t-Distribution Area in Right Tail. (a) torit 0 (Round to three decimal places as needed.) %3D (b) terit = 0(Round to three decimal places as needed.) (c) torit= + 0 (Round to three decimal places as needed.) () More DEC 16 étv A II
Use the F-Distribution Table to find the Two Tail Critical Value a) a = 0,10, dfy = 8, dfp = 10. Fo = %3D b) a = 0.10, dfy = 8, dfp = 6. Fo = c)a = 0,10, dfy = 9, dfp = 7. Fo = d) a = 0.05, dfy = 8, dfp = 5. Fo
An education researcher claims that at most 6% of working college students are employed as teachers or teaching assistants. In a random sample of 300 working college students, 7% are employed as teachers or teaching assistants. At a = 0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. (b) Find the critical value(s) and identify the rejection region(s). Identify the critical value(s) for this test. Zo = 1.64 (Round to two decimal places as needed. Use a comma to separate answers as needed.) Identify the rejection region(s). Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. The rejection region is z> .06 B. The rejection region is z O D. The rejection region is
Find the critical value(s) for a left-tailed z-test with a= 0.01. Include a graph with your answer. The critical value(s) is(are). (Round to two decimal places as needed. Use a comma to separate answers as needed.) Draw a graph of the rejection region. Choose the correct graph below. O A. OC. OD. В. 3 -3 3 -3 ? Click to select vou ur answerls) 3-
We wish to test an effect of a drug that claimed to improves the patients with 80% of chance. The drug is given to 20 patients and we observed the number Y of people who improved. The hypothesis is: H0 : p = 0.8 vs H1 : p < 0.8. Use the rejection region RR = {y ≤ 12} and answer question a-e. a) State type I error in terms of Y and p. b) Find α. c) State type II error in terms of Y and p. d) Find β when p = 0. e) Find β when p = 0. f) Find the rejection region {y ≤ c} with α ≈ 0. g) For the rejection region in f), find β when p = 0. h) For the rejection region in f), find β when p = 0.
Can I get help with parts a),b) and c)
: (Null and Alternate Hypothesis, Rejection Region) A. Ho: µ = 0; Ha: µ < 0; Rejection Region: z < -2.34 B. Ho: µD = 0; Ha: µD < 0; Rejection Region: t < -2.57 C. Ho: µ = 0; Ha: µ > 0; Rejection Region: z > 2.34 D. Ho: µD = 0; Ha: µD ≠ 0; Rejection Region: z < -2.58 or z > 2.58 E. Ho: µD = 0; Ha: µD ≠ 0; Rejection Region: t < -2.90 or t > 2.90 (Mean Difference, and Test Statistic) A. µD = -1.889; t = -2.331 B. µD = -2.444; t = -9.891 C. µD = -1.889; z = -2.331 D. µD = -2.444; t = -2.331 E. µD = -211.278; z = 18.333 (p-value and conclusion) A. p = 0.026; FRHo (No sufficient evidence to reject the claim) B. p = 0.038; RHo (Sufficient evidence exists to reject the claim) C. p = 0.038; FRHo (No sufficient evidence to reject the claim) D. p = 0.016; RHo (Sufficient evidence exists to reject the claim) E. p = 0.016; FRHo (No sufficient evidence to reject the claim)

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