Determine whether to reject or fail to reject Ho at the level of significance of a) x = 0.04 and b) x = 0.09.Ho: H= 126, Ha: 126, and P = 0.0614.a) Do you reject or fail to reject Ho at the 0.04 level of significance?A. Fail to reject Ho because P<0.04.OB. Fail to reject Ho because P > 0.04.O C. Reject Ho because P <0.04.OD. Reject Ho because P> 0.04.

GivenH0:μ=126Ha:μ≠126P-value(P)=0.0614

Answered: Determine whether to reject or fail to…

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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Consider the following: In general, when people diet they typically lose 10 lbs. (?σ = 2). A random sample of 16 people on the keto diet lost 15 lbs. Do people on the keto diet lose more or less weight than people on diets in general? 4. What is the research hypothesis? a) Weight loss in the keto diet sample does not differ from weight loss in the population of dieters in general (H1: X-bar = Mu) b)Weight loss in the keto diet sample does differ from weight loss in the population of dieters in general (H1: X-bar = Mu) c) Weight loss in the keto diet sample does not differ from weight loss in the population of dieters in general (H1: X-bar does not equal Mu) d) Weight loss in the keto diet sample does differ from weight loss in the population of dieters in general (H1: X-bar does not equal Mu)
Which of the following hypothesis tests has hypotheses closest to the hypotheses of Chi-square test for multiple proportions Case 3: Z test for 1 proportion Case 2: t test for 1 mean Case 8: Z test for 2 proportions Case 5: t test for 2 means
The critical value of chi-square is ____ when degrees of freedom equal 4 and "a" equals .05. A) 22.36 B) 9.49 C) 13.28 D) not enough information to determine.
Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correctsymbol (µ, p, Η) for the indicated parameter. An entomologist writes an article in a scientific journalwhich claims that fewer than 16 in ten thousand male fireflies are unable to produce light due to agenetic mutation. Use the parameter p, the true proportion of fireflies unable to produce light.
40 - 20 out of 200 men and 30 out of 300 women randomly selected in one region are anti-vaccine. Which of the following is a point estimate of the difference between the proportions of men and women who are not vaccinated? a) 0.04 B) 0.20 NS) 0 D) 0.10 TO) 0.01
Which bar graph shows the conditional distribution? O A. O Relative Frequency There Frequency 1.0 0.8- 0.6- 0.4- 0.2- 0.0- 100- 80- 60- 40- 20- Efficacy of e-Cigs ■ Did Not Quit ■Quit ELL Group 2 Group 1 Efficacy of e-Cigs Did Not Quit ■Quit Group 3 LLL Group 2 Group 3 Group 1 The graph suggests that the proportion of the smokers who quit tend to (g) Write a conclusion for this hypothesis test. sufficient evidence to conclude that O B. D. Frequency Relative Frequency 100- 80- 60- 40- 20- 1.0- 0.8- 0.6- 0.4- 0.2- 0.0- from group 1 to group 3. Efficacy of e-Cigs Did Not Quit Efficacy of e-Cigs Did Not Quit ■ Group 1 ■ Group 2 Group 3 Quit ■ Group 1 ■ Group 2 Group 3 Quit N
For testing H,: M=M, V.S H;: M2.546)=0.01, then the p- value is اختر احدى الاجابات 0.99 0.1 X 0.9 0.01
68
Select the correct answer(s) for each item. If NONE or MORE THAN ONE of the choices is the correct answer, choose E.
Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support each claim. Use the correct symbol (µ, p) for the indicated parameter. 4) 4) A psychologist claims that 7.5 percent of the population suffers from professional problems due to extreme shyness. а. b. A cereal company claims that the mean weight of the cereal in its packets is at least 14 oz.
15. For each of the following examples, state whether the chi-square goodness-of-fit or the chi-square test for independence is appropriate. 15d. A public health employee evaluates the proportion of lean, healthy, overweight, and obese students at a local college. A. goodness of fit test B. test for independence
b) A manufacturer claims that the average thickness of their chewing gum is 20mm. A quality control engineer wishes to check this claim and measures the average thickness of a sample of 10 pieces of gum, finding x = 18.6mm and s = 4mm. Does the sample seem to indicate that the average thickness of their chewing gum is not 20mm? Use a 0.05 level of significance. Circle the correct null and alternative hypotheses. i) H : μ = 20 : Нo μ = 20 Η : μ 20 ii) What is the probability of making a Type I error? iii) Which test statistic will you use? Circle your answer. Ꮓ T iv) x² Calculate the value of the test statistic for the quality control engineer's sample. v) Determine the critical value of the test statistic. Do not round or truncate. vi) Determine the P-value. vii) What is the conclusion? Accept Ho Reject Ho Fail to reject Ho Circle your response. viii) Does the sample seem to indicate that the average thickness of their chewing gum is not 20mm? Circle your response. YES NO

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