Explain how to find the critical values for a 1-distribution.Click the icon to view the t-distribution tableGive the first step. Choose the correct answer belowOA Identify the level of significance and the degrees of freedom, d.f.an.1-a2OB. Identify the level of significance a and the degrees of freedom, df. -n-1.OC. Identify the level of significance and the degrees of freedom, d.f. -n-1.을OD. Identify the level of significance 1-a and the degrees of freedom, d.f. n.

Objective of this question is that to choose the correct option.

Answered: find the critical values for a…

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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The average American gets a haircut every 43 days. Is the average different for college students? The data below shows the results of a survey of 11 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 32, 46, 49, 45, 50, 49, 43, 45, 38, 46, 42 What can be concluded at the the a =0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Họ: ? Select an answer v H. Select an answer Y C. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value - (Please show your answer to 3 decimal places.) e. The p-value is 2 f. Based on this, we should Select an answer the null hypothesis, g. Thus, the final conclusion is that, The data suggest the populaton mean is significantly different from 43 ata = 0.01, so there is fficient evidence tr conrlide that -he nonulation.
Describe the indicated sampling distribution model. Statistics from a weather center indicate that a certain city receives an average of 14 inches of snow each year, with a standard deviation of 5 inches. Assume that a Normal model applies. A student lives in this city for 7 years. Let y represent the mean amount of snow for those 7 years. Describe the sampling distribution model of this sample mean. O A. N(14,0.71) O B. N(14, 5) OC. N(14, 1.89) OD. Binom(14, 5) O E. There is not enough information to describe the sampling distribution.
Explain how to find the critical values for a t-distribution. Click the icon to view the t-distribution table. Give the first step. Choose the correct answer below. O A. Identify the level of significance 1 - x and the degrees of freedom, d.f. = n. O B. Identify the level of significance & and the degrees of freedom, d.f. = n - 1. 1-α OC. Identify the level of significance and the degrees of freedom, d.f. = n. 2 O D. Identify the level of significance and the degrees of freedom, d.f. = n - 1. Find the critical value(s) using the given t-distribution table in the row with the correct degrees of freedom. If the hypothesis test is left-tailed, use the column with a sign. If the hypothesis test is right-tailed, use the If the hypothesis test is two-tailed, use the column with a column with a sign. sign.
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Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 74.4 96 83.2 65 63.9 64.3 74.4 69 68.4 88 Test grades are believed to be normally distributed.Use a significance level of 5%. State the alternative hypothesis: HA:HA: μ>65μ>65 μ<65μ<65 μ≠65μ≠65 State the mean of the sample: (Round to two decimal places.) State the standard error of the sample means: (Round to four decimal places.) State the test statistic: t=t= (Round to four decimal places.) State the p-value: (Round to four decimal places.) Decision: Reject the null hypothesis. Do not reject the null hypothesis.
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Explain how to find the critical values for a t-distribution. LOADING... Click the icon to view the t-distribution table. Question content area bottom Part 1 Give the first step. Choose the correct answer below. A. Identify the level of significance 1−α and the degrees of freedom, d.f.=n. B. Identify the level of significance α and the degrees of freedom, d.f.=n−1. C. Identify the level of significance α2 and the degrees of freedom, d.f.=n−1. D. Identify the level of significance 1−α2 and the degrees of freedom, df=n
We want to determine if the percent of home runs hit by left-handed batters is greater than that of right-handed batters. What type of test should be used? OTwo sample z-test OTwo sample t-test O Single sample z-test Single sample t-test
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