In a newspaper's survey of 486 people, 53.7% said that we should replace passwords with biometric security, such as fingerprints. The accompanying Statdisk display results from a test ofthe claim that half of us say that we should replace passwords with biometric security. Use the normal distribution as an approximation to the binomial distribution. Use the display and a0.10 significance level to complete parts (a) through (e).Sample proportion: 0.5370370Test Statistic, z: 1.6330Critical z: + 1.6449P-value: 0.1025P-value = 0.102(Round to three decimal places as needed.)d. What is the null hypothesis, and what do you conclude about it?The null hypothesis is Ho: p V, where p denotes the population proportion of people who say that we should replace passwords with biometric security.V the nullhypothesis.(Type an integer or a decimal. Do not round.)

In a newspaper's survey of 486 people, 53.7% said that we should replace passwords with biometric…

Answered: P-value = 0.102 (Round to three decimal…

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 commercial for the new Meat Man Barbecue claims that it takes 14 minutes for assembly. A consumer advocate thinks that the assembly time is lower than 14 minutes. The advocate surveyed 12 randomly selected people who purchased the Meat Man Barbecue and found that their average time was 13.5 minutes. The standard deviation for this survey group was 2.1 minutes. What can be concluded at the the a = 0.01 level of significance level of significance? You may assume the data are normally distributed.
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.7 versus H1: p>0.7 n=200; x=150; α=0.05 Click here to view page 1 of the table. LOADING... Click here to view page 2 of the table. LOADING... Calculate the test statistic, z0. z0=nothing (Round to two decimal places as needed.) Identify the P-value. P-value=nothing (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. A. Do not reject the null hypothesis, because the P-value is less than α. B. Do not reject the null hypothesis, because the P-value is greater than α. C. Reject the null hypothesis, because the P-value is greater than α. D. Reject the null hypothesis, because the P-value is less than α.
The average wait time to get seated at a popular restaurant in the city on a Friday night is 13 minutes. Is the mean wait time less for men who wear a tie? Wait times for 16 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 11, 14, 14, 14, 13, 13, 10, 11, 10, 10, 12, 10, 12, 14, 13, 11 What can be concluded at the the a = 0.05 level of significance level of significance?
5 a. Perform a Chi-square test Goodness of Fit test on following data to see whether Republicans and Democrats are equally represented in the sample. Report the resulting chi-square number. What is your political affiliation? Republican 102 Democrat 98 200 = QUESTION 5 B Given the chi-square number for the question above, find the associated p-value and indicate the conclusion with regard to H0/H1. We accept H1. We accept H0. We do not reject H1. We do not reject H0.
Using the accompanying New Account Processing data, perform chi-square tests for independence to determine if certification is independent of gender and if certification is independent of having prior industry background. Click the icon to view the New Account Processing data. - x Find the hypotheses for the chi-square test for independence to determine if certification is independent of gender. H: Certification and Gender are independent New Account Processing Data H₁ Certification and Gender are dependent Perform the chi-square test for independence to determine if certification is independent of gender. Compute the chi-square statistic. (Type an integer or decimal rounded to two decimal places as needed.) Gender Certified Prior Background M Y F Y Y M Y N N Y M F N Y Y Y Y Y Y N N F N Y M Y N M Y N F N Y N N F N Y M Y Y M N Y M N N M N Y Print Done
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P-value is -.055 You are asked to make a decision about whether to reject the null hypothesis that the population value of gamma equals 0 (i.e., that there is no ordinary association in the population between frequency of prayer and health). If alpha = 0.05 and you use a non-directional alternative hypothesis, which of the following is true?) A. Since the p-value is larger than alpha, you do not reject the null hypothesis B. Since the p-value is less than alpha, you do not reject the null hypothesis C. Since the p-value is larger than alpha, you reject the null hypothesis. D. Since the p-value is less than alpha, you reject the null hypothesis
Ho at the 0.02 level of significance? Do you reject or fail to reject and H,: u=25, H,:4#25 P = 0.028 25, H: u +25 Given O Not sufficient information to decide Ho Reject reject H 4. Fail to reject
q6.2 I want to know the answer and detail step by step Thank you
Find the null hypothesis statement. The farmer harvests 4 tonnes of crops in the warehouse in a month. O P S 27
State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t= 1.584 (b) t=0 (c) t= - 1.526 (d) t= - 1.604 to = - 1.558 (a) For t= 1.584, should you reject or fail to reject the null hypothesis? O A. Fail to reject Ho, because t> - 1.558. O B. Reject Ho, because t> - 1.558. O C. Reject Ho, because t - 1.558. O B. Fail to reject Ho, because t - 1.558. (c) For t= - 1.526, should you reject or fail to reject the null hypothesis? O A. Reject Ho, because t - 1.558. O C. Fail to reject Ho, because t> - 1.558. O D. Fail to reject Hn, because t< - 1.558.

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