a.) List the null and alternative hypothesisb.) Find test statistic and degrees of freedom c.) Find the p-value and our conclusion at a 5% significance level Random samples of people ages 15-24 and 25-34 were asked about their preferredmethod of (remote) communication with friends. The respondents were asked toselect one of the methods from the following list: cell phone, instant message, e-mail,other. Below are the test results from R:Preferred Communication MethodInstantRowAgeCell PhoneMessageE-mailOtherTotal15-244840710025-3441301514100Column Total89702021200Pearson's Chi-squared testdata:tb1X-squared = 9.3125,

The total number of respondents is 200.

Answered: a.) List the null and alternative…

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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A. Identify the test statistic test B. Identify the P-value for this hypothesis test C. If P-value is reject H0 or fail to reject H0 D. Do the results support the belief that 50.8% of newborn babies are boys?
A. Determine test statistic B. Determine critical value C. Reject H0 or Fail to reject H0
Test the claim that the proportion of people who own cats is larger than 30% at the 0.025 significance level.The null and alternative hypothesis would be: H0:p=0.3H0:p=0.3H1:p≠0.3H1:p≠0.3 H0:p≤0.3H0:p≤0.3H1:p>0.3H1:p>0.3 H0:μ=0.3H0:μ=0.3H1:μ≠0.3H1:μ≠0.3 H0:μ≤0.3H0:μ≤0.3H1:μ>0.3H1:μ>0.3 H0:μ≥0.3H0:μ≥0.3H1:μ<0.3H1:μ<0.3 H0:p≥0.3H0:p≥0.3H1:p<0.3H1:p<0.3 The test is right-tailed left-tailed two-tailed Based on a sample of 800 people, 32% owned catsThe test statistic is: (to 2 decimals)The p-value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
The last part of the question, the options are: sufficient OR insufficient; support OR do not support. Thx!
Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.05 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation? cents portion of check 0-24. 25-49. 50-74. 75-99 number 32. 20. 27. 21
Use the following ANOVA table for regression to answer the questions. Analysis of Variance Source DF SS MS F P Regression 3377.5 3377.5 18.1 0.000 Residual Error 174 32468.4 186.6 Total 175 35845.9 Give the F-statistic and p-value. Enter the exact answers. The F-statistic is i The p-value is i eTextbook and Media Hint 63°F Cla Type here to search
Test the claim that the mean GPA of Orange Coast students is significantly different than the mean GPA of Coastline students at the 0.1 significance level.The null and alternative hypothesis would be: H0:pO≤pCH0:pO≤pCH1:pO>pCH1:pO>pC H0:pO=pCH0:pO=pCH1:pO≠pCH1:pO≠pC H0:pO≥pCH0:pO≥pCH1:pO<pCH1:pO<pC H0:μO=μCH0:μO=μCH1:μO≠μCH1:μO≠μC H0:μO≥μCH0:μO≥μCH1:μO<μCH1:μO<μC H0:μO≤μCH0:μO≤μCH1:μO>μCH1:μO>μC The test is: left-tailed right-tailed two-tailed The sample consisted of 80 Orange Coast students, with a sample mean GPA of 2.73 and a standard deviation of 0.08, and 80 Coastline students, with a sample mean GPA of 2.68 and a standard deviation of 0.05.The test statistic is: (to 2 decimals)The p-value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.10 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation? Cents portion of check 0-24 25-49 50-74 75-99 Number 35 22 19 24 Click here to view the chi-square distribution table.
Test the claim that the proportion of people who own cats is larger than 70% at the 0.10 significance level.The null and alternative hypothesis would be: H0:p≤0.7H0:p≤0.7H1:p>0.7H1:p>0.7 H0:p=0.7H0:p=0.7H1:p≠0.7H1:p≠0.7 H0:μ≥0.7H0:μ≥0.7H1:μ<0.7H1:μ<0.7 H0:μ≤0.7H0:μ≤0.7H1:μ>0.7H1:μ>0.7 H0:μ=0.7H0:μ=0.7H1:μ≠0.7H1:μ≠0.7 H0:p≥0.7H0:p≥0.7H1:p<0.7H1:p<0.7 The test is: two-tailed left-tailed right-tailed Based on a sample of 200 people, 74% owned catsThe p-value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.05 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation? Cents portion of check 0-24 25-49 50-74 75-99 Number 63 15 13 9 The test statistic is enter your response here. (Round to three decimal places as needed.)
Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.10 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation? Cents portion of check 0-24 25-49 50-74 75-99 Number 54 18 14 14 The test statistic is? (Round to three decimal places as needed.) The critical value is? (Round to three decimal places as needed.) State the conclusion.
Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.05 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation? Cents portion of check 0-24 25-49 50-74 75-99 Number 35 21 19 25

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a.) List the null and alternative hypothesis b.) Find test statistic and degrees of freedom c.) Find the p-value and our conclusion at a 5% significance level