You are conducting a study to see if the proportion of voterswho prefer the Democratic candidate is significantly largerthan 62% at a level of significance of a = 0.01. According toyour sample, 62 out of 93 potential voters prefer theDemocratic candidate.a. For this study, we should usez-test for a population proportionOFb. The null and alternative hypotheses would be:Ho: (penter a decimal)OFH₁: penter a decimal)0°OFc. The test statistic (zŵ) =your answer to 3 decimal places.)d. The p-value=to 4 decimal places.)e. The p-value isa(please(Please(please showf. Based on this, we should (fail to reject îhypothesis.(Please show your answerthe null

The question is about hypothesis testing.Given :Population proportion of voters who prefer…

Answered: You are conducting a study to see if…

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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Part d please!
QUESTION 12 Suppose we are interested in whether travelers departing to Bali have spent researching potential health risks. Let the population proportion be denoted by p and assume we are interested in testing whether there is evidence that more than 40% of travelers have researched potential health risks. Which of the following represents the correct set of hypotheses for this 1-tailed test? O a. Ho: 0 = 0.4 H: р 0.4 O d. Ho: p = 0.4 H1: p> 0.4
please solve question 19 and 21
Question 21 Only 11% of registered voters voted in the last election. Will voter participation change for the upcoming election? Of the 380 randomly selected registered voters surveyed, 61 of them will vote in the upcoming election. What can be concluded at the αα = 0.01 level of significance? A.)For this study, we should use Select an answer z-test for a population proportion t-test for a population mean B.)The null and alternative hypotheses would be: -H0:H0: ? p μ Select an answer < > ≠ = (please enter a decimal) -H1:H1: ? μ p Select an answer = ≠ < > (Please enter a decimal) c. )The test statistic ? z t = (please show your answer to 3 decimal places.)
pleaseee sir solve question 18 and 19
Consider the following hypotheses: Hg: H 2 160 НА: и < 160 The population is normally distributed. A sample produces the following observations: 152 138 151 144 151 142 Conduct the test at the 1% level of significance. (You may find it useful to reference the appropriate table: z table or table) a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.) Test statistic
• Question 16 A news article that you read stated that 53% of voters prefer the Democratic candidate. You think that the actual percent is different. 122 of the 272 voters that you surveyed said that they prefer the Democratic candidate. What can be concluded at the 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v| Select an answerv (please enter a decimal) H1: |?vSeect an answerV (Please enter a decimal) c. The test statistic ?v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ?v a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population proportion is not significantly different 53% at a = 0.10, so there is not sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different 53%. O The data…
A researcher wanted to determine if car preference was related to city of birth. So, she polled 200 people who were born in either Detroit or Tokyo and asked them which car manufacturer they preferred. The data are below. Conduct the appropriate χ2 statistical test using an alpha level of .05 and the eight steps of hypothesis testing. (NOTE: You do not have to use the correction equation if df=1) Chevy Toyota Detroit 75 25 Tokyo 15 85
I need help with stats, section 7.2 and 7.3, please help with TI-84 calculator commands Test the claim about the population mean, μ, at the given level of significance using the given sample statistics. Claim: μ=40; α=0.01; σ=3.17. Sample statistics: x=38.1, n=72 Identify the null and alternative hypotheses. Write out the correct null and alternative hypotheses. Calculate the standardized test statistic: The standardized test statistic is ________________ (round to 2 decimal places as needed) Determin the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. (round to 2 decimal places as needed) a. the critical value is ______________ b. the critical values are + _ ___________ Determine the outcome and conclusion of the test. Choose the correct answer below. A. fail to reject Ho. AT the 1% significane level, there is not enough evidence to reject the claim. B. fail to reject Ho. At the 1% significance…
please solve question 15 and 17
● Question 3 Only about 10% of all people can wiggle their ears. Is this percent different for millionaires? Of the 379 millionaires surveyed, 30 could wiggle their ears. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: 80 F3 Ho: ? Select an answer ✓ H₁: ? Select an answer ✓ c. The test statistic ? ✓ = d. The p-value = e. The p-value is ? ✓ a f. Based on this, we should [Select an answer the null hypothesis. g. Thus, the final conclusion is that ... Submit Question (please enter a decimal) O The data suggest the population proportion is not significantly different from 10% at a = 0.01, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is different from 10%. $ (Please enter a decimal) O The data suggest the populaton proportion is significantly different from 10% at a = 0.01, so there is…

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