Only about 17% of all people can wiggle their ears. Is thispercent higher for millionaires? Of the 381 millionairessurveyed, 80 could wiggle their ears. What can be concludedat the a= 0.05 level of significance?a. For this study, we should usez-test for a population proportionb. The null and alternative hypotheses would be:Ho: P.17(please enter a decimal)H₁: (p.17(Please enter a decimal)c. The test statistic (z)0.208 X (pleaseshow your answer to 3 decimal places.)d. The p-value = 0.418 X (Please show your answerto 3 decimal places.)e. The p-value is (s) af. Based on this, we should (rejectthe nullhypothesis.

Answered: Image /qna-images/answer/3686799a-81e1-4028-8b84-05566783c8f3.jpg

Answered: Only about 17% of all people can wiggle…

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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If you had a test statistic of z = -3.14 and did a left tail test, what would the p-value be? A. 0.9992 B. 0.05 C. 0.0008
need help with C
Please answer B, C, & D.
Solve the following problems. Use the steps in conducting hypothesis tests.Adults aged 18 years old and older were randomly selected for a survey on obesity. Adults are considered obese if their body mass index (BMI) is at least 30. The researchers wanted to determine if the proportion of women who are obese in the south is less than the proportion of southern men who are obese. The results are shown in Table. Test at the 1% level of significance. PS: The picture is below
Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
A researcher claims that the proportion of people who are right-handed is greater than 70%. To test this claim, a random sample of 600 people is taken and its determined that 410 people are right handed. The following is the setup for this hypothesis test: Ho: p-070 Ha: p> 0.70 Find the test statistic for this hypothesis test for a proportion. Round your answer to 2 decimal places. Provide your answer below Test Statistic-
Only about 17 of all people can wiggle their ears. Is this percent lower for millionaires? Of the 319 millionaires surveyed, 45 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: Ho: py (please enter a decimal) %3D H: p # (Please enter a decimal) c. The test statistic t v (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 s a f. Based on this, we should fail to reject g. Thus, the final conclusion is that... the null hypothesis. OThe data suggest the populaton proportion is significantly lower than 17% at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 17%. O The data suggest the population proportion is not significantly lower than 17% at a = 0.01, so there is…
Need help with parts C & D The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 191 Americans is administered the acupuncturists treatment and 25 report experiencing migraines.a. State Hypotheses to the scenario using the correct symbols. b. What is the sample proportion? (Round to 2 decimal places) ˆpp^= c. Suppose the P-value is calculated to be 0.0318What would your decision be for this test using α=α= 0.025? fail to reject the null accept the null reject the null d. Write a conclusion in terms of the acupuncturist's claim. Use the model provided by the instructor. Assume no errors were made.
A news article that you read stated that 52% of voters prefer the Democratic candidate. You think that the actual percent is larger. 149 of the 266 voters that you surveyed said that they prefer the Democratic candidate. What can be concluded at the 0.05 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: Ho: ? p μ Select an answer ≤ = < ≥ ≠ > (please enter a decimal) H1: ? p μ Select an answer > ≥ ≤ = < ≠ (Please enter a decimal) The test statistic ? z t = (please show your answer to 3 decimal places.)
Determine the P-value for a two-sided test with t = 2.85 and n=9 O a. 0.015 O b. 0.01 OC. 0.035 O d. 0.0175
4. Estimate the expectation of life at the age of 16 years by using the following data. Åge (in years) Expectation of life (years): : 10 15 20 25 30 35 35-4 32-3 29.2 26.0 23-2 20.4
please answer d, e, f f; accept, reject, fail to reject

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