Only about 12% of all people can wiggle their ears. Is this percent lower for millionaires? Of the 368 millionaires surveyed, 37 could wiggle their ears. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use z-test for a population proportion v b. The null and alternative hypotheses would be: Ho: pv 0.12 (please enter a decimal) H1: p v> 0.12 (Please enter a decimal) c. The test statistic z 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 > v a f. Based on this, we should fail to reject g. Thus, the final conclusion is that the null hypothesis. ... O The data suggest the populaton proportion is significantly lower than 12% at a = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 12%. O The data suggest the population proportion is not significantly lower than 12% at a = 0.05, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 12%. O The data suggest the population proportion is not significantly lower than 12% at a = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is equal to 12%.
Only about 12% of all people can wiggle their ears. Is this percent lower for millionaires? Of the 368 millionaires surveyed, 37 could wiggle their ears. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use z-test for a population proportion v b. The null and alternative hypotheses would be: Ho: pv 0.12 (please enter a decimal) H1: p v> 0.12 (Please enter a decimal) c. The test statistic z 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 > v a f. Based on this, we should fail to reject g. Thus, the final conclusion is that the null hypothesis. ... O The data suggest the populaton proportion is significantly lower than 12% at a = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 12%. O The data suggest the population proportion is not significantly lower than 12% at a = 0.05, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 12%. O The data suggest the population proportion is not significantly lower than 12% at a = 0.05, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is equal to 12%.
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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topic is Hypothesis test of proportions. I have already answered most of the question please help with the rest whic is question D, F and G. Thank you
Transcribed Image Text:Only about 12% of all people can wiggle their ears. Is this percent lower for millionaires? Of the 368
millionaires surveyed, 37 could wiggle their ears. What can be concluded at the a = 0.05 level of
significance?
a. For this study, we should use z-test for a population proportion v
b. The null and alternative hypotheses would be:
Ho: pv
0.12
(please enter a decimal)
%3D
H1:
0.12
(Please enter a decimal)
ру
>
c. The test statistic z 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 > va
f. Based on this, we should fail to reject
g. Thus, the final conclusion is that ...
the null hypothesis.
O The data suggest the populaton proportion is significantly lower than 12% at a = 0.05, so there
is statistically significant evidence to conclude that the population proportion of millionaires
who can wiggle their ears is lower than 12%.
O The data suggest the population proportion is not significantly lower than 12% at a = 0.05, so
there is statistically insignificant evidence to conclude that the population proportion of
millionaires who can wiggle their ears is lower than 12%.
O The data suggest the population proportion is not significantly lower than 12% at a = 0.05, so
there is statistically significant evidence to conclude that the population proportion of
millionaires who can wiggle their ears is equal to 12%.
%3D
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