Based on information from a previous study, r₁39 people out of a random sample of n, 104 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of m₂ 104 adult Americans who did attend college, r₂- 49 claim that they believe in extraterrestrials.Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend college? Use a = 0.01.LAUSE SALT(a) What is the level of significance?0.01✓State the null and alternate hypotheses.O Ho: P1P₂i H₁: P1 P₂Hoi P1P₂i H₁: P₁ > P₂O Ho: P1 O Ho: P1

Null hypothesis:Null hypothesis is the statement about parameter of population.Alternative…

Answered: Based on information from a previous…

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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In a previous poll, 3,1% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 1199 adults with children under the age of 18 were selected at random, and 350 of those 1199 adults reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the α = 0.05 significance level > 10 and the sample size is less than 5% of the population size, and the adults in the sample Because npo (1-Po) = 256.5 hypothesis are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? ₹ 31 Ho р 31 versus H₁: = р (Type integers or decimals. Do not round.) Find the test statistic, Zo Zo= (Round to two decimal places as needed) were selected at random, all of the requirements for testing the
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The National Academy of Science reported that 33 % of research in mathematics is published by US authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 33 %. He has no indication of whether the percentage has increased or decreased since that time. He surveys a simple random sample of 280 recent articles published by reputable mathematics research journals and finds that 108 of these articles have US authors. Does this evidence support the mathematics chairperson's claim that the percentage is no longer 33 % ? Use a 0.01 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho :p = 0.33 Ha P O # ο ο ο HAV O < 0.33 Tables Keypad Keyboard Shortcuts
February 12, 2009 marked the 20oth anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 randomly selected American adults about their education level and their beliefs about the theory of evolution. In their sample, 325 of their respondents had some college education and 228 were college graduates. Among the 325 respondents with some college education, 133 said that they believed in the theory of evolution. Among the 228 respondents who were college graduates, 121 said that they believed in the theory of evolution. Construct a 90% confidence interval for the difference between the proportions of college graduates and individuals with some college who believe in the theory of evolution. Round your sample proportions and margin of error to three decimal places. O 0.012 to 0.232 O 0.038 to 0.206 O 0.052 to 0.192 O 0.079 to 0.165 Save for Later Attempts: 0 of 1 used Submit Answer
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