A researcher is wondering whether the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is Ho P=0.26 and the alternative hypothesis is H₂ p>0.26. The researcher collected data from a random sample of 75 adults in the region of interest. To continue the study into the drinking habits of adults, the researcher decides to collect data from adults working in "blue collar" jobs to see whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is Ho: P=0.26 and the alternative hypothesis is H₂ p > 0.26. The researcher collected data from a random sample of 90 adults with "blue collar" jobs of which 30 stated that they drank once a week or less in the last month. Assume that the conditions that must be met in order for us to use the N(0, 1) distribution as the sampling distribution are satisfied. Find the values of the sample proportion, p, the test statistic, and the p-value associated with the test statistic Round all values to the nearest thousandth O A. p=0.289, z = -0 829, p-value = 0.407 OB. p=0.333, z=1.586, p-value = 0.056 O c. p=0.333, z=0.067, p-value = 0.946 OD. p=0.667, z = 8.795, p-value=0.000* G
A researcher is wondering whether the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is Ho P=0.26 and the alternative hypothesis is H₂ p>0.26. The researcher collected data from a random sample of 75 adults in the region of interest. To continue the study into the drinking habits of adults, the researcher decides to collect data from adults working in "blue collar" jobs to see whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is Ho: P=0.26 and the alternative hypothesis is H₂ p > 0.26. The researcher collected data from a random sample of 90 adults with "blue collar" jobs of which 30 stated that they drank once a week or less in the last month. Assume that the conditions that must be met in order for us to use the N(0, 1) distribution as the sampling distribution are satisfied. Find the values of the sample proportion, p, the test statistic, and the p-value associated with the test statistic Round all values to the nearest thousandth O A. p=0.289, z = -0 829, p-value = 0.407 OB. p=0.333, z=1.586, p-value = 0.056 O c. p=0.333, z=0.067, p-value = 0.946 OD. p=0.667, z = 8.795, p-value=0.000* G
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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Transcribed Image Text:A researcher is wondering whether the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of
adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is Ho: p = 0.26 and the alternative hypothesis is H₂ p > 0.26. The researcher collected
data from a random sample of 75 adults in the region of interest. To continue the study into the drinking habits of adults, the researcher decides to collect data from adults working in "blue collar" jobs to see
whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is Ho: p=0.26 and the alternative hypothesis is H₂ p > 0.26. The researcher collected data from a
random sample of 90 adults with "blue collar" jobs of which 30 stated that they drank once a week or less in the last month. Assume that the conditions that must be met in order for us to use the N(0, 1)
distribution as the sampling distribution are satisfied. Find the values of the sample proportion, p, the test statistic, and the p-value associated with the test statistic. Round all values to the nearest thousandth
O A. p=0.289, z = -0.829, p-value = 0.407
B. p=0.333, z = 1.586, p-value = 0.056
O c. p=0.333, z = 0.067, p-value = 0.946
OD. p=0.667, z = 8.795, p-value = 0.000*
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