0.674 0.8411.0361.2821.6451.9602.0542.3262.5762.8073.0913.291One-sided P.25.20.15.10.05.025.02.01.005.0025.001.0005Two-sided P.50.40.30.20.10.05.04.02.01.005.002.001 We take a random sample of 430 voters in Washington County and ask if will vote forcandidate x (We'll call her Ms. Peanut). Out of the 430 respondents, 246 say they plan tovote for Ms. Peanut and the rest say they will not. Do we have enough evidence to say thatMs. Peanut has more than 50% of the population of Washington County planning to vote forher (at alpha=.05)?a) Set up the null and alternative (one-sided) hypothesis for a one-sample z-test for thisproblem.b) Use the formula below to calculate the z-statistic. Remember that p-hat is the proportionfrom your sample and po is your hypothesized proportion, .50 (or 50% as a percentage).Showyour work or describe the process for calculating the z-statistic.c) What is the one-tailed critical value for a one-sided z-test? (see table below). Comparethis value to the z-statistic from part b. Can we reject the null at alpha=.05? How do youknow?p - P.z =P(1 - P.)

Answered: We take a random sample of 430 voters…

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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Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of those polled, 484 were in favor, 399 were opposed, and 121 were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 121 subjects who said that they were unsure, and use a 0.01 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about the politician's claim? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p=0.5 H₁: p > 0.5 B. Ho: p=0.5 H₁: p<0.5 C. Ho: p0.5 H₁: p=0.5 D. Ho: p=0.5 H₁: p0.5
Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of those polled, 481 were in favor, 402 were opposed, and 119 were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 119 subjects who said that they were unsure, and use a 0.01 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about the politician's claim? A) the test statistic B) p value C) conclusion
4. Suppose 1% of the people in California have a certain type of cancer. The state isconsidering testing everyone in the state for the cancer. A person with the cancerhas a 95% chance of testing positive. A person without the cancer has a 10%chance of testing positive. If a doctor observes a positive test, what is theprobability that a patient has the cancer??
A special-interest group has conducted a survey concerning a ban on hand guns. Note: A rifle is a gun, but it is not a hand gun. The survey yielded the following results for the 1000 households that responded. 275 own a hand gun.431 own a rifle.493 supported the ban on hand guns.140 own both a hand gun and a rifle.199 own a rifle but no hand gun and do not support the ban on hand guns.78 own a hand gun and support the ban on hand guns.51 own both a hand gun and a rifle and also support the ban on hand guns. Exercise (a) How many of the surveyed households only own a hand gun and do not support the ban on hand guns? Exercise (b) How many of the surveyed households do not own a gun and support the ban on hand guns? Exercise (c) How many of the surveyed households do not own a gun and do not support the ban on hand guns?
Two different blood pressure medicines are being compared to determine if the average reduction in blood pressure is the same for each medication. The goal of the study is to determine if the medications differ. Twenty men age 50-60 years old are selected for the study. Ten men are chosen at random to receive the first medication and the other 10 men receive the second medication. Each of the 20 men is monitored for one month to determine the change in blood pressure over that time. Minitab provides the 95% confidence interval for (mu1 - mu2) (2.63, 14.18) a. Interpret this 95% CI. b. What assumptions (be specific) are necessary to construct this CI?
The two-way table below shows teenage driver gender and whether or not the respondent had texted at least once while driving during the last thirty days. Teenage driver- Teenage driver- Male Female Texted at least once while driving during past 30 days. Had not texted at least once while 7 11 9 driving during the past 30 days. What percentage of the sample had texted at least once while driving in the past thirty days? O 37.5% O 62.5% De O 50% O 43.75%
Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of those polled, 488 were in favor, 399 were opposed, and 123 were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 123 subjects who said that they were unsure, and use a 0.10 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about the politician's claim? Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. A. Fail to…
Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of those polled, 481 were in favor, 396 were opposed, and 117 were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 117 subjects who said that they were unsure, and use a 0.05 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about the politician's claim?

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