Jonsenbquestion: i point(s) poSsIbleThree years ago, the mean price of an existing single-family home was $243,732. A real estate broker believes that existing home prices in her neighborhood are lower.(a) State the null and alternative hypotheses in words.(b) State the null and alternative hypotheses symbolically.(c) Explain what it would mean to make a Type I error.(d) Explain what it would mean to make a Type Il error.B. The mean price of a single family home in the broker's neighborhood is different from $243,732.OC. The mean price of a single family home in any neighborhood is $243,732.O D. The mean price of a single family home in the broker's neighborhood is less than $243,732.State the alternative hypothesis in words. Choose the correct answer below.O A. The mean price of a single family home in the broker's neighborhood is less than $243,732.O B. The mean price of a single family home in any neighborhood is $243,732.OC. The mean price of a single family home in the broker's neighborhood is $243,732.O D. The mean price of a single family home in the broker's neighborhood is different from $243,732.(b) State the hypotheses symbolically.Ho:= $ 243732< $ 243732(Type integers or decimals. Do not round.)(c) What would it mean to make a Type I error?The brokerrejectsthe hypothesis that the mean price isequal to$, when the true mean price isequal to(Type integers or decimals. Do not round.)(d) What would it mean to make a Type Il error?$, when the true mean price isless thanThe broker fails to reject the hypothesis that the mean price is(Type integers or decimals. Do not round.)less than(1,1)MoreMacBook ProG Search or type URLesc

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Answered: a) State the null and alternative…

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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The researcher was interested in examining whether there was a significant difference between (a) the placebo vs. the drug conditions (include all drugs here), (b) the old drugs vs. the new drugs, and (c) the new drugs (Drug C vs. Drug D). The question is: State the null and alternative hypotheses for each of the contrasts below.
When conducting a hypothesis test, we hope to avoid commiting a type 1 error, which is: 1. Not as bad as committing a type 2 error 2. rejecting a null hypothesis when it is true 3. rejecting the alternate hypothesis when it is true 4. accepting the null hypothesis when the alternate hypothesis is true
A Type I error is defined as a. rejecting a null hypothesis when it is in fact true b. rejecting a false null hypothesis c. failing to reject a true null hypothesis d. failing to reject a false null hypothesis
Bill, a psychologist, has developed a new aptitude test. He was able to show (through a somewhat dubious study) that 60% of the public passed the test. A second psychologist, Tamera, wants to recreate this study. She believes the actual percentage is less than 60%. A random sample of 320 people took the test, and 182 passed. a) State the null and altemate hypotheses to test the claim that the actual percentage is different than 60%. Ho: p = HA: p# b) What is the point estimate for the proportion of the public that passed the test? Point Estimate = c) Using a standard error of 0.0274, what is the test statistic? Test Statistic = d) Compute the p-value. The p-value- The p-value « .001 e) Should Tamera reject or fail to reject the null hypothesis?
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Determine both Type I and Type Il errors for the following scenario: Assume a null hypothesis that states the percentage of adults with jobs is at least 88%. (a) Identify the Type I error from these four statementss. O Reject the null hypothesis that the percentage of adults who have jobs is at least 88% when that percentage is actually less than 88% ONot to reject the null hypothesis that the percentage of adults who have jobs is at least 88% when the percentage is actually at least 88% O Reject the null hypothesis that the percentage of adults who have jobs is at least 88% when the percentage is actually at least 88% ONot to reject the null hypothesis that the percentage of adults who have jobs is at least 88% when that percentage is actually less than 88% (b) Identify the Type II error from these four statements. O Reject the null hypothesis that the percentage of adults who have jobs is at least 88% when the percentage is actually at least 88% O Reject the null hypothesiis that the…
A cognitive scientist wants to test whether there is any difference in puzzle-solving abilities between crows and sparrows. Independent samples of eleven crows and fourteen sparrows were chosen at random. The crows took a mean of 34 minutes to solve a certain puzzle, with a standard deviation of 5.1 minutes. The sparrows took a mean of 35 minutes to solve the same puzzle, with a standard deviation of 5.9 minutes. Assume that the two populations of completion times are normally distributed, and that the population variances are equal. Can we conclude, at the 0.05 level of significance, that u,, the mean puzzle-solving times for crows, is less than u,, the mean puzzle-solving times for sparrows? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.)
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Examine the given statement, then express the null hypothesis Ho and the alternative hypothesis H1 in the symbolic form: (1) The mean weight of women who won a beauty pageant is equal to 120 lbs. (2) There are more then 97% of LBCC students have computers. (3( There are at least 50% of LBCC students have a job while studying>
True or false A type I error is defined as rejecting the null hypothesis when the null hypothesis is false
Number...D...
2. A Type Il error is committed when A. we reject a null hypothesis that is true. B. we retain a null hypothesis that is true. C. we reject a null hypothesis that is false. D. we retain a null hypothesis that is false.

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a) State the null and alternative hypotheses in words. b) State the null and alternative hypotheses symbolically. (c) Explain what it would mean to make a Type I error. (d) Explain what it would mean to make a Type Il error.