The mayor of Lawrenceville indicated in a news interview that the percentage of students at GGC studying business is at least 30%. For your marketing project, you intend to test this claim. The correct setup of a hypothesis test for this situation is _____.a) $ H_0: p \leq .30 $ $ H_a: p > .30 $b) $ H_0: p > .30 $ $ H_a: p \leq .30 $c) $ H_0: p \geq .30 $ $ H_a: p < .30 $d) $ H_0: p < .30 $ $ H_a: p \geq .30 $

GivenThe claim isThe mayor of Lawrenceville indicated in a news interview that the percentageof…

Answered: The mayor of Lawrenceville indicated in…

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 recent survey of 90 randomly selected college students, 59 said that they believe in the existence of extraterrestrial life. a) Find p, the sample proportion that believes that there is extraterrestrial life. (Round your answers to three decimal places). = b) A recent report suggests the proportion of general US population who believe in extraterrestrial life is 0.47. Choose the appropriate null and alternative hypothesis that tests whether the proport of college students who believe in extraterrestrial life in greater than the general population? O Ho: P = 0.47 H₂: P = 0.47 Ho: P = 0.47 H₂: p > 0.47 O Ho: P = 0.47 H₂: > > 0.47 Ho: μ = 0.47 H₂:μ ‡ 0.47 Ho: x = 0.47 H₂: x > 0.47 c) Calculate the z test statistic and p-value. (Round the test statistic to two decimal places and the p-value four decimal places). Z = p-value d) Based on the p-value, give a conclusion in terms of the alternative. There is no evidence that the proportion of college students who believe in…
17. Know the hypotheses and the critical region for a directional (one-tailed) hypothesis test. Module 5 #31 When the critical religion falls entirely in the left-hand tail, is the hypothesis test one-tailed or two-tailed?
I want full answers with conclusions for each part PLZ write with clear writing and don't copy the answer from other solution
If a hypothesis is not rejected at the 5% level of significance, it a) will always be rejected at the 1% level O b) will also not be rejected at the 1% level O c) will sometimes be rejected at the 1% level d) None of these alternatives is correct.
7) The mean IQ of statistics teachers is greater than 120. Identify the type I and type II errors for the hypothesis test of this claim. 7)
Help with nr 11
Pavan
Desire to get intellectual joy of doing some creative work is motivates the some to do researches. Select one: O True O False Discussions with colleagues and experts about the problem leads to developing hypotheses. Select one: O True O False
A company is criticized because only 14 of 42 executives at a local branch are women. The company explains that although this proportion is lower than it might wish, it's not a surprising value given that only 40% of all its employees are women. The company has more than 500 executives worldwide. Test an appropriate hypothesis and state the conclusion. A) Determine the hypotheses for this test. (The proportion of female executives in the entire company is denoted by p.) B) Calculate the test statistic. z= (Round to two decimal places as needed.) Part 3 Find the P-value. P-value= (Round to three decimal places as needed.) Part 4 State the conclusion of the test. Choose the correct answer below. A. Because the P-value is low, fail to reject H0. These data show that the proportion of women executives in the company is less than the 40% of women in the company in general. B. Because the P-value is low, reject H0. These data show that the…
If the researcher made a Type 2 error, which of the following best describes what the researcher found and what they should have found had they not made the error? a) The researcher found that the new stress task increases stress hormones but they should have found that the stress task does not lead to an increase in stress hormones. OR b) The researcher found that the new stress task does not lead to an increase in stress hormones but they should have found that the stress task does increase stress hormones.
At the halftime of the Super Bowl in 1981. Schlitz brewing company collected 100 beer drinkers who stated that they preferred a competing beer, for instance Michelob. Assume that the typical beer drinker off the street cannot tell Schlitz from competing beer brands such as Budweiser, Michelob, or Miller. (I think it couldn't be true for a very sensitive taster but it is not too strong assumption here.) The experiment resulted in about 50 blind tasters chose Schlitz even if they stated that they preferred a competing beer. Michelob.
A company plans to develop new residential projects in an area of a city. The project would consists of houses to be sold at prices affordable to those earning not less than $400,000 per year. Suppose the company has the resources to conduct an income survey in the city. Suggest, state your assumptions and explain how the company may be able to obtain an indication of the feasibility of the project using hypothesis testing as a tool

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