PROJECT. Refer to the Academy of Management Journal(December 2019) study of crowdfunding backers for anentrepreneur's project, Exercise 6.10 (p. 319). Recall that theresearchers collected data on the number of crowdfundingbackers for each in a sample of 1,460 entrepreneurial projectspitched on the internet via video. The data is saved in theBACKERS file. Again, define μ as the true mean number ofcrowdfunding backers for all entrepreneurial projects pitchedvia the internet. Suppose the researchers want to know if μdiffers from 200 using a statistical test of hypothesis. Use theaccompanying Minitab printout to conduct the test. What isyour conclusion? Explain why the 90% confidence interval(shown on the printout) will lead to the same conclusion. Descriptive StatisticsN1460 181.0 585.7Mean StDev SE Mean15.3μ: mean of BackersTestNull hypothesisAlternative hypothesisHo: μ = 200H₁: μ ‡ 20090% CI for μ(155.8, 206.2)

From the above data We are given that the 90% confidence interval for population mean is 155.8 to…

Answered: PROJECT. Refer to the Academy of…

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 accompanying dala gives the results of a survey on the number of hours spent online per week on a certain social networking website. Determine if the mean number of hours spent online per week is the same for males as it is for females. Assume that the population variances are unequal Click the icon to view the social media survey data. Is there sufficient evidence at the 0.05 level of significance that the mean number of hours spent online per week is the same for males as it is for females? Determine the null hypothesis, Ho, and the alternative hypothesis, H₁. Let females be population 1 and males be population 2. Survey data Ho H₁ (Type integers or decimals. Do not round.) Gender Female Hours online/week Gender Hours online/week D 4 Male Female 11 Male Female 9 Male Female 8 Male Female 7 Male Female 13 Male Female 2 Male Female 6 Male Female 2 Male Female 6 Male Female 7 Make Female 3 Male Female Female Female Female Female Female Female Female 46021337 Mole 0653T50478145 8…
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During a quality assurance check, the actual contents (in grams) of six containers of protein powder were recorded as 1524, 1526, 1499, 1512, 1532, and 1514. (a) Find the mean and the median of the contents. (b) The third value was incorrectly measured and is actually 1518. Find the mean and the median of the contents again. (c) Which measure of central tendency, the mean or the median, was affected more by the data entry error? (a) The mean is 1517.8. (Round to one decimal place as needed.) The median is 1519 (Type an integer or a decimal. Do not round.) (b) The mean is 1521 (Round to one decimal place as needed.) The median is 1521 (Type an integer or a decimal. Do not round.) (c) After correcting the error, the mean affected more. (Round to one decimal place as needed.) by and the median by The was

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