m Set 4Last year, 42% of business owners gave a holiday gift to their employees. A survey of business owners conducted thisyear indicates that 33% planned to provide a holiday gift to their employees. Suppose the survey results are based onA.D.a sample of 80 business owners.1.a. How many business owners in the survey planned to provide a holiday gift to their employees this year? Roundyour answer to the nearest whole number.3.b. Suppose the business owners in the sample do as they plan. Conduct a hypothesis test that can be used to4.determine whether the proportion of business owners providing holiday gifts had decreased from last year.5.State the hypotheses.6.Ho PSelect your answer0.427.Ha:PSelect your answer0.428.Compute the test statistic and p-value.9.z-value(to 2 decimals)0.p-value(to 4 decimals).c. Using a 0.05 level of significance, would you conclude that the proportion of business owners providing giftsdecreased?Select your answerHo. WeSelect your answer -v conclude that the proportion of business owners providinggifts has decreased from last year to this year,CAWhat is the smallest level of significance for which you could draw such a conclusion?(to 4 decimals)CS Scanned with CamScanner

Given: Sample size (n) = 80 Sample proportion p^= 0.33 Hypothesized proportion (p) = 0.42…

Answered: Last year, 42% of business owners gave…

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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520 students from UC Berkeley are surveyed about whether they are from Northern California, Southern California, Central California, or from another state or country. A researcher is interested in seeing if the proportion of students from each of the four regions are all the same for all UC Berkeley students. The table below shows the outcome of the survey. Fill in the expected frequencies. Frequencies of UCB Students' Home Towns Outcome Frequency Expected Frequency Northern California Southern California Central California Out of State 189 152 170 1000
a list of the over 2300 Henry Clay high School is compiled. from that list 250 names are randomly chosen and given a survey to complete. of those surveyed 72% said they intended to attend college after completing high school what would the 250 students surveyed would be an example of?
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You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 33% of air passengers prefer an aisle seat. n3= (Round up to the nearest integer.)
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. (Round up to the nearest integer.)
conducted this year indicates that 35% planned to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 85 business owners. a. How many business owners in the survey planned to provide a holiday gift to their employees this year? Round your answer to the nearest whole number. 30
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