06 * A research assistant randomly selected 75 undergraduate students from the list of all studentsenrolled in the psychology-degree program at a large university. She asked each of the 75students, "How many minutes per day do you typically spend reading?" The mean reading timein the sample was 89 minutes, and the margin of error for this estimate was 4.28 minutes.Another research assistant intends to replicate the survey and will attempt to get a smallermargin of error. Which of the following samples will most likely result in a smaller margin oferror for the estimated mean time students in the psychology-degree program read per day?O40 randomly selected undergraduate psychology-degree program students40 randomly selected undergraduate students from all degree programs at the college300 randomly selected undergraduate psychology-degree program students300 randomly selected undergraduate students from all degree programs at the college

The researcher selected a sample of 75 undergraduate students from the list of all students in the…

Answered: *A research assistant randomly selected…

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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You have been hired by a consortium of local car dealers to conduct a survey about the purchases of new cars. If you want to estimate the percentage of car owners in Florida who purchased new cars, how many adults must you survey if you want 95% confidence that your sample percentage is in error by no more than three percentage points?
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You may need to use the appropriate appendix table or technology to answer this question. According to the Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is $32.48. A New England-based lifestyle magazine wants to determine if red wines of the same quality are less expensive in Providence, and it has collected prices for 65 randomly selected red wines of similar quality from wine stores throughout Providence. The mean and standard deviation for this sample are $30.15 and $12, respectively. (a) Develop appropriate hypotheses for a test to determine whether the sample data support the conclusion that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48. (Enter != for ≠ as needed.) H0: Ha: (b) Using the sample from the 65 bottles, what is the test statistic? (Round your answer to three decimal…
Which one would be the answer?
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