With 95% confidence, we can say that someone who actively downloads musichas between 725 and 755 songs downloaded on their electronic device.O With 95% confidence, we can say that someone who actively downloads musichas between 714 and 766 songs downloaded on their electronic device.With 95% confidence, we can say that someone who actively downloads musichas between 739 and 741 songs downloaded on their electronic device.O With 95% confidence, we can say that someone who actively downloads musichas between 738 and 742 songs downloaded on their electronic device. Executives at a music label surveyed 125 people who actively download music andfound that the listeners have an average of 740 songs downloaded to theirelectronic devices. Assume a standard deviation of 86 songs. Find a 95% confidenceinterval for the amount of songs on the electronic device of someone who activelydownloads music.Construct the confidence interval.

Answered: Image /qna-images/answer/60d77f08-bdbf-44fe-9555-cc0921676e77.jpg

Answered: Executives at a music label surveyed…

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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Similar questions

You are told that a set of data includes one score which is 0.8.The standard deviation for the set is 0. Can you give the mean of the set and say anything else about the six other scores in the set?
Please answer B, C, & D.
Suppose that the mean score of a class of 34 students was 78. The 17 male students in the class had a mean score of 62. What was the mean score for the 17 female students?
Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
The best male long jumpers for State College since 1973 have averaged a jump of 263.0 inches with a standard deviation of 14.0 inches. The best female long jumpers have averaged 201.2 inches with a standard deviation of 7.7 inches. This year Joey jumped 283 inches and his sister, Carla, jumped 221 inches. Both are State College students. Which athlete had the more impressive performance? Justify your response appropriately, but briefly.
Find the value of the standardized test statistic.
A business school dean in Ohio wants to know if graduates who completed an internship during their undergraduate years earn more than business undergraduates who do not complete an internship while in college. Based on national survey from 1,500 business alumni with less than six years of work experience, they earn on average $50,970 with a standard deviation of $12,976. Business alumni from the Ohio school who completed internships on average earned $53,497. The dean wants you to be 96% confident in your results. a. State in statistical terms the null and alternative hypotheses. b. Determine the appropriate test statistic (z or t). c. Determine the critical value(s). d. Compute the test statistic. e. Make a decision on the hypotheses. (which hypothesis is correct?) f. Determine the p-value for the test statistic.
In a study of Ridge View's boys' basketball team, the average height is 68 inches and standard deviation is 4 inches. Find the probabilty. a boy is over 78 inches
Adrianna is trying to figure out the sample size for the data set she wants to collect. She thinks the population standard deviation could be as low as 120 or as high as 136. Explain to Adrianna the impact standard deviation will have on her sample size.

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