QUESTION 5In a burger shop, a sample of 78 days , was taken to study the daily sales, It was found that the mean daily sales are (m) with a standard deviation is (d).The confidence interval for the population mean is computed, the upper confidence limit is 47, and the lower confidence limit is 13Calculate the value of m?(Round answer to two decimal places ex. 2.09)

GivenUpper confidence limit = 47Lower confidence limit = 13sample size(n)=78

Answered: In a burger shop, a sample of 78 days ,…

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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From a sample of 37 graduate students, the mean number of months of work experience prior to entering an MBA program was 34.44. The national standard deviation is known to be 20 months. What is a 99% confidence interval for the population mean? A 99% confidence interval for the population mean is (Use ascending order. Round to two decimal places as needed.)
A survey taken several years ago found that the average time a person reading a newspaper was 10.8mins. The standard deviation was 3mins. To see whether the average time changed since the newspapers format was revised, the editor survered 36 individuals. The average time the 36 people spent reading the paper was 12.2mins. At $=0.02, is there a change in the average time an individual spends reading the paper ? Find the 98% confidence interval of the mean.
A random sample of 30 adult bottlenose dolphin was found to have a mean weight of 550 pounds with a standard deviation of 50 pounds. What will be the range of values for the estimate with a 90% confidence level? In answer box, provide only the high value. Round the answer to 2 decimal places.
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A statistics teacher taught a large introductory statistics class, with 500 students having enrolled over many years. The mean score over all those students on the first midterm was u = 88 with standard deviation o = 10. One year, the teacher taught a %3D much smaller class of only 25 students. The teacher wanted to know if teaching a smaller class was more effective and students performed better. We can consider the small class as an SRS of the students who took the large class over the years. The average midterm score was = 78. The hypothesis should be: a. Ho: H = 78 vs. Ha: H = 88. %3D O b. Ho: µ = 88 vs. Ha: µ 78 %3D Ο d. Ho: μ-88 νs. Ha: μ >88. %3D
I have only 30 min. Please help
Solve Question 2 Please show work
Suppose the 90% confidence interval for the mean SAT scores of applicants at a business college is given by [1,691, 1,838]. This confidence interval uses the sample mean and the sample standard deviation based on 25 observations. Use t value 1.711 in your calculations. [You may find it useful to reference the t table.] What are the sample mean and the sample standard deviation used when computing the interval? (Round final answers to 2 decimal places.) sample mean = 1,764.50 sample standard deviation=??? ANSWER IS NOT 358.95
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A recent study of 25 randomly selected employees of a company showed that the mean of the distance they traveled to work was 14.09 miles. The standard deviation of the sample mean was 2.28 miles. Find the upper bound 95% confidence interval of the true mean. Round your answer to 3 decimal places.

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