**Course Evaluation Ratings Analysis**Listed below are student evaluation ratings of courses, where a rating of 5 is considered "excellent." The ratings were obtained at one university in a state. Construct the confidence interval using a 98% confidence level.**Ratings:**3.4, 2.4, 4.4, 5.0, 2.7, 4.6, 3.4, 4.2, 4.8, 4.7, 3.8, 4.3, 3.8, 3.5, 4.1**Task:**What is the confidence interval for the population mean, μ?

Answered: Image /qna-images/answer/184bcbcf-4e09-40f0-989c-f8cab9460b00.jpg

Answered: Listed below are student evaluation…

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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Next Question A statistics instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and w that the distribution of weights is Normal. Find a 95% confidence interval for the mean weight of all bags of oranges. Use technology for your calculations. Answer parts a and b ley weighed 9.3, 9.1, 9.5, and 9.6 pounds. D Assume below. a. Choose the correct interpretation of the confidence interval below and, if necessary, fill in the answer boxes to complete your choice. O A. We are 95% confident that the sample mean is between and O B. There is a 95% chance that all intervals will be between and O C. We are 95% confident the population mean is between and O D. The requirements for constructing a confidence interval are not satisfied. (Type integers or decimals rounded to the nearest thousandth as needed. Use ascending order.) b. Does the interval capture 10 pounds? Is there enough evidence to reject the null hypothesis that the population mean weight is 10 pounds? Explain…
Here are summary statistics for randomly selected weights of newborn girls: n=242, x= 33.8 hg, s= 7.8 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are K these results very different from the confidence interval 32.2 hg O L FIR P command Clear all . V ; I e option Check answer 11 ? | 19 . 1 delete V
The table contains prices from two companies, one on the east coast and one on the west coast, for specific fish types. Find a 90% confidence interval for the mean difference in wholesale price between the east coast and west coast suppliers. Round to two decimal places. Wholesale Prices of Fish in Dollars Fish East Coast 19.99 7 21.99 26.99 29.99 28.99 23.99 31.99 29.99 Cod Tilapia Farmed Salmon Organic Salmon Grouper Fillet Tuna Swordfish Sea Bass Striped Bass 3.69 West Coast 18.99 12 20.99 28.99 30.99 32.99 29.99 With 90 price between the east coast and west coast suppliers is between $ -9.69 X 38.99 33.99 O % confidence, it can be said that the true mean difference in wholesale x and $
Give a 99.9% confidence interval, for u1 H2 given the following information. 25, 1 = 2.21, s1 55, 72 = 2.45, s2 = 0.92 0.37
Lo A life satisfaction measure is normally distributed with u = 66. Nine individuals with only a primary education are randomly selected to take the life satisfaction measure. Construct and interpret a 90% confidence interval based on the samples results in the table below. 56 57 60 63 68 63 47 45 63
The EPA tests cars for city miles per gallon (mpg). For one model, a sample of 16 cars were tested for mpg, the results follow. 28 25.7 25.8 28 28.5 29.8 30.2 30.4 26.9 28.3 29.8 27.2 26.7 27.7 29.5 28 Find the 95% confidence interval for mean mpg. Find the 99% confidence interval for mean mpg.
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K Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 90% confidence level. What does the confidence interval tell about the population of all college students in the state? 3.8, 3.0, 4.2, 4.8, 2.8, 4.2, 3.4, 4.8, 4.7, 4.1, 4.5, 3.7, 3.1, 3.9, 4.0 this 2 W S View an example X H hand What is the confidence interval for the population mean μ? << (Round to two decimal places as needed.) #3 80 P3 E D C Get more help - $ 4 888 FA R F % 5 V T FS G MacBook Air B F6 Y H & 7 N с *** J 00* 8 FB I M 9 F9 H Clear all L F10 888 P command Check answer { L [ alt option (0) ? } 1 delete
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View both photos attached and answer the question below. Estimate the net sale in future promotions, 95% confidence intervals for the population means were constructed. See output below. Explain and compare the confidence interval for net sales for Promotional and Regular customers. Make sure to clearly describe the confidence intervals in the context of the problem.
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct the confidence interval using 99% confidence level. 4.0 3.0 3.9 5.0 3.0 4.0 3.4 4.8 4.6 3.9 4.0 4.0 3.1 4.1 4.0 What is the confidence interval for the population mean, µ ?

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