Question 23.83.04.04.83.04.23.54.74.44.24.33.83.34.03.8Above are student evaluation ratings of courses in a university in Malaysia, where a rating of5 is for "excellent.". Use a 90% confidence level. What does the confidence interval tell usabout the population of students in Malaysia?

We have given that data First we want to find mean and standard deviation . Then find 90%…

Answered: 3.8 3.0 4.0 4.8 3.0 4.2 3.5 4.7 4.4 4.2…

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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A SURVEY WAS CONDUCTED IN 2010 AND 2020. THE 2010 RESULTS SUMMARIZED THE RESPONSES OF 1250 INDIVIDUALS, WHEREAS THE RESULTS OF THE 2020 SURVEY INVOLVED 1251 INDIVIDUALS. THE DATA ARE SUMMARIZED IN THE TABLE BELOW 1 HEALTH ISSUE ATE RECOMMENDED AMOUNT OF FIBROUS FOOD AVOIDED FAT 2010 SURVEY 2020 SURVEY 0.59 0.53 0.55 0.51 Construct a 95% confidence interval for the proportion of South Africans who avoided fat in 2010. Interpret your answer
Example: You would like to construct a 90% confidence interval for the proportion of graduating seniors that go directly on to graduate school. You randomly sample 386 graduating seniors and find that 73 will be enrolling in graduate school in the upcoming semester. 1. What is your point estimate? 2. Construct a 90% confidence interval for the true proportion of graduating seniors that go directly on to graduate school? 3.How many graduating seniors will you have to sample to have a margin of error within 2%?
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We constructed a 95% confidence interval for a population mean. Which of the following would cause the confidence interval to become wider. Select all that apply. This question does not break the honor code and is not graded. Just practice on topics
please answer these all questions
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.
Report an appropriate hypothesis test for a positive linear relationship and use a 5% significance level. Explain the potential error in words, in context. In the answer options below I have used the phrase “a certain relationship” because I don’t want to give away exactly what type of relationship it is. Group of answer choices We would be accepting that there was a certain relationship between Sale amount and Tip when actually there wasn’t. We would not be accepting that there was a certain relationship between Sale amount and Tip when indeed there wasn’t. We would not be accepting that there was a certain relationship between Sale amount and Tip when actually there was. We would be accepting that there was a certain relationship between Sale amount and Tip when indeed there was.
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
Explain the difference between a point estimate and confidence interval. Provide an example.
PLEASE ELABORATE MORE The data set below shows the amount of trash generated by ten households (in pounds per day). Assume that the population is normally distributed. 3:9 4:6 15:6 10:5 16:0 6:7 12:0 9:2 13:8 16:8 (a) Construct a 95% confidence interval for the mean based on the sample. (b) Construct a 90% confidence interval for the mean. (c) Construct an 80% confidence interval for the mean.
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3.8 3.0 4.0 4.8 3.0 4.2 3.5 4.7 4.4 4.2 4.3 3.8 3.3 4.0 3.8 Above are student evaluation ratings of courses in a university in Malaysia, where a rating of 5 is for "excellent.". Use a 90% confidence level. What does the confidence interval tell us about the population of students in Malaysia?