Giving a test to a group of students, the grades and gender are summarized belowAB C TotalMale 1240Female 321611997 11Total 15 26 20Let p represent the population proportion of all female students who received a grade of C on thistest. Use a 80% confidence interval to estimate p to four decimal places if possible.

Solution : Given : The population proportion of all female students who received a grade of C on…

Answered: Giving a test to a group of students,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 29 20 34 83 Female 43 26 25 94 Total 72 46 59 177 Use the table above to get a 90% confidence interval for the percentage of all female students who would receive a grade of A on this test.Enter your answers below using decimals. < P <
The heart rates for a group of 17 students taking a final exam are given below. Assume heart rates are normally distributed. Use a TI-83, TI-83 plus, or TI-84 calculator to find the 95% confidence interval for the true population mean. Round your answers to two decimal places and use increasing order. Beats per minute 92 101 93 89 93 89 92 95 86 93 96 93 96 87 94 97 101
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 9 7 5 21 Female 3 4 15 22 Total 12 11 20 43 Let p represent the population proportion of all male students who received a grade of B on this test. Use a 85% confidence interval to estimate p to four decimal places if possible.
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 15 7 5 27 Female 12 20 3 35 Total 27 27 8 62 Let p represent the population proportion of all male students who received a grade of A on this test. Use a 98% confidence interval to estimate p to four decimal places if possible. < p <
You are interested in finding a 99% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 15 randomly selected college students. Round answers to 3 decimal places where possible. 1 7 12 10 2 0 9 0 7 11 6 11 10 2 12 b. With 99% confidence the population mean number of days of class that college students miss is between ? and ? days. c. If many groups of 15 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of missed class days and about ? percent will not contain the true population mean number of missed class days.
Sample data set: 47 95 54 33 64 4 8 57 8 90 3 49 4 44 79 80 68 7 15 21 6 6 78 109 29 The 92% confidence interval for the population mean is <μ< place.) 9 80 48 16 40 50 . (Round answer to one decimal
Please answer all. Thank you. The width of a confidence interval for a proportion will be A.) wider for sample of size 100 than for a sample size of 50 B.) wider when the sample proportion is 0.50 than when the sample proportion is 0.20 C.) wider for 90 percent confidence than for 95 percent D.) narrower for 99 percent confidence than for 95 percent Which of the following is not a property of a normally distributed data. A.) the mean, median and mode coincide at the center B.) area under curve is 1 C.) the width of curve is determined by the mean of distribution. D.) the curve is symmetrical about its center.
A random sample of statistics students were asked to estimate the total number of hours they spend watching television in an average week. The responses are recorded in Table. Use this sample data to construct a 98% confidence interval for the mean number of hours statistics students will spend watching television in one week. Assume the population is normally distributed. (Give your answer to 3 decimal places if necessary.) 20 13 1 10 20 0 10 13 16 10 1 17 18 3 9 (?,?)
Use the following sample information below to calculate the confidence interval to estimate the population proportion. Let x be the number of items in the sample having the characteristic of interest. a. n = 116 and x = 57, with 99% confidence b. n = 800 and x = 479, with 97% confidence c. n = 240 and x = 106, with 85% confidence d. n = 60 and x = 21, with 90% confidence
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 13 7 12 32 Female 5 8 15 28 Total 18 15 27 60 Let p represent the population proportion of all female students who received a grade of A on this test. Use a 80% confidence interval to estimate p to 5 decimal places if possible. < p <
You are interested in constructing a 99% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 382 randomly selected caterpillars observed, 54 lived to become butterflies. Round answers to 4 decimal places where possible. a. With 99% confidence the proportion of all caterpillars that lived to become a butterfly is between__ and __.
The following are the score SAT scores of 5 students of a certain class in a university. Find the 99% confidence interval of the mean SAT score of all the students in the class. 92 83 89 79 87 What is the upper limit of this confidence interval? Round your answer to 2 decimal places.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS