A random sample of 10 candy store franchises had a mean startup cost$106.90 thousand and s = $29.40 thousand. Find a 90% confidence interval for thepopulation average startup cost u for candy store franchises. Assume that x has a distributionthat is approximately normal.Write the data and based on it, decide what distribution you will use.9)ofa) |Data:Distribution:b)c)d)Use the appropriate formula to find the maximal error EWrite the confidence interval) Interpret your results

Sample size (n) = 10Sample mean (x̅) = 106.90Standard deviations (s) = 29.40Confidence level (c) =…

Answered: A random sample of 10 candy store…

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

Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed.c=0.95, x=14.6, s=2.0, n=5
The test scores in a certain statistics class are normally distributed with a mean of 76 and a standard deviation of 5. a.) Use the Empirical Rule to estimate the percentage of students who scored between 66 and 86 points. b.) Compute the z-score for a test score of 79 points. a. 0.97 b. 0.6 C. -0.6 d. -0.97 c.) What proportion of the scores were below 79 points? a. 0.7257 b. 0.834 c. 0.2743 d. 0.166
Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What proportion of people has diastolic blood pressures less than 80? A)0.661 B)0.338 C)0.50 D)0.75
The distribution of weights for 12-month-old baby boys in the US is approximately normal with mean u = 22.5 pounds and standard deviation o = 2.2 pounds. a) If a 12-month-old boy weighs 20.3 pounds, approximately what weight percentile is he in? b) If a 12-month-old boy is in the 84th percentile in weight, estimate his weight. c) Estimate the weight of a 12-month-old boy who is in the 25th percentile by weight. d) Estimate the weight of a 12-month-old boy who is in the 75th percentile by weight.
In a study using 14 samples, and in which the population variance is unknown, the distribution that should be used to calculate confidence intervals is A.) a standard normal distribution. B.) at distribution with 13 degrees of freedom. C.) at distribution with 14 degrees of freedom. D.) at distribution with 15 degrees of freedom. 1.
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 6 ounces.Use the Empirical Rule, finda) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 43 and 73 ounces? %c) What percentage of the widget weights lie above 49 ?
A normal distribution of scores has a standard deviation of 10 and a mean of 0. Find the z-scores corresponding to each of the following values: a) A score that is 20 points above the mean. b) A score that is 10 points below the mean. c) A score that is 15 points above the mean d) A score that is 30 points below the mean. IQ scores have a mean of 100 and a standard deviation of 16. Albert Einstein reportedly had an IQ of 160. a. Convert Einstein’s IQ score to a z score.
Construct the indicated confidence interval for the population mean y using the t- distribution. Assume the population is normally distributed. C=0.99, x=12.6, s= 0.81, n=17
Use the given data to find the 95% confidence interval estimate of the population mean . Assume that the population has a normal distribution. IQ scores of professional athletes: Sample size n = 10 Mean 106 Standard deviations = O

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