Answered: LS ANSWER QUESTIONS 13, 15, and 16…

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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PLS ANSWER QUESTIONS 13, 15, and 16

..The house brand premium chocolate chip cookie for Sale Mart Supermarket is called Choco-Champs. The company sells them only in a small pack, claiming in advertisements that this sized package of cookies is figuratively bursting with about 250 real chocolate chips contained within the cookies. A consumer testing lab tech is double checking this claim, and has collected a random sample of 9 packs of Choco-Champs from as many randomly selected store locations. A technician appropriately cold washes the cookies and counts the chips in each package. The results of these cold washes were recorded as follows:

246	247	241
245	249	247
243	245	251

13. What is the chance of a Type I error in this context? Express this answer in whole percentage with percent symbol?

15. What is the p-value that corresponds with the test statistic value, expressed as a decimal rounded to the nearest thousandth?

16. Compute the lower and upper bounds for the 99% confidence interval associated with this sample mean and sample size. Express your answer rounded to the nearest thousandth if necessary.

Lower or left bound:

uppor or right bound:

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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