12Activity 2: Solve Me!Directions: Analyze and Solve the following problems completely. Write yoursolution in a coupon bond.1. The mean and standard deviation for the quality grade - point averages of arandom sample of 36 college seniors are calculated to be 2.6 and 0.3 respectively.Find thea. 95% confidence interval for the mean of the entire senior classb. 99% confidence interval for the mean of the entire senior class2. A sample of 10 measurements of the length of a chip gave a mean of 2.36 cmand a standard deviation of 0.06 cm. Find thea. 95% confidence limitsb. 99% confidence limits3. A researcher of a cardboard manufacturing company would like to know theestimated thickness of the cardboard a machine produces. How manycardboards should he measure if he wants to be 99% confident that the estimateis accurate to 1 mm. Study shows that the standard deviation is 3mm.

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1. The mean and standard deviation for the quality grade point averages of a random sample of 36 college seniors are calculated to be 2.6 and 0.3 respectively. Find the a. 95% confidence interval for the mean of the entire senior class b. 99% confidence interval for the mean of the entire senior class

1. The mean and standard deviation for the quality grade point averages of a random sample of 36 college seniors are calculated to be 2.6 and 0.3 respectively. Find the a. 95% confidence interval for the mean of the entire senior class b. 99% confidence interval for the mean of the entire senior class

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

12
Activity 2: Solve Me!
Directions: Analyze and Solve the following problems completely. Write your
solution in a coupon bond.
1. The mean and standard deviation for the quality grade - point averages of a
random sample of 36 college seniors are calculated to be 2.6 and 0.3 respectively.
Find the
a. 95% confidence interval for the mean of the entire senior class
b. 99% confidence interval for the mean of the entire senior class
2. A sample of 10 measurements of the length of a chip gave a mean of 2.36 cm
and a standard deviation of 0.06 cm. Find the
a. 95% confidence limits
b. 99% confidence limits
3. A researcher of a cardboard manufacturing company would like to know the
estimated thickness of the cardboard a machine produces. How many
cardboards should he measure if he wants to be 99% confident that the estimate
is accurate to 1 mm. Study shows that the standard deviation is 3mm.

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