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Activity 2 1. Using the t-table. give the confidence coefficients (t-value) for each of the following: a. n-12. 00% confidence b. n- 23, 05% confidence 2. Assuming that the samples comes from normal distributions, find the margin of error, E given the following: a. na18. = 78.3, s=- 2.5. 05% confidence b. n= 28, = 90.8, s = 2.8, 00% confidence Solve the following problems. 3. A random sample of 12 students in a certain dormitory has an average weekly expenses of Php400 for snacks, with a standard deviation of Php 12.50. Construct a 00% confidence interval for the amount spent on snacks. assuming the expenses are normally distributed. 4. A quality controller wants to estimate the proportion of high-quality goods out of a batch of products with a 00% confidence level and a margin of error of 5%. How many products must he test? 5. Given a sample size n= 12, sample mean of 120 ml and sample standard deviation of 0. The parent population is normally distributed. Find the error E and the interval estimate of the population mean a.

Activity 2 1. Using the t-table. give the confidence coefficients (t-value) for each of the following: a. n-12. 00% confidence b. n- 23, 05% confidence 2. Assuming that the samples comes from normal distributions, find the margin of error, E given the following: a. na18. = 78.3, s=- 2.5. 05% confidence b. n= 28, = 90.8, s = 2.8, 00% confidence Solve the following problems. 3. A random sample of 12 students in a certain dormitory has an average weekly expenses of Php400 for snacks, with a standard deviation of Php 12.50. Construct a 00% confidence interval for the amount spent on snacks. assuming the expenses are normally distributed. 4. A quality controller wants to estimate the proportion of high-quality goods out of a batch of products with a 00% confidence level and a margin of error of 5%. How many products must he test? 5. Given a sample size n= 12, sample mean of 120 ml and sample standard deviation of 0. The parent population is normally distributed. Find the error E and the interval estimate of the population mean a.

MATLAB: An Introduction with Applications
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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Activity 2 1. Using the t-table, give the confidence coefficients (t-value) for each of the following: a. n=12, 99% confidence b. n= 23, 95% confidence 2. Assuming that the samples comes from normal distributions, find the margin of error, E given the following: a. n=18, = 78.3, s = 2.5, 95% confidence b. n= 28, = 90.8, s = 2.8, 99% confidence Solve the following problems. 3. A random sample of 12 students in a certsin dormitory has an average weekly expenses of Php400 for snacks, with a standard deviation of Php12.50. Construct a 90% confidence interval for the samount spent on snacks, assuming the expenses are normally distributed. 4. A quality controller wants to estimate the proportion of high-quality goods out of a batch of products with a 90% confidence level and a margin of error of 5%. How many products must he test? 5. Given a sample size n = 12, sample mean of 120 ml and sample standard deviation of 6. The parent population is normally distributed. Find the error E and the interval estimate of the population mean u.
Transcribed Image Text:Activity 2 1. Using the t-table, give the confidence coefficients (t-value) for each of the following: a. n=12, 99% confidence b. n= 23, 95% confidence 2. Assuming that the samples comes from normal distributions, find the margin of error, E given the following: a. n=18, = 78.3, s = 2.5, 95% confidence b. n= 28, = 90.8, s = 2.8, 99% confidence Solve the following problems. 3. A random sample of 12 students in a certsin dormitory has an average weekly expenses of Php400 for snacks, with a standard deviation of Php12.50. Construct a 90% confidence interval for the samount spent on snacks, assuming the expenses are normally distributed. 4. A quality controller wants to estimate the proportion of high-quality goods out of a batch of products with a 90% confidence level and a margin of error of 5%. How many products must he test? 5. Given a sample size n = 12, sample mean of 120 ml and sample standard deviation of 6. The parent population is normally distributed. Find the error E and the interval estimate of the population mean u.
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