Consider the following hypothesis test.The following data are from matched samples taken from two populations.Element12345a. Compute the difference value for each element. If your answer is zero, enter "0".ElementDifference12X3X4X5b. Compute d.c. Compute the standard deviation $4.d. Conduct a hypothesis test using a = 0.05. What is the p-value?The p-value is - Select your answer -What is your conclusion?Reject H0, Mean population 1 is greater than mean population 2Ho: Md ≤ 0Had>0Population1252819202422426192022

The provided hypothesis is Ho:µd≤0Ha:µd>0 a. Population Population Difference Element…

Answered: b. Compute d. c. Compute the standard…

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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A simple random sample of 100 observations was taken from a large population. The sample mean and the standard deviation were determined to be 81 and 9 respectively. The standard error of the mean (i.e. the standard error of the sampling distribution) is 8.10 0.90 O 0.81 O 0.27 Clear my choice
25- Which of the following method is to measure the variability? a. Quartile deviation b. Variance c. All d. Standard Deviation
Explain how each of the following influences the value of the z-score in a hypothesis test a. increasing the difference between the sample mean and the original population mean b. increasing the population standard deviation c. increasing the number of scores in the sample
Here are the monthly wage scales of 8 workers from XYZ Knit Works. 15 13 18 12 21 13 26 22 a. Determine the mean of the workers' wages. Answer in exact fraction, or rounded to at least 4 decimal places b. Determine the variance of the workers' wages. Answer in exact fraction, or rounded to at least 4 decimal places
5. In a normal distribution of scores, four participants obtained the following deviation scores: -10, -1, 0, +4. a. Which of these is the highest raw score? How do you know? b. Which is the lowest raw score? How do you know? c. Did anyone obtain a score that was the same as the mean? Explain
Consider the following sample: 1, 4, 7, 2, 6. How does the standard deviation change when the 7 is replaced with a 12? Answer intuitively first, and then check your answers numerically.
The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces.Refer to Exhibit 6-5. What is the random variable in this experiment? a. 8 ounces b. Weight of items produced by a machine c. Normal distribution d. 2 ounces
. A university examines the variability in the math scores of students accepted to the business and engineering schools. The table below presents sample data from the most recent incoming class.Engineering BusinessSample Standard Deviation 122.4 106.5Sample Size 16 19Perform a hypothesis test to determine whether the variation in math scores is different if ? = 0.05.
The Human Development Report 2013, published by the United Nations, showed life expectancies by country. Values reported for some countries in Western Europe and values reported for some countries in Africa are available in the accompanying table. a. Which group (Western Europe or Africa) of life expectancies do you think has the larger standard deviation? Why? b. Find the standard deviation for each group. Compare them to illustrate that s is larger for the group that shows more variability from the mean. Click the icon to view the life expectancy data. X Life Expectancy Data a. Which group do you think has the larger standard devia European Country Austria O A. The Africa group should have the larger standard d O B. The Western Europe group should have the larger OC. The Western Europe group should have the larger O D. The Africa group should have the larger standard d Life Expectancy African Country 81 Angola Botswana 80 80 Belgium Denmark Finland France 81 83 81 standard deviation…
D. Tell whether the distribution has a small or large variance E. Compute the actual variance and standard deviation
State the null and alternate hypothesis. Will you use a left tail, right tail or 2 tailed test? Identify the sampling distribution to be used: standard normal, Student’s t or chi squared. Find the value of the test statistic. Find the P-Value. Based on your answers, shall we reject or accept the null hypothesis? Write the conclusion in the context of the problem.
MC Qu. 10-64 Sales at a fast-food restaurant average... Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to Increase daily sales. In order to determine the effectiveness of the advertising campaign, a sample of 49 day's sales were taken. The sample showed average daily sales of $6,300. From past history, the restaurant knew that its population standard deviation is about $1,000. If the level of significance is 0.01, have sales increased as a result of the advertising campaign? Multiple Choice Fail to reject the null hypothesis. Reject the null hypothesis and conclude the mean is higher than $6,000 per day. Reject the null hypothesis and conclude the mean is lower than $6,000 per day. Reject the null hypothesis and conclude that mean equal to $6,000 per day.

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b. Compute d. c. Compute the standard deviation $4. d. Conduct a hypothesis test using a = 0.05. What is the p-value? The p-value is-Select your answer - What is your conclusion? Reject HO, Mean population 1 is greater than mean population 2