Question
6. Suppose that two populations have equal population variances but are of different
10,000,000. Compare the variances of the sample
25. Is it substantially easier to estimate the mean
sizes: N100,000 and N2
means for a sample of size
of the smaller population?
expand button
Transcribed Image Text:6. Suppose that two populations have equal population variances but are of different 10,000,000. Compare the variances of the sample 25. Is it substantially easier to estimate the mean sizes: N100,000 and N2 means for a sample of size of the smaller population?
Expert Solution

Want to see the full answer?

Check out a sample Q&A here
Blurred answer
Students who’ve seen this question also like:
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Not helpful? See similar books
MATLAB: An Introduction with Applications
marketing sidebar icon
Want to see this answer and more?
Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*
*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: The nicotine content in miligrams of two samples of tobacco were found to be as Lallows: 25 26 21 27…

A: Click to see the answer

Q: he following are the data on sales (in thousand Pesos) over a fixed period of time from a random…

A: Click to see the answer

Q: Find the variance for the population consisting of the measurements ½, ¼, 1/3, ½, and 1/8 by using…

A: The population mean is, μ=∑XN=12+6+8+12+35=415=8.2 The population mean is 8.2.

Q: What proportion of the distribution of sample means is greater than a z of -1

A: The standard normal variable Z follows normal distribution with mean 0 and standard deviation 1.

Q: Give the mean and the standard deviation of the distribution of means for mean=100; Variance=100;…

A: Click to see the answer

Q: Calculate the Sample Variance for the following data set: 4, 5, 3, 0.

A: Given data, 4, 5, 3, 0.

Q: f the sample size is 30 for each group, there are 3 groups, and the mean score for football players…

A: Given that there are total 30 sample for each group and there are 3 group

Q: Suppose a population has three values (13, 17, 24) a. What is the population mean, population…

A: Given: Population has three values: (13,17,24) Sampling distribution of sample size=2  Objective…

Q: If it is known that a town with population 30,000 had 3,170 people who drive a Prius hybrid vehicle.…

A: Solution: The proportion of population who drive a Prius hybrid vehicle is From the given…

Q: Given the data: 22, 33, 44, 55, 23, 34, 45, 56, 20, 30, 40, 50 Test the hypothesis that the…

A: Click to see the answer

Q: 4. The following are the data on sales (in thousand Pesos) over a fixed period of time from a random…

A: Following are the explanation of the question.

Q: The marketing manager of a large multinational corporation is concerned that some salespersons…

A: From the given information we conduct chi squared test for variance.

Q: 2. Dave took 9 quizzes with 40 points each and obtained the following scores: 36, 38, 31, 40, 29,…

A: From the provided information, The points obtained are as follow: 36, 38, 31, 40, 29, 33, 40, 31 and…

Q: If a population forms a normal shaped distribution with µ =40 and σ = 8 and a sample of 16 scores…

A: Click to see the answer

Q: 2. Throughout the state of Kansas, there are approximately 4 potholes per 100 miles of highway. If…

A: Given,The average no.of potholes per 100 miles of highway=4A random variable…

Q: A sample was taken of the salaries of four employees from a large company. The following are their…

A: Click to see the answer

Q: If random samples, each with n = 16 scores, are selected from a normal population with µ = 100 and σ…

A: Here, the known values are n = 16,µ = 100 and σ = 20.

Q: 2- The sample mean and sample Variance of the following data are X 7 9. 14

A: Note: Hey, since there are multiple questions posted, as per guidelines we will answer first…

Q: Suppose that the time it takes a student to complete an assignment is normally distributed with mean…

A: Click to see the answer

Q: Suppose that the time it takes a student to complete an assignment is normally distributed with mean…

A: Given data: Mean = 60 Variance  = 100 Therefore,  standard deviation  = sqrt(variance) = sqrt(100) =…

Q: Consider a sample with data values of 10, 20, 12, 17, and 16. Compute the variance andstandard…

A: Click to see the answer

Q: Assume you did an experiment with 3 groups and 16 subjects per group. The sample variances in the…

A: Given Information Number of Groups = 3 Total subjects = 16 x 3 = 48 s1 = 14 s2 = 16 s3 = 18…

Q: Assume the managers have requested estimates of the mean attitudes towards each mall with a margin…

A: M.E= 0.05 Springdale Mean -3.81 Springdale STDEV - 1.06 West Mall Mean - 3.41 West Mall STDEV - 1.18…

Q: Suppose that the sampling distribution of size 10 has a mean of 30 and standard deviation of 3.…

A: Click to see the answer

Q: It is known that the population variance equals 522. What is the sample size that needs to be taken…

A: It is given that:

Q: In an effort to counteract student cheating, the professor of a large class created four versions of…

A: Click to see the answer

Q: The coefficient of variance of the (4 following set of data (18,20,15,12,25.) *is 20

A: Click to see the answer

Q: The Tampa Bay (Florida) Area Chamber of Commerce wanted to know whether the mean weekly salary of…

A: (1)   Determine the tail of the test.   The tail of the test is determined below as follows:   From…

Q: a.    If samples of a specific size are selected from a population and the means are computed, what…

A: The answer is explained below-

Q: Suppose an advertising company wants to determine the current percentage of customers who read print…

A: Given dataError = 5% = 0.05Confidence level = 0.98Significance level = α=1-0.98=0.02

Q: A study will be conducted to investigate whether there is a difference in the mean weights between…

A: A two-sample t-test can be defined as a statistical procedure which can be used to determine whether…

Q: If N = nk, where k is an integer, the sample mean Y sys is an unbiased estimate of population mean..

A: Answer: For the given data,

Q: For a population with μ = 50 and σ = 18, the distribution of sample means based on n = 9 will have a…

A: Click to see the answer

Q: If two samples have the same n, then the pooled variance will be the average of the two sample…

A: Statement: " If two samples have the same n, then the pooled variance will be the average of the two…

Q: Suppose the true proportion of voters in the county who support a new fire district is 0.35.…

A: the pdf of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Suppose that you are responsible for making arrangements for a business convention and that y have…

A: Given: A: Atlanta B: Houston H0:μA-μB≥0σA=36σB=31α=0.05

Q: a) It was discovered that the sizing of some shirts was labelled incorrectly. (i) State two…

A: In cluster sampling, population is divided into groups called clusters and entire cluster is…

Q: The number of employees, wages per employee and the variance of the wages pe vemployee for two…

A: Click to see the answer

Q: Suppose a random sample of 50 basketball players have an average height of 78 inches. Also assume…

A: Given information, n=50x¯=78σ=1.5 a) Given confidence level is 99% Significance level is 1%. From…

Q: If we delete the largest observation from a sample, then the sample mean and variance will both be…

A: The mean is the average of a group of numbers, and the variance measures the average degree to which…

Q: It is known that for a laboratory computing system the number of system failures during a month has…

A: It is known that for a laboratory computing system the number of system failures during a month has…

Knowledge Booster
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
  • 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
  • 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