Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 95% confidence that your error is no more than 0.045.

Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 95% confidence that your error is no more than 0.045.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: You would like to conduct a survey to estimate the proportion p of consumers who like a new brand of…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: From the provided information, Margin of error (E) = 0.06 Confidence level = 95% The Z value at 95%…

Q: A pediatrician wants to determine the relation that may exist between a child's height and head…

A: Introduction: Consider that there are n pairs of observations of variables the x and y. The formula…

Q: A statistics professor made the following histogram for the scores on her class’s first exam. If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Given Assuming sample proportion, p^1=p^2=0.5 as there is no prior estimate. Margin of error, E=0.06…

Q: A group of students were surveyed about the number of siblings they have. The frequencies and…

A: Solution: From the given information, the table of frequencies and relative frequencies of their…

Q: Construct the described data set. The entries in the data set cannot all be the same. The mean is…

A: It is needed to discuss about the mean.

Q: Nationally, 80 percent of adults own an thermometer. You are interested in whether the same…

A: We have given that Sample size n = 100 Sample proportion p^=75%=0.75 Population proportion…

Q: Suppose a researcher wants to estimate the population proportion of defective light bulbs. He took a…

Q: Please help answer all of them 1. Use the formula in this example to determine the sample size, n.…

A: 1) Given that Population proportion p=0.25 Margin of error =E =0.07 NOTE:- According to bartleby…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Find z-critical value:…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given dataThe number of hours per week that the television is turned on is determined for each…

Q: A sample has SS= 20 and s? = 4. How many scores are in the sample?

A: Six scores are in the sample.

Q: please answer in text form and in proper format answer with must explanation , calculation for each…

A: Inventory management is a crucial aspect of any business, and for Bob, a statistics textbook author…

Q: U.S. consumers are increasingly viewing debit cards as a convenient substitute for cash and checks.…

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…

Q: Determine whether the given value is a statistic or a parameter. A sample of employees is selected…

A: There are few terms that are widely used in Statistics: (1) Random variable: Variable means a…

Q: A poll was conducted on a representative sample of 600 adults living in the United States in order…

A: A poll was conducted on a representative sample of 600 adults living in the United States in order…

Q: Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net…

A: The provided information is as follows:The data set is given as: SampleSample RangeSample…

Q: Scores Frequency 1-20 17 21 - 40 41 - 60 61 - 80 81 - 100 27 33 23 10

A: Given Scores Frequency 1 - 20 17 21 - 40 27 41 - 60 33 61 - 80 23 81 - 100 10

Q: We want to know the opinions of the people of a city with a population of 50,000. One person…

A: Hey there.! thank you for posting your question. Hope you're doing well. Given : The people of a…

Q: Refer to the data set of birth weights (grams) of the 44 babies given in the accompanying table and…

A: The question is about measure of central tendency Given : To find : a ) Mean b ) Median

Q: (papaau se segpid se technology to calculate the P-value. P-value = (Round to four decimal places as…

A: Given that Sample sizes for country C and Country D is n1=1024 , n2=1078 Level of significance…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Obtain the sample size for each of the sample. The formula of sample size is, Use EXCEL Procedure…

Q: A sample has SS= 20 and s2 =4. How many scores are in the sample?

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Computing the sample size: The confidence level is 90%. Therefore, α = 0.10 and α/2=0.05. The margin…

Q: Calcium is essential to tree growth because it promotes the formation of wood and maintains cell…

A: c) Decision Rule: If the confidence interval contains the true population mean value, then do not…

Q: For the data set, {8, 3, 1, 11, 8, 7}, Q1 3.0 %3D Q3 8.0 ニ IQR = | 8.25

Q: At the Fredericton High School it is estimated that at most 25% of the students ride bikes to…

A: Let, p = proportion of students who ride bikes to school

Q: The scatterplot illustrates the relationship between distance and success rate of field-goal…

A: Given,

Q: A recent study indicated that 43% of the 100 women over age 55 in the study were widows. Round up…

Q: Please answer Question E Below is a sample of 64 responses of a survey of Ward 3 residents in…

A: Given,n=64p=0.69mean(μ)=0.69standard deviation(σ)=p(1-p)nσ=0.69(1-0.69)64σ=0.0578

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

Q: Determine the test statistic, tSTAT· 1STAT = (Round to two decimal places as needed.) Find the…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: According to a Mobile Marketing Company's survey of 2000 people, 60% said that they use their mobile…

A: We have to find nom of successes in given sample.

Q: A claim is made that 85% of college students own a smartphone. Natalie believes that a larger…

A: Let p be the population proportion p=0.85, x= 135, n=150 p^=x/n

Q: Select the answer below that would represent a POPULATION. A poll of 100,000 people in the United…

A: Any data may be population or sample We can know data is population or sample : We know : Sampling…

Q: the expression in the accompanying discussion of sample size to find the size of each sample if you…

Q: number of hours per week that the television is turned on is determined for each family in a sample.…

A: Given that Mean = 30 Median = 26.2

Q: Given the spot speed of 20 vehicles on a certain traffic section. Use 8 classes. Determine: a. The…

A: Please find the explanation below. As asked by you, I have answered the questions (a) and (b).

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Given: The level of confidence is 90%. Let M.E represents the margin of error. The margin of error…

Q: 1. How are the collection of all sample proportions of samples of size 172 distributed? NO 2. What…

A: Given Information: Sample size (n) = 172 studentsPopulation Proportion (p) = 0.51. The distribution…

Q: Using the data given below, determine whether it would unusual for a household to have no HD…

A: Given that probability of having No HD television in a small town is 0.020

Q: A pediatrician wants to determine the relation that may exist between a child's height and head…

A: Solution Given that Height Head Circumference 27 17.5 25…

Q: Please calculate the SD of a sample of 8 data points using the formula taught in class. The…

A: We hava given that, ΣX2 = 5012.2, n = 8, x̄ = 24.0 Then, We will find the standard deviation (SD)…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given information- Mean of the data = 35 hours Median = 31.2 hours Sample size = 24 families We have…

Question

95%

confidence that your error is no more than

0.045.

The sample should include

how may men?

and how many
women?

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution

Step 1

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

The best predicted weight for a bear with a chest size of 51 inches is ? pounds. Is the result close to the actual weight of 452 pounds? A. This result is very close to the actual weight of the bear. B. This result is close to the actual weight of the bear. C. This result is not very close to the actual weight of the bear. D. This result is exactly the same as the actual weight of the bear.
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 9999% confidence that your error is no more than 0.040.04. LOADING... Click the icon to view the discussion of sample size. The sample should include nothing men and nothing women. (Type whole numbers.)
Please answer
What is the value of the variance when all the data in the set are equal? a. -1 b. 0 c. 1 d. 100%
In each of Exercises, explain the effect on the margin of error and hence the effect on the accuracy of estimating a population mean by a sample mean. Decreasing the sample size while keeping the same confidence level
The heights, in inches, of the four members of a barbershop quartet of singers are listed below. 72,68,67,73 Find the population variance for this data set. Round to one decimal place if necessary.
show how to answer and put into graphing calculator. Ppool = .126
Given the set of 3 data points 82, ____, _____ Find the 2 missing terms if the median is 84. Once you find one answer, explain how you found your answer and if it is possible to have more than one answer. Please give details about the other possible data points
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 90% confidence that your error is no more than 0.035. A Click the icon to view the discussion of sample size. The sample should include men and women. (Type whole numbers.)
Q2: The number of stories in the 10 tallest buildings for two different cities is listed below. Which set of data is better on the average and which set is more variable? 50 34 Houston: 71 64 56 53 55 47 55 52 50 Pittsburgh: 54 40 32 46 44 42 41 40 40
please answer all questions. it would really mean a lot. thank you!
Please solve for parts G, H, and I.