Many states are carefully considering steps that would help them collect sales taxes on items purchased through the Internet. How many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the​ Internet? Assume that we want to be 99% confident that the sample percentage is within two percentage points of the true population percentage for all sales transactions.

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A: From the given information,   Margin error = 0.06 Assume sample proportion = 0.5   The objective is…

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A: Solution: 6. From the given information, confidence level is 0.95 and E=0.03.

Q: The use of the Internet is constantly growing. How many randomly selected adults must be surveyed to…

A: Solution

Q: A physical therapist wants to determine the difference in the proportion of men and women who…

A: Given :  E = 3% = 0.03 p1 = 0.214 p2 = 0.187 Z = 2.576 at 99% confidence

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Solution: Given information: n1= 1100 Sample size of adults in 1945 survey  x1= 352 adults indicates…

Q: Required: A statement of the number of engineers, employees and workers who make up this sample.

A: here given ,  A random sample of 30 is chosen from population of 130 professionals  there are 30…

Q: An online retail claims that 90% of all orders are shipped within 11 hours of being received. A…

A: Assume that p is the population proportion of all orders those are shipped within 11 hours of being…

Q: Can you think of an area where it might not be practical, for a variety of reasons, to sample 100%…

A: Given:- We can think of an area where it might be practical, for a variety of reasons ,to sample…

Q: A marketing research firm wishes to conduct a poll in a certain region to estimate the proportion of…

A: Solution: From the given information, confidence level is 0.90 and E=0.03.

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A: The given information is as follows: Denote the population proportion of transactions that…

Q: 3. A political scientist would like to estimate the proportion of voters who read their ballot…

A: To calculate: How large of a sample size does she need?

Q: If a manufacturer conducted a survey among randomly selected target market households and wanted to…

A: When we don't have any prior information about population proportion, we generally take it as 0.50.…

Q: A poll in Canada states that 67% of all respondents favor imposing the death penalty. The poll was…

A: Given that - A poll in Canada states that 67% of all respondents favor imposing the death penalty.…

Q: A researcher wishes to estimate the number of households with two computers. How large a sample is…

A: Givenconfidence level = 90%Margin of error(E)=2%=0.02p^=0.45

Q: If σ = 35, what sample size would you need to get the standard error to be at most 2.5? If the…

A:

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A:

Q: In 1942 ​, an organization surveyed 1100   adults and​ asked, "Are you a total abstainer​ from, or…

A: The proportion of considered subjects, on which we are interested from a sample can be termed as…

Q: The sample size required is (Round up to the nearest integer.)

A: Here use formula of margin of error

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Let, X1= number of abstainer in the previous test n1= total sample size of the past test p1^ =…

Q: Suppose, you want to know, if majority of the people prefer chocolate ice-cream over all others…

A: Solution: Given information: Margin of error = E = 0.03 confidence level = 80%=0.80 Level of…

Q: If a manufacturer conducted a survey among randomly selected target market households and wanted to…

A: From the provided information, Margin of error (E) = 6% that is 0.06 Confidence level = 95% The…

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A: Given Information Error = 0.05 Confidence level = 0.95

Q: In 1944​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: We habe to find given proportion.

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A:

Q: Teip An advocacy organization surveys 967 citizens of country A and 182 of them reported being born…

A: Sample proportion: Sample proportion is the proportion of individual in a sample with specific…

Q: If a manufacturer conducted a survey among randomly selected target market households and wanted to…

A: question: If a manufacturer conducted a survey among randomly selected target market households and…

Q: Determine the sample size if o = 6, population mean = 25, sample mean = 23 and the desired degree of…

A:

Q: Suppose you would like to estimate, with 97% confidence, the proportion of computers that need…

A: It is given that the level of confidence is 97% and desired margin of error E is 0.035.The formula…

Q: In 1941​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: In 1941​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

Q: For any sample of size 90, the population mean, the mean of the sampling distribution for the…

A:

Q: Please view the question in the photo and answer the following questions. TY! (A) What is the…

A: Given,margin of error (E)=0.02α=1-0.90=0.1α2=0.05Z0.05=1.645   (from Z-table)

Q: A marble manufacturer advertises that its bags of marbles will contain 25% "milky-white" marbles.…

A: In the context, the sampling percentage of milky-white marbles, p̂ is 25%. The total number of…

Q: In 1949​,an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: Sample 1:In 1949 survey, there are 374 individuals out of 1,100 indicated that they are total…

Q: In 1949, an organization surveyed 1100 adults and asked, "Are you a total abstalner from, or do you…

A: Given : x1=374n1=1100p^1=0.34x2=330n2=1100p^2=0.30We want to find the value of test stitistic.

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: b) Null Hypothesis: H0: The variables age and departments are independent. Alternative Hypothesis:…

Q: Suppose the true proportion of voters in the county who support a new fire district is 0.53.…

A: The mean of the binomial random variable obtained by the formula μ=np, where (n) is the number of…

Q: Assuming a sample size of 76, what is the 90th percentile for the AVERAGE teacher’s salary?

A: From the above question The given values are  n = 76 The calculate 90 th  percentile So the formula…

Q: 2. Find the minimum sample size needed to be 90% confident that the true proportion of students who…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is,

Q: 1. Come up with a sampling plan to find the proportion of dots that are red, and also an estimate of…

A: Given: A square of side 1 with numerous red and black dots

Q: We are interested in conducting a study in order to determine what percentage of voters of a state…

A:

Q: For quality assurance, every fifth package on an assembly line is selected and tested for…

A: Given that for quality assurance, every fifth package on an assembly line is selected and tested for…

Q: Many states are carefully considering steps that would help them collect sales taxes on items…

A: Solution: From the given information, confidence level is 0.99 and E=0.02.

Q: In 1942, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: Given that  Sample sizes n1=1100 , n2=1100 Favorable cases x1=440 , x2=418

Q: How large must the sample size be in order to to estimate a true proportion to within one percentage…

A:

Q: In order to assess the opinion of students at De Anza College, a reporter for the student newspaper…

A: 11. Population is the entire set of objects or subjects to be covered for the study. Here, the…

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: Solution: a) Number of crimes is the dependent variable in the model. Dependent variable: Number of…

Q: Discuss the four different sampling methods, and for each method, explain why we might use it.

A: Here we need to discuss four different types of sampling methods with their uses.