The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. In an earlier study, the population proportion was estimated to be 0.190.19. How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 98%98% confidence level with an error of at most 0.020.02? Round your answer up to the next integer.

Q: People were polled on how many books they read the previous year. How many subjects are needed to…

A:

Q: a recent poll, 550 people were asked if they liked dogs, and 44% said they did. Find the margin of…

A: We have given that  Sample size n= 550 Sample proportion p^= 0.44

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: Option A is correct

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

A: Given: n= 1031 ,x= 545 need to find point estimation for p.

Q: In a recent poll, 450 people were asked if they liked dogs, and 48% said they did. Find the margin…

A: Total number of people = 450 Given that in a recent poll, 450 people were asked if they liked dogs,…

Q: In a​ poll, 51​% of the people polled answered yes to the question​ "Are you in favor of the death…

A:

Q: A researcher wants to estimate the proportion of electric car owners in Los Angeles County. The…

A: According to the given information, we havePopulation proportion, p = 10% = 0.10Margin of error, E =…

Q: In a recent poll, 340 people were asked if they liked dogs, and 31% said they did. Find the margin…

A:

Q: In a recent poll, 260 people were asked if they liked dogs, and 13% said they did. Find the margin…

A:

Q: You're considering going to graduate school, and you would like to know how many people would…

A: From the provided information Sample size (n) = 29, People who recommend x = 9 The sample proportion…

Q: It is believed that 22.81% of U.S. homes have a direct satellite television receiver. How large a…

A: Suppose p is the true proportion of U.S. homes that have a direct satellite television receiver.

Q: In a recent poll, 120 people were asked if they liked dogs, and 29% said they did. Find the margin…

A:

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A:

Q: A researcher would like to know the proportion of the households that has a cable subscription. She…

A:

Q: A survey of 26 individuals found that they spent an average of $39.21 on exercise attire for the…

A: Confidence interval is an inference process which is used to estimate the population parameter. The…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: estimated population proportion P=0.36maximum error E=0.04z-score corresponding to the 98%…

Q: In a recent poll, 500 people were asked if they liked dogs, and 54% said they did. Find the margin…

A: Here we need to find the Margin of error corresponding to 95% confidence level.

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A:

Q: In a recent poll, 600 people were asked if they liked dogs, and 58% said they did. Find the margin…

A:

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. In an…

A: population proportion(p)=0.27Margin of error(E)=0.03confidence level=98%

Q: In a recent poll, 240 people were asked if they liked dogs, and 32% said they did. Find the margin…

A: Find z-critical value:…

Q: In a recent polI, 200 people were asked if they liked dogs, and 15% said they did. Find the margin…

A: From the provided information, Sample size (n) = 200 15% people said they like dogs that is p̂ =…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A:

Q: In a recent poll, 300 people were asked if they liked dogs, and 73% said they did. Find the margin…

A:

Q: n a recent poll, 330 people were asked if they liked dogs, and 30% said they did. Find the margin of…

A: given data, n=330p=0.30CI=0.99α=1-0.99=0.01ME=?

Q: In a recent poll, 260 people were asked if they liked dogs, and 67% said they did. Find the margin…

A: Given: p = 67%=0.67 n= 260 The value of z at a 90% confidence level is 1.645, which can be found by…

Q: In a recent poll, 260 people were asked if they liked dogs, and 32% said they did. Find the margin…

A: Find z-critical value:…

Q: In a recent poll, 250 people were asked if they liked dogs, and 21% said they did. Find the margin…

A: Sample size=n=250P=21%=0.2195% of confidence interval is

Q: Stanford University conducted a study of whether running is healthy for men and women over age 50.…

A: Given information: n = 695 P(Died) = 1.1%

Q: medicine. In a recent survey, 2500 teenagers are asked whether or not they use that particular…

A:

Q: In a survey of 3089 adults aged 57 through 85 years, it was found that 88.5% of them used at least…

A:

Q: In a recent poll, 170 people were asked if they liked dogs, and 24% said they did. Find the margin…

A:

Q: believed that 25.35% of U.S. homes have a direct satellite television receiver. How large a sample…

A: Given that  p = 25.35% = 0.2535 , E = 3.19% = 0.0319 99% confidence

Q: A research survey is commissioned to estimate the proportion of UK people who have traveled to…

A: Obtain the large sample size at 95% confidence level.   The large sample size is obtained below as…

Q: We want to know what percentage of the population have college degrees. We take a sample of 100…

A:

Q: In a recent poll, 530 people were asked if they liked dogs, and 95% said they did. Find the margin…

A: Given, n=530 p=0.95 Confidence level = 0.95 Critical value for 95% confidence level is 1.96.

Q: ement below is the best explanation? ere is 90% confidence that 21% of the adult citizens of the…

A: Given n=2500 Pcap=0.21 ME=0.044 Alpha=1-0.90=0.10 90% confidence level

Q: The Nielson television ratings used a sample of 2,000 homes to estimate the proportion of all homes…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.