In a sample of 226 Americans, the mean annual sugar consumption was 148 pounds with a standard deviation of 18 pounds. We want to use bootstrapping methods to construct a 95% confidence interval to estimate the mean in the population. If we were to take 5,000 bootstrap samples and record the mean of each, what would we expect to be the mean of that bootstrap sampling distribution?

Q: Find the value of ta for a 99% confidence interval when sample size is 30

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: what would be the 90% confidence interval of the true proportion of young adults who have received…

A: Given that sample size is n = 190 And the sample proportion is 70% = 0.7 At 90% confidence level,…

Q: Suppose, according to a 1990 demographic report, the average U. S. household spends $90 per day.…

A: Sample mean = $84.5.Sample standard deviation, s is $14.5.The sample size, n is 30.

Q: Find a 90% confidence interval for the population mean, if the sample size is 58, the sample mean is…

A:

Q: From a simple random sample of 400 of the 1,395 colleges in our population, it was found that…

A: Given : 1395 colleges in our population  Population Size (N) = 1395 400 colleges selected randomly…

Q: Suppose a sample of 30 Statistics students are given an IQ test. If the sample has a standard…

A: Given n=30, sample standard deviations s=12.23

Q: If a school district takes a random sample of 80 Math SAT scores and finds that the average is 421,…

A:

Q: f the population standard deviation of AAA batteries (with a polulation mean of 9 hours) is 0.5…

A:

Q: In a survey, 24 people were asked how much they spent on their child's last birthday gift results…

A:

Q: The population standard deviation for the height of college hockey players is 3.4 inches. If we want…

A:

Q: The 2010 General Social Survey asked the question: “For how many days during the past 30 days was…

A: a.It is given that,The sample size, n is 1,151.It is given that the 95% confidence interval is…

Q: In an effort to estimate the mean amount spent per customer for dinner at a major Atlanta…

A: From the provided information, Sample size (n) = 49 Sample mean (x̅) = $24.80 Population standard…

Q: A college admissions officer takes a simple random sample of 96 entering freshmen and computes their…

A: We have to find out lower confidence interval...

Q: 6. A food snack manufacturer samples 7 bags of pretzels off the assembly line and weighs their…

A: The confidence interval measure the range where the true population parameter exist. If the…

Q: Suppose that you will be taking a random sample from a population and that you intend to find a 95%…

A: Solution: The confidence interval for the population mean is calculated by using the following…

Q: From the scores in subject statistics for 8 students, it was found that the mean score is 73 and the…

A: We have given that,  Sample mean (x̄) = 73,  standard deviation (s) = 5.15 and sample size (n) = 8…

Q: If a school district takes a random sample of 80 Math SAT scores and finds that the average is 497,…

A:

Q: If a school district takes a random sample of 89 Math SAT scores and finds that the average is 497,…

A: From the provided information, Sample size (n) = 89 Sample mean (x̅) = 497 Population standard…

Q: Find the smallest sample size needed to estimate the population proportion for a margin of error of…

A:

Q: If the sample mean is 70 and the standard error of the sample mean is 8, what will be the 90%…

A:

Q: A pollster asked a random sample of 269 students about their savings. The average amount of money…

A: The sample size is 269, sample mean is $258, and sample standard deviation is $145. The degrees of…

Q: Find the margin of error for a​ 95% confidence interval for estimating the population mean when the…

A: Sample S.D = s = 110

Q: Identify the y-score for a 99% confidence interval if the sample size is 35.

A: We have to find critical value for given data..

Q: An investigator computes a 95% confidence interval for a population mean on the basis of a sample of…

A: To find half of width, We need to calculate 4 times the sample Size.

Q: A pollster asked a random sample of 269 students about their savings. The average amount of money…

A:

Q: If a school district takes a random sample of 89 Math SAT scores and finds that the average is 494,…

A:

Q: If a school district takes a random sample of 71 Math SAT scores and finds that the average is 460,…

A: Given : n = 71 Mean = 460 Standard deviation = 100 Confidence level = 99%

Q: If you construct a 90% confidence interval of the mean amount of money a student receives just from…

A: Given 90% confidence interval of the mean amount of money a student receives just from financial aid…

Q: How large a sample should be used to provide a 95% confidence interval with a margin of error of 4,…

A:

Q: Market research indicates that a new product has the potential to make the company an additional…

A: It is given that,Sample mean = $3.8 million.Sample standard deviation, s is $1.8 million.The sample…

Q: If a school district takes a random sample of 66 Math SAT scores and finds that the average is 480,…

A:

Q: Suppose you observe 62 data points from a distribution with standard deviation 2.1, and you…

A: Given, n=62 data points standard deviation SD= 2.1, calculated a 92% two-sided confidence interval…

Q: Identify the y-score for a 95% confidence interval if the sample size is 15.

A: The confidence level is 0.95.

Q: A sample of 14 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If…

A:

Q: For a given sample, a 50% confidence terval for the population mean is narrower than a 90%…

A: For  a given sample size and population standard deviation, the interval estimation of the…

Q: If the sample size is held constant, which of the following will produce the widest 90%  confidence…

A:

Q: A sample of 256 managers reveals a sample mean of $45,420. The standard deviation of the sample is…

A: Given: A sample of 256 managers has a sample mean of $45,420 and a standard deviation of $2,050.…

Q: What is the minimum required sample size to make a 96% confidence interval for a population mean if…

A: Margin of error=E=2 Standard deviation=σ=12 96% confidence interval  E=Zc×σ/√n n=sample size

Q: A sample data set, n = 115, shows human body temperatures with a mean of 99.6ºF. If the standard…

A: Given Data: n=115x¯=99.6σ=0.75   z-value corresponding to 99% Confidence Interval=2.576

Q: Suppose a 90 percent confidence interval to estimate a population proportion was calculated from a…

A: The confidence interval for proportion can be calculated as follows:

Q: Given a certain 98% confidence interval is (0.05,0.29), what is the exact value of the margin of…

A: We have given that 98% confidence interval is (0.05,0.29) Since we know that Lower bound = x̅ - E…

Q: Identify the at-score for a 99% confidence interval if the sample size is 70.

A: givensample size(n)=70α=1-0.99=0.01

Q: If a school district takes a random sample of 55 Math SAT scores and finds that the average is 422,…

A: It is an important part of statistics . It is widely used .

Q: The average weight of 35 randomly compact automobiles was 2680. The sample standard deviation was…

A: From the provided information, Sample size (n) = 35 Sample mean (x̅) = 2680 Sample standard…

Q: An airline transports over 10 000 passengers daily, and the airline is curious what proportion of…

A: Critical value: Using Excel formula "=NORM.S.INV(1-(0.1/2))", the z-value is obtained as 1.645.

Q: If a school district takes a random sample of 80 Math SAT scores and finds that the average is 442,…

A: Given that, Sample size n=80 Sample average x¯=442 Population standard deviation σ=100

Q: Suppose that based on a random sample, a 95% confidence interval for the mean hours slept (per day)…

A:

Q: The average weight of 35 randomly selected compact automobiles was 2680 pounds. The sample standard…

A: From the provided information, Sample size (n) = 61 Sample mean (x̅) = 2680 Sample standard…

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.