explain calculatior functions as well please.Homework Answers
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explain calculatior functions as well please.
Find the indicated probability or percentage for the sampling error....
5. MNM Corporation gives each of its employees an aptitude test. The scores on the test...
5. MNM Corporation gives each of its employees an aptitude test. The scores on the test are normally distributed with a mean of 75 and a standard deviation of 15. A simple random sample of 25 is taken from a population of 500. a. What are the expected value, the standard deviation, and the shape of the sampling distribution of x? b. What is the probab]lity that the average aptitude test in the sample will be between 70.14 and 82.14?...
Business and Economic Statistics 3. MNM Corporation gives each of its employees an aptitude test. The...
Business and Economic Statistics
3. MNM Corporation gives each of its employees an aptitude test. The scores on the test are normally distributed with a mean of 75 and a standard deviation of 15. A simple random sample of 25 is taken from a population of 500. What are the expected value, the standard deviation, and the shape of the sampling distribution of x? What is the probability that the average aptitude test in the sample will be between 70.14...
Use the central limit theorem to find the mean and standard error of the mean of...
Use the central limit theorem to find the mean and standard error of the mean of the indicated sampling distribution. Then sketch a graph of the sampling distribution. The per capita consumption of red meat by people in a country in a recent year was normally distributed, with a mean of 105 pounds and a standard deviation of 37.3 pounds. Random samples of size 20 are drawn from this population and the mean of each sample is determined.
Use the central limit theorem to find the mean and standard error of the mean of...
Use the central limit theorem to find the mean and standard error of the mean of the indicated sampling distribution. Then sketch a graph of the sampling distribution The per capita consumption of red meat by people in a country in a recent year was normally distributed, with a mean of 120 pounds and a standard deviation of 39.7 pounds. Random samples of size 18 are drawn from this population and the mean of each sample is determined. 0
Use the central limit theorem to find the mean and standard error of the mean of...
Use the central limit theorem to find the mean and standard error of the mean of the indicated sampling distribution. Then sketch a graph of the sampling distribution (optional) The per capita consumption of red meat by people in a country in a recent year was normally distributed, with a mean of 106 pounds and a standard deviation of 39.5 pounds. Random samples of size 19 are drawn from this population and the mean of each sample is determined
Find the sampling error: u = -5, B = -2.5, n= 100 -7.5 -2.5 0.25 2.5...
Find the sampling error: u = -5, B = -2.5, n= 100 -7.5 -2.5 0.25 2.5 Find M, and o, the mean and standard deviation of the sampling distribution of x: H= 25, 0=5, n= 10. M =25, o,=0.5 M =25, o,=1.58 M=2.5, o,=0.5 My=7.91, o,=1.58 B) A) Assume that the random variable X is normally distributed with mean = 52 and standard deviation = 10. Let n = 25. Find P(x>50). -0 0.16 0.84 D) A) B) C) D)...
need answers!!! i Find the indicated probability by using the complementation rule. 13) The age distribution...
need answers!!!
i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the...
5.4.17 Question Help The population mean and standard deviation are given below. Find the required probability...
5.4.17 Question Help The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 70, find the probability of a sample mean being greater than 220 if u = 219 and 6 = 3.5. For a sample of n = 70, the probability of a sample mean being greater than 220 if u = 219 and o = 3.5 is (Round...
1. Explain the relationship between sample size and standard error. 2. You have a normal population...
1. Explain the relationship between sample size and standard error. 2. You have a normal population with a u = 50 and o = 9. You obtain all possible random samples, each with n = 30, from this population and calculate each sample's mean. What will the average value of all the sample means be? a) 50 b) 5.56 c) 30.49 d) Cannot tell without more information 3. You are sampling from a distribution of scores that is positively skewed....
#3 One of the most common ways of measuring intelligence is the IQ test. IQ scores...
#3 One of the most common ways of measuring intelligence is the IQ test. IQ scores in the US population have an average of µ = 100 and a standard deviation of σ = 15. Suppose a researcher wanted to test whether socioeconomic status (SES) has an effect on IQ scores. The researcher takes a random sample of n = 100 people, selected from a list of the 1000 richest people in the United States. a. Based on this information,...
5. MNM Corporation gives each of its employees an aptitude test. The scores on the test are normally distributed with a mean of 75 and a standard deviation of 15. A simple random sample of 25 is taken from a population of 500. a. What are the expected value, the standard deviation, and the shape of the sampling distribution of x? b. What is the probab]lity that the average aptitude test in the sample will be between 70.14 and 82.14?...
Business and Economic Statistics
3. MNM Corporation gives each of its employees an aptitude test. The scores on the test are normally distributed with a mean of 75 and a standard deviation of 15. A simple random sample of 25 is taken from a population of 500. What are the expected value, the standard deviation, and the shape of the sampling distribution of x? What is the probability that the average aptitude test in the sample will be between 70.14...
Use the central limit theorem to find the mean and standard error of the mean of the indicated sampling distribution. Then sketch a graph of the sampling distribution The per capita consumption of red meat by people in a country in a recent year was normally distributed, with a mean of 120 pounds and a standard deviation of 39.7 pounds. Random samples of size 18 are drawn from this population and the mean of each sample is determined. 0
Find the sampling error: u = -5, B = -2.5, n= 100 -7.5 -2.5 0.25 2.5 Find M, and o, the mean and standard deviation of the sampling distribution of x: H= 25, 0=5, n= 10. M =25, o,=0.5 M =25, o,=1.58 M=2.5, o,=0.5 My=7.91, o,=1.58 B) A) Assume that the random variable X is normally distributed with mean = 52 and standard deviation = 10. Let n = 25. Find P(x>50). -0 0.16 0.84 D) A) B) C) D)...
need answers!!!
i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the...
5.4.17 Question Help The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 70, find the probability of a sample mean being greater than 220 if u = 219 and 6 = 3.5. For a sample of n = 70, the probability of a sample mean being greater than 220 if u = 219 and o = 3.5 is (Round...
1. Explain the relationship between sample size and standard error. 2. You have a normal population with a u = 50 and o = 9. You obtain all possible random samples, each with n = 30, from this population and calculate each sample's mean. What will the average value of all the sample means be? a) 50 b) 5.56 c) 30.49 d) Cannot tell without more information 3. You are sampling from a distribution of scores that is positively skewed....
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