A population has a mean u=71 and a standard deviation a=20. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 246. (Simplify your answer.)

Q: The mean and Standard deviation of a distribution are 90 and 6.5 respectively. Find the coefficient…

A:

Q: A population has a mean μ = 88 and a standard deviation a=7. Find the mean and standard deviation of…

A: The mean is 88 and the standard deviation is 7.

Q: Calculate the sample standard deviation for this data set: 88, 73, 91.

A: From the provided information, 88, 73, 91 The sample mean of the data can be obtained as:

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: Solve for the range, variance, and standard deviation of this data: 40, 34, 50, 46, 47, 39.

A: Given data set 40,34,50,46,47,39

Q: Q2. Find the standard deviation for the data: 5,10,7,12,0,20 7

A: We have to find the standard deviation for the data: 5,10,7,12,0,20

Q: A population has a mean μ = 71 and a standard deviation a=18. Find the mean and standard deviation…

A: List of formulae :  Mean of sampling distribution of the sample means :  μx¯ =μ Standard deviation…

Q: The mean of the sample means equals The population standard deviation. The population mean. The…

A: As per central limit theorem Mean of sample means  is x̅ = μ x̅ = sample mean μ = Population mean

Q: a. the range b. the variance c. the standard deviation

A: The given frequency distribution is Class interval Frequency (f) Mid value (x) fx fx2 7-9 2 8…

Q: (Simplify your answer.) (Simplify your answer.)

A: It is given that  Mean, μ = 73 Standard deviation, σ = 6 Sample size, n = 36

Q: A statistician was exploring a set of data representing a group of 121 women.  The mean was 49 and…

A: Sample size, n = 121 Mean = 49 Variance σ2 = 9 We have to find the standard deviation.

Q: A population has a mean u 90 and a standard deviation a 18. Find the mean and standard deviation of…

A: The mean is 90 and the standard deviation is 18.

Q: A population has a mean μ = 82 and a standard deviation = 24. Find the mean and standard deviation…

A: Given that the distribution is normal distribution. Mean = 82 Standard deviation = 24 Sample size =…

Q: Given the sample data 85 85 85 85 85 85 85. Find the variance and the standard deviation of the…

A: Let X denote the sample data. The standard deviation of the data can be calculated as SD =…

Q: Calculate range, mean, variance, and standard deviation using the data on the number of injuries…

A: Arrange the data set in ascending order are.  0,0,0,1,1,1,2,2,3,4,4,5,8,9,11 Sample size n =15

Q: A population has a mean u = 86 and a standard deviation o = 28. Find the mean and standard deviation…

A:

Q: A population has a mean u= 71 and a standard deviation a= 27. Find the mean and standard deviation…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: Which one of the following is an example of a point estimate? Select one: a. the sample mean b.…

A: The sample mean is the point estimate of the Population mean. We estimate the Population mean on the…

Q: Use the standard deviation values of the two samples to find the standard deviation of the sample…

A:

Q: A population has a mean = 86 and a standard deviation a=21. Find the mean and standard deviation of…

A: Given information: The sample size is n =258. Population mean, μ=86. Population standard deviation,…

Q: A population has a mean u=85 and a standard deviation a=22. Find the mean and standard deviation of…

A: Assume that the variable of interest is X.

Q: unts how many meteors she se

A:

Q: A population has a mean u= 88 and a standard deviation o = 18. Find the mean and standard deviation…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: Find the standard deviation of the set of data below. y+1, y+2, y+5, y+9, y+8.

A:

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A: Solution

Q: A population has a mean u=79 and a standard deviation o = 12. Find the mean and standard deviation…

A: Mean = 79 Standard deviation = 12 Sample size, n = 36

Q: coefficient of variation is 30%. Its mode Is 88. Find the mean and the median.

A: Here given, Pearson's coefficient of SKEWNESS = 0.4 Coefficient of variation  = 30% = 0.30 Mode = 88…

Q: The instructor takes a random sample of size from the population data and obtains the following…

A: We have given that,  The data set is,  405, 385, 495, 385, 555, 470 Then,  We will find the sample…

Q: A population has a mean u=87 and a standard deviation o= 28. Find the mean and standard deviat…

A:

Q: A population has a mean u=79 and a standard deviation o = 12. Find the mean and standard deviation…

A: Given,sample size(n)=36mean(μ)=79standard deviation(σ)=12

Q: A population has a mean μ = 70 and a standard deviation o=36. Find the mean and standard deviation…

A: Mean=70 Standard deviations=36 Sample size =81

Q: A population has a mean u =78 and a standard deviation o = 24. Find the mean and standard deviation…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: tain population, the mean score on a test is 420.  The standard deviation is 105. If the…

A: a. The z score can be calculated as: z=X-uσ=385-420105=-0.333 b. The z score can be calculated as:…

Q: A population has a mean u= 72 and a standard deviation o = 24. Find the mean and standard deviation…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: A population has a mean p = 84 and a standard deviation o = 9. Find the mean and standard deviation…

A: Determine the sampling distribution of the sample mean for sample of size 81. The sampling…