The mean salary of an office clerk in America is $22,000 monthly with standard deviation equal to 5, 000 dollars. Random sample of 150 office clerks are selected.  What is the standard deviation or standard error of the sampling distribution? Choices is in the image provided.

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A: The given value of sample standard deviation is, s = 1.4 Using the standard deviation, the formula…

Q: Find the sample size need to find the Population Mean if the margin of error is $105, the confidence…

A: Solution: From the given information, confidence level is 0.95, σ=315 and E=105.

Q: Salaries for teachers in a particular elementary school district are normally distributed with a…

A: The properties of the normal distribution is,   The Normal distribution curve is and bell shaped…

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A: Let X be the incubation time for the chicks. It is given, X~N30, 22 To calculate P[24<X<26]…

Q: With the aid of a table, find the sample Standard Deviation of the following dataset: X = {2.2, 4.7,…

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Q: Given a uniform distribution with endpoints 4 and 22: What is the mean?        What is the…

A:

Q: The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants…

A: Sample points are 9.0,7.3,6.0,8.8,6.8,8.4,6.6. Sample size = n = 7.

Q: In a normal distribution, approximately ___ percent of the distribution falls between three standard…

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Q: average height of a giraffe in 10.3 feet with a standard deviation of 2.5 feet. If you were to…

A: We have given that  Sample size n = 50 Population mean =10.3 Population standard deviation = 2.5

Q: A population has a standard deviation of 18. On average, how much differece should exist for a…

A:

Q: Twenty-five percent of commercial airline accidents are caused by bad weather. If 300 commercial…

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

Q: Decide if the statement is True or False. A sampling distribution of sample means has a standard…

A: The standard deviation of the sampling distribution of sample means is given by:

Q: Find the mean, mode and standard deviation of the distribution.

A: Given: f(x)=1x2πe-12logx2      for x>0       =0  for  x<0

Q: A Survey among Seniors revealed that the number of hours spent Studying the week before final exams…

A: Give Standard deviations=7 Mean=25 P(x>40)=?

Q: Given a distribution with a mean of 90 and a standard deviation of 10, what is the probability of…

A: Given Information: μ=90 σ=10 x1=85 x2=110

Q: the mean and standard deviation of a population are 200 and 20 respectively. suppose the sample size…

A: Given data,μ=200σ=20If n=36the mean of the sampling distribution=?

Q: In 1955, Life Magazine reported that the 25 year-old mother of three worked, on average, an 80hour…

A: Solution: Given information: n= 85 Sample size  x= 83.5 Sample mean μ= 80 Populaion Mean s= 10…

Q: The number of hours worked per week for a sample of ten students is shown below. Student Hours 1 2…

A: Note- As per our policy we can answer the first 3 sub-parts of a question.   Given information- The…

Q: The standard deviation of a sampling distribution is smaller than the standard deviation of the…

A: The comparison of sd of sample to the sd of the population is as follows:

Q: 3. Given the sample variance of a distribution, explain how to find the standard deviation.

A: Variance is the measure of dispersion that calculates the average of the squared difference from the…

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A: Solution:Standard deviation:The variation between each observation from its mean is known as…

Q: The sample standard deviation for the cost is $

A: The sample standard deviation for the frequency distribution is, s=1n-1∑ifixi-x2 The sums are,…

Q: What is the standard deviation for the number of contacts in eight attempts?

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Q: For a population of leghorn chickens, the mean number of eggs laid per chicken is 7.3 with standard…

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Q: A hypothetical distribution for a population of test scores has a mean of 60.4, a median of 62.8,…

A: According to the given information in this question We need to find standard deviation of sampling…

Q: f the mean age of the managers in company is 52 years with a standard deviation of 2.5 years, what…

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Q: Suppose a population has three values 13, 17 and 24. What is the standard deviation of the sampling…

A: Given, Population values are 13, 17 and 24. Samples are drawn without replacement.

Q: Calculate the mean and standard deviation of this sample.

A: The provided information is x x2 27 729 30 900 30 900 30 900 31 961 32 1024 33 1089…

Q: What is the difference in meaning between the Standard Error of the Mean and and the Standard…

A: In statistics, a sample mean differs from the population's real mean; this difference is known as…

Q: An insurance company wants to know if the average speed at which men drive cars is greater than that…

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Q: We are going to calculate the standard deviation for the following set of sample data. 1) First,…

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Q: A physical fitness association is including the mile run in its secondary-school fitness test. The…

A: P(X<348)=?

Q: A positively skewed population has a mean of μ= 150 and a standard deviation of σ= 10. What is the…

A: Solution: From the given information, µ = 150 and σ = 10.

Q: What is the other term for the standard deviation of the sampling distribution of the sample means O…

A: We have given that the statement about to the standard deviation of sampling distribution of sample…

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A: We have to find out given proportion..

Q: A sample of weights (in pounds) for six 12-year- olds is given below: 90 75 85 85 97 91 Find the…

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Q: reasonably regarded as a a sample from a standard deviation

A: Given: In a sample of 400 male students, it was observed that they have a mean height (of 55+18)…

Q: High school students across the nation compete in a financial capability challenge each year by…

A: Given: Students who score in the top 19 percent are recognized publicly for their achievement by the…

Q: The average speed of 1500 vehicles traveled on a stretch of highway that day is 67 miles per hour…

A:

Q: 4. The variance of a data set is 3410.56. Find the standard deviation for the data set.

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Q: In a normal distribution, if the mean is ten and the standard deviation is one, what would the…

A:

Q: If the population standard deviation is 20 and the sample size is 25, then what is the value of the…

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Q: Determine the point estimate, p and the sample standard deviation, S5.

A: here n = 439 x= 162 here x= no of students working full time while going to school

Q: Find the sample standard deviation for the following scores: x = 2,45,2,6,3,2,9,10,11,34,64

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Q: A nursery sells trees of different types and heights. These trees average 60 inches in height with a…

A: Given data, μ=60σ=16n=75 standard deviation for the sample mean(σx)=?

Q: The average speed of 64 random cars traveling on a certain highway was 80 km/h and the sample…

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Q: As the sample size n increases, the standard deviation of the sampling distribution decreases.

A: The standard error (SE) of a statistic is approximately the standard deviation of a statistical…

Q: High school students across the nation compete in a financial capability challenge each year by…

A: In general, z-score denotes the number of standard deviations from the mean.

Q: What is the sample mean? What is the standard deviation?

A: Use EXCEL Procedure for finding the value of sample mean.   Follow the instruction to obtain the…

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.