Suppose you wish to find the average annual salary for school teachers in the United States. You pooled a random sample and found the average value to be 53145. You know the ponulation standard deviation is

Q: Suppose that you are interested in determining the average height of a person in a large city. You…

A: Solution: Given information: n= 400 Sample size  x=63 inches Sample mean s= 6 inches Sample standard…

Q: A particular fruit's weights are normally distributed, with a mean of 783 grams and a standard…

A: Given: Population mean (µ) = 783 Population standard deviation (σ) = 20 Sample size (n) = 24…

Q: A particular fruit's weights are normally distributed, with a mean of 639 grams and a standard…

A: The population mean and standard deviation are 639 grams and 36 grams respectively. It is given that…

Q: A particular fruit's weights are normally distributed, with a mean of 526 grams and a standard…

A: Given that, Mean = 526 Standard deviation = 36 Sample size = 7

Q: The lengths of pregnancies are normally distributed with a mean of 280 days and a standard deviation…

A:

Q: If the number of degrees of freedom for a chi-square distribution is 21, what is the population mean…

A: Given: Degree of freedom = 21

Q: A particular fruit's weights are normally distributed, with a mean of 657 grams and a standard…

A: Let X: a particular fruit's weightsX~N(μ,σ)where mean(μ)=657 grams  standard deviation(σ)=38 grams…

Q: A particular fruit's weights are normally distributed, with a mean of 702 grams and a standard…

A: Introduction: Define X as the random variable of interest here, denoting the weight of a randomly…

Q: oby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A:

Q: Give your answer to the nearest gram.

A: From given data we have : μ=678,σ=8,n=13

Q: A particular fruit's weights are normally distributed, with a mean of 222 grams and a standard…

A: Solution: Let X be the  fruit's weights are normally distributed with mean 222 grams and standard…

Q: t random, then 8% of the time, their mean weight will be greater than how many grams? Give your…

A: According to the sum, A particular fruit's weights are normally distributed, with a mean of 596…

Q: A particular fruit's weights are normally distributed, with a mean of 405 grams and a standard…

A: The normal distribution is the most useful theoretical distribution for continuous variable.  For…

Q: A particular fruit's weights are normally distributed, with a mean of 724 grams and a standard…

A: Given Mean=724 Standard deviation=9 n=18

Q: A particular fruit's weights are normally distributed, with a mean of 256 grams and a standard…

A: given data  normal distribution μ = 256σ = 29n = 8P(x¯>z) = 0.17

Q: If you have a population standard deviation of 10 and a sample size of 4, what is your standard…

A: Given,population standard deviation(σ)=10sample size(n)=4

Q: Suppose that another sample of resting heart rates for five Math students was obtained: 72, 68, 66,…

A: From the given data we want to know the data value .

Q: The age distribution of a sample of 5000 persons is bell shaped with a mean of 40 years and a…

A: GivenMean(μ)=40standard deviation(σ)=12

Q: The cost of textbooks is normally distributed with a mean of $232. You do not know the population…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 421 grams and a standard…

A: Given Population Mean, μ=421 Population standard deviation, σ=20 Sample size, n=3

Q: Suppose that heights of adult men in the United states are normally distributed with a mean of 71…

A:

Q: For a standardized exam at your school, the mean score is 103 with a standard deviation of 16. You…

A: Population mean Hypothesized value of population standard deviation Sample size Sample mean Sample…

Q: Suppose exam scores in a statistics class are normally distributed with a mean of 89 and standard…

A: Given data, Mean=89 sd=8 P(X<x)=0.45 x=?

Q: fitness center is interested in finding a 95% CI for the mean number of days per week that Americans…

A: Given: Xˉ=3.2 s=2.6 n=248  Confidence level = 95% As the population standard deviation is not known,…

Q: A particular fruit's weights are normally distributed, with a mean of 208 grams and a standard…

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

Q: A particular fruit's weights are normally distributed, with a mean of 465 grams and a standard…

A: Solution: Let X be the weight of a particular fruit. From the given information, X follows normal…

Q: All the houses in Stanton county have a mean size of 1650 square feet with a standard deviation of…

A:

Q: Suppose a claim is made that the mean age of members of a golf club is 52 years. The population…

A: Given: μ = 52 σ = 6 n = 50 X = 56 Formula Used: Test-statistic Z = X-μσn

Q: A particular fruit's weights are normally distributed, with a mean of 431 grams and a standard…

A: Let X be the mean weight in grams. X is normally distributed with mean, μ=431 grams and standard…

Q: A particular fruit's weights are normally distributed, with a mean of 678 grams and a standard…

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

Q: A particular fruit's weights are normally distributed, with a mean of 648 grams and a standard…

A: The population mean and standard deviation are 648 grams and 16 grams respectively. It is given that…

Q: If you pick 25 fruits at random, then 9% of the time, their mean weight will be greater than how…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 284 grams and a standard…

A: From the provided information, Mean (µ) = 284 grams Standard deviation (σ) = 32 grams X~N (284, 32)

Q: A published study says that 95 percent of American children are vaccinated against measles, with a…

A: A t-test is used to determine the test if there is any significance difference between two mean…

Q: The latest available data showed health care spending were $8086 per person in the United States…

A: Givenpopulation mean = $8086population standard deviation = $2500sample size = 100Health care…

Q: In a standardized exam the mean score is 400 with a standard deviation of 50. If a random sample of…

A: Given that  μ= 400 , σ= 50 , n = 25