random sample of dogs studied by a veterinarian was found to have the following lifespans, in years: {14, 18, 6, 9, 13}. The veterinarian inquired about each dog’s mother and found the mothers’ lifespans to be: {10, 19, 13, 8, 24}. What is the sample covariance between offsprings lifespans and mothers’ lifespans?   Consider X, a random variable with a standard normal distribution. What is the probability that X is greater than -0.4?

Q: A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage u…

A: Solution: Let X be the hourly wage. From the given information,

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A: Accept Ho Reject Ho Ho true correct conclusion type I error Ho false type II error correct…

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A: The objective of this question is to find the probability that the sample mean of workdays with no…

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A: Given that p = 0.01 ,n=133 What is the sampling distribution of the sample proportion? What is the…

Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Sample mean (x̅1) = 42.8Sample mean (x̅2) = 40.9Sample size (n1) = 34Sample size (n2) = 41Standard…

Q: (a) What are the null hypothesis H, and the alternative hypothesis H, that should be used for the…

A:

Q: If the standard deviation of all 25 randomly selected samples from a normally distributed population…

A: We hvae  to find sample mean and population variance..

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A: A) The hypothesized mean is 8.16.

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Q: Here is a sample of scores: 6, 8, 5, 1, 3, 7, 7, 10, 9, 4   A) What is the variance?  B) What is…

A:

Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Solution

Q: he results of a statistics examination follow an approximately normal distribution with a mean of 68…

A: Given data,Mean μ=68Variance σ2=64sd     σ=8P(X>82)=?

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A: The following information has been provided: For Males : Sample Mean 1 (Xˉ1)(\bar X_1)= 282282…

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A: Denote μ1, μ2 as the population mean numbers of math classes for College A and B, respectively.

Q: is known that college students at a local community college study 12 hours per week with a standard…

A: Mean=12 Standard deviations=5 Sample size=9

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A: Given that: Population mean, μ=8.14 Mean and standard deviation of the sample are: x¯=7.87s=1.25

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A:

Q: (a) Calculate the sampling error at 95% confidence level   (b) Construct a 95% confidence interval…

A: Given that  Sample size n =25 Sample mean =53 Population standard deviation =5.5 NOTE:- According to…

Q: A Union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A: Given: Population mean μ = 8.25 Sample mean X = 7.88 Sample standard deviation S = 1.25

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A: Solution: Given information: n= 12 Sample size  μ= 60 Population mean σ= 8 Population standard…

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, µ, of…

A: Solution

Q: 10- 10- 5- 5- 0- 0.5 5.5 10.5 15.5 20.5 25.5 30.5 35.5 40.5 45.5 5.5 10.5 15.5 20.5 25.5 30.5 35.5…

A: Given : For region A: Mean = $33.07 Standard deviation = $10.22 For region B : Mean = $22.93…

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Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Given data,n1=40x1=46.6σ1=4.6n2=45x2=48.8σ2=2.4Compute value of test statistic?

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

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A: here as per guidelines i have calculated 3 subparts , repost for remaining here sample mean = 53…

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Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, μ, of…

A: Solution Given That, A union of restaurant and foodservice workers would like to estimate the mean…

Q: 1.1, 14.3 39

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A: Mean()=73Standard deviation()=0.6Sample size(n)=40

Q: what is the mean and stanadard deviation of a uniform (6,15) random variable?

A:

Q: A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage,…

A: Given Data:Meanμ =$8.16Sample mean x =$8.46Sample standard deviation s =$1.15Type -I error:Rejecting…

Q: A researcher has a sample of 49 arctic plants, and wants to describe the average plant height. The…

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Q: p1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Ho : Ha =…

A: here test there is a significant difference between the IQs of two group  and it is paired data

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A:

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, u, of…

A: Given that