A random sample of size 16 was collected which gave the sample mean of 7 and a sample variance of 11. Which of these is the distribution of this sample mean? A. X~N(7,8) C. X~N(7,0.5) B. X~N(µ, 0.5) D. X~N(7,11)

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A:

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A: Let A = oil is also need to be changedB= a new filter is neededP(A)=0.25  P(B)=0.40P(A∩B)=0.14

Q: 67. Calculate the geometric mean of the following data : Wages 55-65 65-75 75-85 85-95 95-105 105-11...

A:

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A: Solution is given in the picture:

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A: 1) The degrees of freedom is 20, the value of α is 0.05 and the distribution is right tailed distrib...

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A: Here we have given that the data set 4.0, 3.8, 3.7, 3.6, 3.6, 3.2, 3.1, 3.0, 2.9, 2.8, 2.5, 2.2, 2.1...

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Q: S(5x + 4x' + 3x) dx + 4x + 3r Example 65.

A:

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A: Given, 

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A: GivenThe z score measures

Q: Mixed curve is a type of frequency curve True False O

A:

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A:

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A: Given : p = 0.66 n = 34

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A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

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A: For the given each of the five statements we need to choose the correct sampling method.  

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A: Given data,8,6.6,9,7.4,6.1,8.9,10,8.1,8.4,8.3,8.3,8.4,4.9,7.8,7.4,6.3Population standard deviation i...

Q: Consider the experiment of tossing an unbiased coin twice. Find the probability of getting a tail in...

A: if a coin is tossed two times than the possible outcomes areHH , HT, TH , TT

Q: 7 Example 69. The geometric mean of 10 observations of a certain variable was calculated as 16.2. It...

A: Geometric mean is given by, G=(X1*X2*.....Xn)1/n G= (∏Xi)1/n  

Q: 55-59 12 60-64 10 65-69 6 70-74 1 (a) What is the frequency for CEO ages between (but not including)...

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A:

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A: Solution-: The cumulative probability of a chi-square distribution runs left to right 0 is on the ri...

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A: We have to expand terms for mentioned questions,  We will use rule of summation. 

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A: Solution is given:

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A: The population standard deviation is 2.2.

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Q: Example 4.14 Consider the following two-parameter normal family 1 fx: 4, a) = -00 0 Find the consist...

A: At first consider the random sample of size n...............

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Q: Define the following probability mass function: n 10 20 PN(n) 0.02 30 40 50 60 70 80 90 100 0.06 0.1...

A: Given data is  n 10 20 30 40 50 60 70 80 90 100 PN(n) 0.02 0.06 0.10 0.14 0.18 0.18 0.14 0.10 0...

Q: Use the cdf to determine E[X].

A: The E(X) using the cdf is calculated as E(X) = ∫(1 - F(x))dx Note : This formula can only be applied...

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A: Formula : CI=point estimate ± ME

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A: P(Having a boy) = 1/2, P(Having a girl) = 1/2 P(Having atleast one Girl) = 1 - P(Having no girl) P(H...

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Q: Q1: The data in the following table are the mathematic degrees of 150 pupil Mathematic 10-19 20-29 3...

A: Answer: This question some options are missing don't worry am answered From given frequecny distribu...

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A: ( 3 ) For the given data perform  hypothesis test for Anova: Single Factor

Q: A símple random sample of size 100 has mean 15, the population variance being 25. Find an interval e...

A:

Q: the mean age of 20 youth volunteers in a community project is 17.5 years with a standard deviation o...

A: Given,sample size(n)=20sample mean(x¯)=17.5standard deviation(S)=2degrees of freedom(df)=n-1df=20-1=...

Q: Consider the following two-parameter normal family with PDF 1 f(x; μ, σ) = - o 0. V2no /2n0 Find th...

A:

Q: Insurance: An insurance company sells a 1-year term life insurance policy to an 76-year-old woman. T...

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Q: If 2% of electric bulbs manufactured by a certain company are defective. Find the probability that i...

A: Solution is given: