The time a postal clerk spends with his or her customer has an exponential distribution with a mean of four minutes. What is the value of parameter in the exponential distribution? 0.25 O 1 4 Cannot compute with given information

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A: GivenMean(μ)=26.2standard deviation(σ)=5.8

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Q: 7. Let f(x; µ, 0) be the pdf of a normally distributed random variable with parameters µ and o. (a) ...

A: PDF of normal distribution with parameter µ and σ is given by, fx;µ,σ = 1σ2πe-x-μ22σ2 ; x∈R a. Note ...

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A: The Chi-Square test of independence is used to analyze the frequencies of two variables with multipl...

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Q: Construct the confidence interval for the population mean u. c=0.95, x = 15.7, o = 7.0, and n= 75 A ...

A:   Given problem Given that   c = 0.95 x̄ = 15.7 σ = 7.0 n = 75  

Q: From the data given below find : (a) the two regression equations. (b) the coefficient of correlatio...

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Q: Example 21. Prepare a bivariate frequency distribution for the following data for 20 students : Mark...

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Q: Illustration 11.17. Compute the Pearsonian measure of skewness for the following distribution: Size ...

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Q: 128 of all Americans live in poverty. If 31 Americans are randomly selected, find the probability th...

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Q: Given the table of probability mass function below, solve for the variance. 2 3 4 6. P(X= x) 0.05 0....

A: The probability mass function is, X 1 2 3 4 5 6 P(X = x) 0.05 0.05 0.15 ...

Q: Use the data in the following table, which lists survey results from high school drivers at least 16...

A: Solution-: We have following table:     Drove when driving Alcohol Total     Yes No Tested wh...

Q: In each of the following examples, identify the sampling method being used and explain why. 1. A so...

A: Sampling method can be of 2 types as given below: Probability sampling method Non-probability sampl...

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A: As per our guidelines we can solve first three sub part of question and rest can be reposted. Soluti...

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A: Note: (1). According to Bartleby expert guidelines, we can answer only first question with their thr...

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A: We have given that.   X~N( μ , ?^2 )   μ=5 , ?=6   Z-score =( x - μ )/?

Q: Find the probability of showing heads on both tosses

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Q: Consider the following hypothesis test. Ho: P20.75 Haip< 0.75 A sample of 300 tems was selected. Com...

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Q: Assuming boys and girls are equally likely, find the probability of a couple having a baby boy when ...

A: Given The data is as follows: Birth of boys and girls are equally likely.

Q: , the cdf is None of the above is correct O 1 4x^2

A: We have given that  f(x) = 8x,        0&lt;x&lt;0.5

Q: The following table gives indices of industrial production of registered Calculate the value of the ...

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Q: Researches have conducted a survey of 2000 coffee drinkers asking how much coffee they drink in orde...

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Q: The Credit Risk Department of a major bank estimates the default rate on loans under $10,000 to ...

A: Given: p=2%=0.02n= 1600

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A: Here AS per policy I have calculated first main question  Here check condition for binomial theorem 

Q: (d) P(X > 7) = i (e) Determinex such that P(X < x) = 0.99. X = i

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Q: "Given a standard normal distribution with mean =80 and standard deviation = 36, find P(X>76)." A 0....

A: Given that  u = 80 Sigma  = 36 X = 76  Find P(x&gt; 76) = ???  By using standard normal distribution...

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Q: In a genetics experiment on peas, one sample of offspring contained 353 green peas and 474 yellow pe...

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Q: A study is undertaken to test the research hypothesis that a student’s knowledge of Thunder Bay impr...

A: Given dataA study is undertaken to test the research hypothesis.A series of random slides are prepar...

Q: Illustration 12.11. Given below are the figures of production in thousand quintals of a sugar factor...

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Q: On a recent quiz, the class mean was 77 with a standard deviation of 4.2. Calculate the z-score (to ...

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Q: From the following data calculate first four moments and also find the value of r, Monthly profits N...

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Q: Use the range rule of thumb to identify the values that are significantly low, the values that are s...

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Q: The proportion p of residents in a community who recycle has traditionally been 60% . A policy mak...

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Q: The following table gives indices of industrial production of registered Calculate the value of the ...

A: We have given that data. Formula used  coefficients of correlation. r= SSXY /sqrt( SSXY × SSYY)

Q: . Aurah wanted to know the distribution of the number of students with blood type O. She randomly se...

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Q: A recent study found that 40% of all people over age of 62 wear hearing aids. If a random sample of ...

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Q: "The weights of 1,000 children, in average, is 54kg with standard deviation of 17kg. Suppose the wei...

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Q: From the adult male population of four large cities, random sample of sizes given below were taken a...

A: Solution is given: