What is the difference between commuting patterns for students and professors. 11 students and 14 professors took part in a study to find mean commuting distances. The mean number of miles traveled by students was 5.6 and the standard deviation was 2.8. The mean number of miles traveled by professors was 14.3 and the standard deviation was 9.1. Construct a 95% confidence interval for the difference between the means. What assumption have we made?

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A: "Since you have asked multiple question,we will solve the first question for you.If you want any…

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A: given data  n = 457 x = 48 claim = p ≠ 0.15

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A: given data  normal distribution  μ= 100σ= 15 p(70<x<125) = ?

Q: For an independent t test with equal variances, n1= 23, n2= 27, S1= 8, S2 = 9 Find the correct…

A: Given that, for an independent t test with equal variances,  n1= 23, n2= 27, S1= 8, S2 = 9

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A:

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A: given data, n=10 outcomes we have to find out the mean , midrange , median and mode for the given…

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A: Givenp=0.24n=67x~Binomial(n=67 , p=0.24)P(X=x)=(nx)(p)x(1-p)n-x   ; x=0,1,...,n

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Q: A random variable X follows a Standard Cauchy Distribution if its pdf is given by 1 fx(x) ,x ER…

A: Solution

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A:

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A:

Q: xpress the confidence interval (65.2%,83.2%) in the form of ˆp ± ME. _____% ± _____ %

A: The confidence interval is (65.2%, 83.2%).

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A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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A: It is given that  Margin of error, E = 2.5% = 0.025 Confidence level = 90%

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Q: Suppose that we have a sample space with five equally likely experimental outcomes: {E1,E2, E3, E4,…

A: Solution-: Given: A sample space with five equally likely experimental outcomes: {E1,E2,E3,E4,E5}…

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A: We have given the following joint p.d.f of two random variable x and y f(x,y) = 1/8[ x(x-y) ], 0&lt;…

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A: Let X denote the height measurements of ten-year-old children and it follows normal distribution…

Q: The average price of a home in a town was $175,000 in 2013, but home prices are rising by 5% per…

A: Given data The average price of a home in a town was $175,000 in 2013, but home prices are rising by…

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Q: How did you get 0.15088 from -0.3877?

A: From the given information, the mean is 313.

Q: he test statistic of z = 2.26 is obtained when testing the claim that p > 0.24. This is a…

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A: Given that  X ~ Normal (Mean = M = 14.6 , Standard deviation = SD = 4) Find P(X &lt; 12)

Q: the following random sample was selected from a normal distribution: 11, 16, 3, 13, 18, 18, 16, 19,…

A: Given data is11, 16, 3, 13, 18, 18, 16, 19, 17, 11sample size(n)=10

Q: You are conducting a test of independence for the claim that there is an association between the row…

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A: given data normal distributionμ = 50σ = 12for z = -0.25x = ?

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A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you.…

Q: Fortune magazine publishers an annual list of the 500 largest companies in the United States. The…

A: P(event A)=no. of outcomes favorable to A/ total n. of outcomes P(A or B or C) = P(A)+P(B)+P(C) when…

Q: xpress the confidence interval (75.8%,83%) in the form of ˆp ± ME _____% ± ______ %

A: The given confidence interval is,(75.8%,83%)  The lower  limit is, 75.8% The upper limit is, 83%

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Q: Consider the following competing hypotheses and accompanying sample data drawn independently from…

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A: Solution