A population of grades for a statistics class of six students is given below:   71,63,68,80,85,82   Find the variance for this population. Population Variance =

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A: We Assume that the population variances are not the same.

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A: We have given that  95% confidence interval is (17, 54)Population mean value (µ) = 14

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Q: I have a bag with 143 M&Ms. I counted 25 RED M&Ms in the bag. The claimed p for RED M&Ms is 13%.…

A: Solution-: Given: n=143,p=0.13 We want to find P(selecting the same number of RED M&Ms as I…

Q: What is the average of  2.0, 32.0, 44.0, 14.5, 7.5 ?

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A: The mean is 34,000 and the standard deviation is 2400.

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Q: om variable with the following distribution and let Y = 2X2 - 3. a) what is the distribution of Y?…

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A: GivenFor rural families n1=57x1=67821σ1=748For urban familiesn2=42x2=67633σ2=616α=0.05Critical value…

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A: Given data:    40 =Total reviewees 30=  passed MATH, 36 =  passed ESAS and 2  = failed in both…

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Q: Find the area under the standard normal curve to the right of z = 1.69.

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A: Given data is 0.66,0.21,0.26,0.86,0.94,1.17,0.38,0.31,0.85,0.37,0.46,0.24standard…

Q: The p-value is not 0.0149.

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Q: X is the Binomial Random Variable which counts the number of students who passed an exam. If the…

A: Here, n=46 and p=0.89.

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A: Given  A data table  Median =5.2 No of samples=19 We need to determine the P value. Please find the…

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Q: There are two copies each of 4 different books. In how many ways can they be arranged on a shelf?

A: GivenTwo copies each of 4 different booksTotal no.of books=2×4=8

Q: If the sample size is 100 and the population standard deviation is 20, then the standard deviation…

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A: Given,sample size(n)=100sample mean(x¯)=17.3population standard deviation(σ)=4α=0.1

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Q: In N(2, 4) the mean is 4 0 2 1 , the standard deviation is 2 0 4 1 Two standard deviations left of…

A: We have given that  X ~ N (µ, σ )= N(2, 4) Mean(µ) = 2 Standard deviations (σ) = 4

Q: Suppose that in a random selection of 100 colored candies, 24% of them are blue. The candy company…

A: Introduction: Denote p as the true proportion of blue candies.

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Q: The following are six observations collected from treatment 1, ten observations collected from…

A: Given data: Treatment 1 Treatment 2 Treatment 3 3 9 6 2 6 3 5 5 5 1 6 5 3 8 5 1 5 4…

Q: 1. A researcher used a developed problem solving test to randomly select 50 Grade 6 pupils. In this…

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