The following data relate to the age of a group of Govt. employees. Calculate the arithmetic mean and standard deviation: Age 50-55 45-50 40-45 35-40 30-35 25-30 20-25 No. of Employees 25 30 40 45 80 110 170

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A: Introduction: It is required to test whether the different firing temperatures affect the density.

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Q: The critical value for the 95% CI lower bound for o given that n = 10 and s? = 25 is:

A: It is given that Sample size n = 10 Sample variance = 25 Level of confidence = 0.95

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A: Given information: μ=1060 points, σ=200 pointsMaximum=400 pointsMinimum=1600 points

Q: 4) For both sets of instructions shown below, the initial value of r7 = 0x05 and the initial value o...

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Q: Calculate the coefficient of variation for products sold per store using this sample data 0, 77, 38,...

A: Coefficient of variation CV= (standard deviation /mean)

Q: Calculate Standard deviation

A: here given no.of employees and no.of firm data here use grouped standard deviation formula

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A: Standard deviation of Binomial distribution is given by σ=√np(1-p)

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A: Givensample size(n)=1200x=586confidence interval is 95%

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Q: QUESTION 22 Calculate the variance products sold per store using this sample data 0, 77, 38, -5, 44,...

A: Answer  Variance = 900.33

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A: From the provided information,

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Q: a You are given below a certain statistical distribution: Value Frequency Value Frequency Less than ...

A: Solution is given: If you need some more information about your question please ask me.

Q: jects obtained by one of the students was wrongly taken as 7 instead of 9. Find the correct coeffici...

A: Here use formula of rank correlation coefficient 

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Q: Calculate Standard deviation of the following data : No. of Employees : 10-19 20-29 30-39 40-49 50-5...

A: The answer for this question is given below in the image:

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Q: a 0.23 17. When X = 120 and n = 406, what is the value of ĝ? %3D %3D a., 0.30 b. 0.70 C. 120 d. 406 ...

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Q: Calculate the standard deviation sales per store using this population data 91, 53, 71, 4, 30, 16

A: We have given that the population data: 91, 53, 71, 4, 30, 16.

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A: The mean is 70 and the standard deviation is 1.6.

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Q: (MT-IB 1992-406D long) Let e, €2, .... E, be independent random variables each with the N(0, 1) dist...

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Q: Suppose a 95% confidence interval for μ runs from 38 to 46. If we had tested H0: μ = 42 against H1:...

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A: We have given that,  Sample mean weight (x̄) = 48 , population standard deviation (σ) = 6.5 and samp...

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A: Solution is given:

Q: Classify the following scores in class-intervals 0–9, 10–19,.., 40--49 and calculate the variance of...

A: Given data 24,12,37,49,30,6,28,10,13,18,12,19,2,3,4,25,22,16,29,0,21,23,31,21,34,20,27,23,35sample s...