Q.#5 Apopulation consists of values 56 66 60 65 62 56 57 73 70 59 57 73 57 63 57 63 70 65 65 70 59 71 71 67 66 62 75 57 75 66 59 70 55 70 71 60 64 66 61 75 List all possible systematic samples of sizes 4, 5 and 6 that can be drawn from this population and show that the sample mean is an unbiased estimator of population mean. Compute variance of 57 74 systematic sampling estimator in each case.

Q: A random sample of 12 employees in a large manufacturing plant found the following figures for…

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Q: Independent t-test. Directions: Analyze if there is significant difference between the two sets of…

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Q: 1) A shopkeeper keeps a record of how many sales they make in a day. They record the number of sales…

A: Given information: Sales Frequency 0 6 1 8 2 12 3 2 4 6 5 2

Q: Dependent t-test Directions: Analyze if there is significant difference between the pretest and…

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Q: Age distribution of 60 computer engineers and 45 mechanical engineers in an industry are given…

A: Given: Age distribution of 60 computer engineers and 45 mechanical engineers in an industry.

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A: We have given that  Total number of observation=n=15 Number of treatment=k=3

Q: 5. Given the data set below. Find the mean, median, mode, range, sample variance, and sample…

A: Formula : sample variance :

Q: 5. The following is a sample of observations assumed to have drawn from normal population. 74 85 72…

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Q: 16 19 22 24 25 27 33 40 63 70 17 20 23 24 25 29 35 41 65 71 17 20 23 25 26 30 36 42 65 73 18 21 23…

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Q: 1. A magazine claims that the mean amount spent by a customer at Burger Stop is greater than the…

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Q: Explain briefly the procedure you may adopt to summarize data set obtained from field study? 2. Use…

A: For summerize data :  There are three main steps :  1st : ( Center )  2nd : ( variability )  3rd : (…

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Q: The rainfall and snowtall levels in inches at a certain city are collected per year and found to be…

A: The data shows the rainfall and snowfall levels inches at a certain city.

Q: Using the population formula, calculate the mean, variance, and standard deviation for the following…

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Q: Groups Count Sum Average Variance Sum Rank Туре 1 1650 330 17000 47 Туре 2 1250 250 10000 34.5 Туре…

A: Given : Total Groups  , k  =3 Degrees of freedom for Between groups, B   = k-1 = 3-1 = 2

Q: Suppose that we have disjoint normal populations A and B and we want to find the standard error…

A: Denote μ1, μ2 as the true averages of populations A and B, respectively.

Q: 2. Using the following data, perform a one-way analysis of variance using a = 0.05. Group 1 Group 2…

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Q: Frequency Table-:   Class Interval Frequency 20-25 5 25-30 5 30-35 7 35-40 10 40-45 5…

A: The given frequency distribution table is Classes Frequencies 20-25 5 25-30 5 30-35 7…

Q: Test the claim that the samples come from populations with the same mean.  Assume that the…

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Q: 1. Consider a random sample of size 100 from a normal population with a mean of 2 and variance of…

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Q: The following table gives the grouped frequency distribution of the crime rates in 25 different…

A: Mean is a measure of central tendency, mean is defined as  x¯=1n∑i=1nxi fi,where, n is the total…

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A: We have to find mean and the standard deviation of the distribution of means for given situations.So…

Q: Compute the sample variance and standard deviation of each data 350 361 362 364 365 366 371 377 377…

A: Given data: 350, 361, 362, 364, 365, 366, 371, 377, 377, 377, 379, 380, 392, 350, 354, 359, 363,…

Q: Following is the data related to the daily production of the two factories of same product located…

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Q: Name Course and Year Exercise 5.1 Determine the sample variance and standard deviation for the…

A: Class Frequency (f) Mid value (x) f⋅ x f⋅x2=(f⋅ x)×(x) 10-14 5 12 60 720 15-19 20 17 340 5780…

Q: a. Mean b. Median c. Mode d. Midrange e. Range f. Variance g. Standard deviation

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A: The coefficient of variation is defined as C.V = (SD/mean) × 100