The mean of a set of data is the sum of all values in a data set divided by the number .of values in the set I need answer within 3 minutes with my best wishes ton .A True .B False

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A: Givensample size(n)=373Mean(x)=36.85standard deviation(σ)=19.05Confidence level = 80%

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Q: The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of…

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Q: Suppose you want to know the variance of the weights of the only 6 Snakes in a particular 200. You…

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Q: te R1.23 and R12.3. X1: 2 3 4 5 6

A: x1 x2 x3   2 6 10   3 5 6   4 4 11   5 3 16   6 2 7 total 20 20 50…

Q: Situation I: one afternoon. shown below. 1. Find the mean. 2. Find the median. 3. Find the mode. 1 8…

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Q: 1. A random variable that can be used to find a 95% confidence interval for μ₁-₂ is

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Q: Two variables have a linear correlation of 0.97. Which of the following is true? a. The variables…

A: Given data  Linear Correlation coefficient r = 0.97 We have to identify true properties.

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A: It is given that the simplified answer is -6.831.

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Q: A salesperson records the following daily expenditures (in Php) during a 10-day trip. 185.34 234.55…

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Q: Determine whether the random variable x is discrete or continuous. Explain. Let x represent the…

A: As we know discrete variables are countable  Continuous variables are measurable.

Q: Q4. Please only answer b and c

A: Each hypothesis test has two regions, they are critical and acceptance region. Critical region is…

Q: Calculate the z score for sales per store x = 45 sales. Use this sample data. 74, 49, 4, 33, 82, 76

A: The provided samples are 74,49,4,33,82,76Σx=318Σx2=21482n=6The mean is µ=Σxn=3186=53standard…

Q: Suppose a jar contains 6 red marbles and 38 blue marbles. If you reach in the jar and pull out 2…

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A: The sample size n is 15.

Q: What is the probability of randomly selecting a Old product, given you selected a Student? New…

A: The provided information is    New product Old product Totals Student 23 17 40 Professor 16…

Q: Nationally, 80 percent of adults own an automobile. You are interested in whether the same…

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A: 11) From the critical value calculator, Hence, Option C is the answer.

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Q: We want to conduct a hypothesis test of the claim that the population mean reading speed of second…

A: Given information Hypothesized mean µ = 30.3 wpm Sample size (n) = 31 Mean x̅ = 29.6 wpm Standard…

Q: Calculate the correlation coefficient, r, for the data below. x-13 -11 -4 -7 -9 -10 -8 -6 -5 -12…

A: X Y X.Y X2 Y2 -13 -16 208 169 256 -11 -14 154 121 196 -4 3 -12 16 9 -7 -5 35 49 25 -9…

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A: Given that the mean days to pass kidney stone is 12 days and the standard deviation is 5 days

Q: The average height for female golden retrievers is 21.96 inches with a standard deviation of 1.77…

A: Given,mean(μ)=21.96standard deviation(σ)=1.77

Q: Consider using a z test to test Ho: P = 0.7. Determine the P-value in each of the following…

A: Given :  p = 0.7

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Q: 2. It is claimed that the average age of working students in a certain university is 35 years. A…

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Q: Determine if there is significant difference among the costs of daily allowance received by the…

A: Anova is used to measure the mean significance between the groups of observations. It compare three…