Complete the following. Do not round any intermediate computations. Write your answers with two decimal places, roun (a) Find u- (the mean of the sampling distribution of the sample mean). x 11= X (b) Find o- (the standard deviation of the sampling distribution of the sample mean). - S X 5

Q: f your score on your next statistics test is converted to a z​ score, which of these z scores would…

A: The given z-scores are -2, -1, 0, 1, 2.

Q: One sample of scores has a mean of M = 45 and a sample size of n = 10 scores.  A second sample of…

A:

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given,mean(μ)=100standard deviation(σ)=15and z-score=0.7

Q: Suppose X - N (-9,4). Between what a values does 95.48% of the data lie? The range of a values is…

A:

Q: John calculated r -.44 for a set of n 10 pairs of values that represent the number of absences from…

A: Given that r = -0.44 midterm exam score ( y )   number of absences from class (x)

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A:

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given information: μ=100, σ=15 P-value for the x-value shown in graph = 1 - 0.55 = 0.45 Determine…

Q: Determine the Coefficient of Variation of a data set given the x̅= 2.54 and s = .74. Round to the…

A: GivenMean(x)=2.54standard deviation(s)=0.74

Q: the following situation, find the mean and standard deviation of the population. List all samples…

A: See the Excel output

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given information Mean = 100 Standard deviation = 15 P(X > x) = 0.65 P(X < x) = 1 – 0.65 =…

Q: The lives (in hours of continuous use) of 100 randomly selected flashlight batteries are: Interval…

A: According to the given data, first form the following table:IntervalFrequency(fi)Midpoint(xi…

Q: Suppose the timing device used in the men’s race failed to activate at the start of the race and…

A: The data for the time recorded for 17 men is given.

Q: Suppose X ∼N (-4,1. Between what xx values does 99.72% of the data lie?

A: Given: X ∼N (-4,1 ) To find: Between what xx values does 99.72% of the data lie?

Q: One of the z-score formulas will help on this question. Scores on the SAT test are normally…

A: Given X ~ N (500, 100) P(Z<x -μσ) = PZ<700-50010                     = P(Z<20)…

Q: The average THC content of marijuana sold on the street is 10.8%. Suppose the THC content is…

A: Given, mean= 10.8  Standard deviation= 1 So, variance= 12=1 So, X~N(mean,variance)= N(10.8,1)…

Q: 2. The mean score for a group of Statistics tests is 82 and the standard deviation is 4. The mean…

A: The random variable S is the score in the statistic The mean score for a group statistics test is 82…

Q: The following frequency table shows the number of fires per month in a city. Complete the table…

A: Given the frequency distribution and by using this we calculate mean and standard deviation.

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A:

Q: 6. Find the variance if X~N(0, ¿) and 95% of the data are between -7 and 7.

A:

Q: Suppose the mean of X is 6. What is the mean of Y if a = 0.66 and Y=aX?

A: From the provided information, Mean of X is 6 that is E (X) = 6 a = 0.66

Q: Find the are of the shaded region. The graph depicts the iq scores of adults and those normally…

A:

Q: One of the z-score formulas will help on this question. Scores on the SAT test are normally…

A: The Z-score is given by, Z=X-μσwhere μ=population mean            σ=population standard deviation