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For a population with a mean of 60 and a standard deviation of 24, find the z-score corresponding to each of the following samples.
a. M= 63 for a sample of n= 16 scores z=.5b. M=63 for a sample of n= 36 scores z=.75c. M= 63 for a sample of n= 64 scores z=1
What is Om for each equation?
What is the probability of this project being completed earlier than 19 days?
Let X and Y have a bivariate normal distribution with parameters u1 = 20, u2 = 40, sigma1^2 = 9, sigma2^2 = 4, and p = 0.6. Find the shortest interval for which 0.90 is the conditional probability that Y is in the interval, given that X = 22.
If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor?
The heights of 18 year old men are approximately normally distributed with mean 68 inches and a SD of 3 inches.
Compute cumulative probabilities for these numbers in second column. Then create a histogram illustrating data distribution. Using generated Normal probability table, determine probability of Pr(X
John Rengel is the Quality Assurance Supervisor for Vino Supremo Vinyards. He knows that 10 percent of each box of corks is undersized.
Find the probability distribution for X defined as the number of defective items drawn (Hint: You have to find P(X=0), P(X=1) and P(X=2). You may have to use both multiplicative and additive rules to find P (X=1)).
During a 52 week period, a company paid overtime wages for 18 weeks and hired temporary help for 9 weeks. During 5 weeks, the company paid overtime and hired temporary help
Construct a 99% confidence interval estimate for the population mean amount of paint included in a 1-gallon can.
Suppose that sales of lemonade and sales of brownies are independent, determine standard deviation in his revenue.
Think about a real life situation that follows a linear equation, with the independent variable being years. What would the slope tell you about future years?
Anthony is measuring his participants' emotional states in two different ways (self-report and galvanic skin response) in order to gain a greater confidence that he is actually measuring the emotional that he thinks he is.
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