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Which of the variables below do you think will be roughly normally distributed? Please select all that apply.
a) Weights of 10 year old boys
b) Incomes of 40 year of adults.
c) The numbers that show up when you roll a die.
d) The amount of coffee which a filling machine puts into a 1 pound can.
What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes?
A random sample of 100 observations is obtained from a normally distributed population with a standard deviation of 10. What is a 95% confidence interval for the mean of the population if the sample mean is 40?
To determine her blood pressure, Carolyn divides her day into three parts; morning, afternoon, and evening. She then measures her blood pressure at 4 randomly selected times during each part of the day. What type of sampling is used?
Find the probability between the given values for normal distribution.
Calculate the Pearson correlation for these data also determine whether there is a significant correlation among attitudes for husbands also wives.
Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho= 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
If profit earned in the manufacture and sale of X units of a product is P dollars where: P = 10X - 0.001X2
Describe the Linear programming problem with constraints. Which among the following is not acceptable as a constraint in a linear programming problem?
If 200 passengers take this flight, find the binomial and Poisson probability of no platinum flyers (round your answer to 4 decimal places).
Estimating a linear regression equation to predict the future values of the dependent variable Y.
Can we conclude that car size is dependent on marital status? YES or NO (circle one)
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