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Consider a class containing 30 students.
(a) You wish to select a simple random sample of 10 students. How many different samples are possible? You may assume that the order of selection is irrelevant.
(b) Of the 30 students in the class, 8 of them have green eyes. If you select a simple random sample of 10students, what is the probability that exactly 3 of them will have green eyes? Explain your reasoning.
Perform a correlational analysis on the following variables: Student Extroversion, Lecture Extroversion, Student Agreeableness, Lecture Agreeableness.
Car X used k gallons of gas while traveling p miles, and car Y used s gallons of gas while traveling r miles. What was the ratio of the number of miles per gallon for car X to the number of miles per gallon for the car Y?
Calculate the upper bound for a 90% one-sided confidence interval estimate for the rate of noncompliance. Based on (a), what should the auditor conclude?
1. an industrial engineer who is studying the clerical staffing of a physicians group practice must decide whether
During the last year sales averaged $22,000 per month. Does this indicate that monthly sales have changed (in a statistically significant sense)? Use 0.05. Assume monthly sales are normally distributed.
Why is expectation important? Explain what the expected value of an experiment or a business represents. What does it mean to have an expected value of 0? Provide an example of expectation and the use of the formula for expected value.
one important use of regression line is to do which of the following?a. to determine the strength of a linear
Jen's dog broke off her six-inch-long pencil at a random point on the pencil. Find the density function and the expected value of the ratio of the lengths of the shorter piece and the longer piece of the pencil.
What is one of the two differences between the way ZST or ZLT are calculated?
h-p is said to be the leading seller of pc's in the U.S WITH 27% share of the pc market. if a researcher selects 130 recent pc purchases
Calculate the test statistic, and interpret the result, calculate the p-value, and interpret the result and determine the rejection and non-rejection regions.
A sample of charge accounts at a local drug store revealed the following frequency distribution of unpaid balances. Determine the standard deviation. Compute the coefficient of variation.
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