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Find the probability for Normal distribution.
The weight of a product is normally distributed with a mean of four ounces and a variance of .25 "squared ounces." What is the probability that the randomly selected unit from a recently manufactured batch weighs no more than 3.50 ounces?
Additionally, student should use graphing function to graph data and calculate regression equation.
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)?
Compute mean and standard deviation for sample of N = 8 females and sample of N = 8 for males.
What IQ score should one have in order to be eligible for Mensa?
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
We are interested in comparing the proportions of males and females who think earning a large salary is very important to them. I surveyed 200 of each gender and recorded their answers to the question as yes or no.
The Type 1 error states the probability of being wrong whenever:
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.
Illustrate the regression model and predict it. The following table shows the yearly maintenance costs for several cars, as well as their age.
A company makes camshafts. The camshaft lengths need to be within a certain tolerance or they will not fit. They have produced x bar and s charts
Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?
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