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DAY 1. Multiply the three matrices together in order (A*B*C) to get a fourth matrix 'D'. What is the fourth matrix?
DAY 2. Multiply the fourth matrix by the scalar 6 to get a fifth matrix E.
DAY 3. Add the fifth matrix to a matrix whose elements are all "2"'s to get a sixth matrix F. What is the sixth matrix?
DAY 4. You are told the password for your next assignment is the element F1,3. What is your password?
a residential heat pump with a coefficient of performance of 2.2 delivers energy to the dwelling at a rate of 23 kw.
In each of the following cases. find the mean , variance and standard of the sampling distribution of sample proportion p.
What are the null and alternative hypotheses? In what way do the two estimates of the defect rate in question 3g differ?
the weights of ripe watermelons grown at mr. smiths farm are normally distributed with a standard deviation of 2.7 lb.
what differentiates ratio data from data that are only
Suppose 5.9% of certain population use public transportation to get to work. You randomly select 380 workers and ask them if they use public transportation to get to work.
A scatterplot shows a set of data points that are clustered close to a line that slopes down to the right. Which of the following values would be closest to the correlation for these data?
An investigator analyzed the leading digits of the amounts from 200 checks issued by three suspect companies. Calculate the χ2 test statistic. Calculate the χ2critical value
Suppose we have the following information from a simple regression: What is the coefficient of determination? What is the correlation coefficient?
Using α = .05 test for significance differences among the population mean wasted time for theses three urban areas. What is the p-value? What is your conclusion?
in a study on infants one of the characteristics measured was head circumference. the mean head circumference of 8
Assume that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the allotted time?
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