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The number of Employees of a major high tech company for 1999-2004 is given below:
Year Employees (in 000)
1 45, 6002 42,2003 41,1004 39, 3005 34,3006 30,300
Determine the least square trend equation.
Estimate the number of employees in 2008.
By how much the number of employees decreases (or increases) per year on the average?
The athletic director claims that the atendance is the same as last year. What is the test value needed to evaluate the claim?
Compute standard error of mean? Compute the margin of error, with 95% confidence.
Suppose 10 balls, numbered 1-10, are to be distributed randomly into 10 boxes. a) What is the probability all 10 balls are placed into one box? b) What is the probability that no boxes are empty?
Informed Consent would be used in qualitative and quantitative research for data collection, and how each may impact it from a qualitative and quantitative standpoint
Write the linear regression equation to forecast father's education from mother's education?
A arbitrary sample of 8 students is selected. Illucidate the probability that among the students in the sample at least 7 are female.
Find out and interpret coefficients of correlation and determination for U. S. prices versus Canadian prices.
A description of how you believe statistics can enrich and represent the results of a study, and an explanation of how statistics can be used to misrepresent the results of a study.
The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of eight syringes taken from the batch. Assume the batch contains 1% defective syringes.
Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?
Test the overall significance of the regression model at α = .05 level. Please use the six-step hypothesis-testing framework we employed in class, and write out the last three steps in this table:
Find out the Expected value of the perfect information for the given problem. Given the subsiquent cost tree, illustrate what is the expected outcome.
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