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Suppose X IQ with X 100 and SX 15, while Y SAT verbal score with Y 500 and SY 100. Use the standardscore formula for the regression of Y on X to predict Y (the raw score) for the following values of X, assuming r .50. (You can do these in your head, but in writing your answer show both the z score and the rawscore values.)
(a) 100,
(b) 115,
(c) 130,
(d) 85,
(e) 70,
(f) 145,
(g) 55.
members of the senate took a battery of tests to assess their abilities. in the talking as if you are saying something
Sixty-five of the later works were sampled, averaging 1.746 with a standard deviation of 0.1064. Do you think that there is a significant difference.
Consider a machine in use that can be sold for $3,500 or that could be used for another 3 years with no salvage value at the end.
A contractor developed a multiplicative time series model to predict the number of contracts in future quarters, using quarterly data on number of contracts during the 3-year period from 1996 to 1998.
If a random sample of 100 shoppers is taken, what is the probability that at least 30 of them will be found to be holders of the card?
Math and Verbal SAT scores were examined for students in three types of introductory statistics course: one for social science majors, one for natural science
Find the probability that the number that say they would feel secure is (a) exactly five, (b) more than five, and (c) at most five
To have 95% confidence that the sample percentage will be within 3 percentage points of the actual population percentage, how large a simple random sample is required?
Compute the correlation among the variables. Describe perfect correlation also negative correlation. Utilize the following data to answer questions related.
Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- The Ebola virus is deadly, but it will become a major threat to humanity if and only if it becomes airborne and a vaccine is n..
A sample of 4 axles is inspected each hour for process control purposes, and records are kept of the sample mean diameter. What will be the mean and the standard deviation of the numbers record.
Determine whether or not there exists a statistically significant difference between the salaries of female and male human resource managers
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