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The head of the math department is interested in the correlation between scores on a final math exam and the math SAT score. She took a random sample of 15 students and recorded each students' final exam and math SAT scores. Since SAT scores are designed to be normally distributed, the Spearman rank correlation may be an especially effective tool for this comparison. Use the Spearman rank correlation test to determine the correlation coefficient.
A Firm has two photocopying machines. The old one is available for use 80% of the time and the new one is available for use 91% of the time. The machine availabilities are independent of each other. a) Construct a tree diagram to display the infor..
Ophelia O'Brien, VP of Consumer Credit of American First Banks (AFB), monitors the default rate on personal loans at the AFB member banks.
a pew research center poll used telephone interviews to ask american adults if parents are pushing their kids too hard
Draw the tree diagram for experiment and complete the table below that represents the probabilities for each of the values that the random variable X will asume.
The uniform space is called complete if every Cauchy net converges to some element of S (for the topology of U ). If a metric space (S, d) is complete, prove it is also complete as a uniform space.
A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not?
suppose the total sample space area in the rectangle denoted as s is all the students on msu campus. let a denote all
A manufacturer of coil springs is interested in implementing a quality control system to monitor his production process. Construct a time series plot of the data
Tavern has budget of $2,000 for beer for Super Bowl Sunday. Betty desires to find out number of gallons of each brand of beer to order so as to maximize profit. Create a linear programming model for this problem.
In a poll of 1049 adults, it was found that 21% smoked cigarettes in teh past week. Use a 0.05 significance level to test the claim that less than 25% of adults have smoked within the past week.
Provide two examples for each source of measurement error and include how each example might likely influence research results.
let x represent the absolute value of the difference between the number of heads and the number of tails when a coin is
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