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Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line.? (The pair of variables have a significant? correlation.) Then use the regression equation to predict the value of y for each of the given? x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below.
Hours spent studying, x Test score, y
0 41
1 43
2 51
3 50
5 62
5 73
a. x=4hrs
b. x=3.5hrs
c. x=13hrs
d. x=4.5hrs
A stream has been monitored weekly for a number of years, and the total dissolved solids in the stream averages 40 parts per million and is constant.
You need to hand in individual work. You may talk with each other about the problems. However, everything in the assignment must be your own work.
q1. a researcher wants to determine the sample size necessary to adequately conduct a study to estimate the population
What is the probability that a loan will have a z-score of less than -1.5? Answer to at least four decimal places.
a. Find the P-value to test the claim that the average time until first leakage for the huntingboot is at least 12 hours. b. Does this sample support A.C. Bone's claim at α = .05?
It was found that the correlation is about .80 and the regression equation is handspan = 3 + 0.35 height What is the predicted handspan for someone 5 feet tall?
To obtain an estimate, the attendant decides to ask the next 200 gasoline customers how many vehicles their households own.
discuss the advantages of constructing a relative frequency distribution as opposed to a frequency
(a) Make a scatterplot similar to Figure 4.1 for the spam botnet data. (b) Mark the location of the botnet Bobax on your plot.
given the returns and probabilities for the three possible states listed here calculate the covariance between the
a sample of alzheimers patients is tested to assess the amount of time in stage iv sleep. the number of minutes spent
Do boys who feel that they are "under weight" actually weigh less than boys who feel that they are "about right" in weight?
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