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Obtain the linear correlation coefficient for the data. Round your answer to three decimal places. The data below show the temperature (x) and the amount a plant grew (y), in millimeters, for each of nine randomly selected days. Calculate the linear correlation coefficient r. Can you conclude from the value of r alone that the variables x and y are unrelated? x|62 76 50 51 71 46 51 44 79, y|36 39 50 13 33 33 17 6 16
1. laboratory experiment shows that the life of the average butterfly is normally distributed with a mean of 18.8 days
Summarize the NSC concentrations graphically and numerically for each type of forest. How do dry forests compare to moist forests in terms of NSC concentrations?
A random sample results in 1 = 20 with n1 = 100. The population standard deviation is σ1 = 6. Another sample was selected independently resulting in 2 = 22 with n2 = 100. The population standard deviation is σ2 = 7. Test that the population means ..
Sample of 1500 voters was taken and the number who are voting yes is recorded. What is the probability that more than 50% of those 1500 vote yes?
Compute the standard error of the mean O(funny o with line) line over x, for sample sizes of 50, 100, 15o, and 200. What can you say about the size of the standard error of the mean as the sample size is increased?
How much production capacity should the manufacturer reserve for the last day?
consider a normal population with mu25 and sigma8.0.a. calculate the standard score for a value x of 23b. calculate the
Gerald takes the ACT mathematics test and scores 23. ACT math scores are Normally distributed with mean 22.4 and standard deviation 4.2. Find the standardized scores for both students.
the first internet bank wants to encourage its customers to do all their banking online. it offers higher interest to
according to chebychevs theorem what percentage of a distribution will be within k 3.2 standard deviations of the
The team wins 55% of their night games, and 85% of their day games. According to today's newspaper, they won yesterday. What is the probability the game was played at night?
suppose you work for a company that manufactures electronics. the development analysts estimate that 2 of their
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