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Run a regression analysis on the following bivariate set of data with yx y95.9 56.6
as the response variable.
85.1 19
75.7 81.5
92.7 68.2
61 6.2
58.3 32.8
61.5 45.3
69.9 -9.3
80.3 58.2
69.6 53.8
49 -43.1
59.4 -41.6
Find the correlation coefficient and report it accurate to three decimal places.
r = _____
What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place. (If the answer is 0.84471, then it would be 84.5%...you would enter 84.5 without the percent symbol.)
r² = _____%
Calculate the effect size index for the students' Doritos data, and interpret it using the conventions that researchers use.
What kind of test would be appropriate? State the null and alternative hypotheses - How many degrees of freedom are there?
Test the proportions of yellow fire trucks have a significantly lower accident rate.
You will win a prize if you toss a coin a given number of times and get between 40% and 60% heads. Would you rather toss the coin 10 times or 100 times, or is there any difference?
Construct a scatter diagram where the variables are the two kinds of reputation scores. Do schools given higher scores by the academicians seem to also receive higher scores from the lawyers/judges?
1. Given the information in Exercise 15.13, deter- mine and interpret the coefficients of correlation and determination for January-May burned acreage in Florida versus January-May rainfall in the state.
Are the events the stream has a high BOD and the stream has high acidity independent?
if the average weight losses are to be compared among 3 different diets which of the following methods of analysis
What is the equivalent annual cost of one machine if the required rate of return is 12 percent?
in a manufacturing process a random sample of 36 bolts manufactured has a mean length of 1.71 inches with a standard
question acid rain has caused many lakes to become more acidic. a lake is considered nonacidic if the ph level is
(a) Find a 95% confidence interval for the proportion of people who disagree with the statement.
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