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You are given the following data.
Number of Absences
Final Grade
0
93
1
92
2
84
3
77
4
67
5
59
i) Find the correlation coefficient for the data. ii) Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
support the consumer group's claim that fewer than 75% of the claims were settled within 5 weeks? Test using the traditional approach with α = 0.05. Determine which test statistic applies, and calculate it
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for any normal distribution what z-score separates the highest 80 of the scores from the rest of the distribution?
Firm D has net income of $27,900, sales of $930,000, and average total assets of $465,000. Calculate the firm's margin, turnover, and ROI.
How long they stay on each visit. How would you suggest taking this sample? What type of sampling have you described?
A multiple choice test consists of 25 questions with possible answers of a, b, c, d, and e. Estimate the probability that with random guessing, the number of correct answers is between 3 and 10 inclusive.
question a researcher hypothesizes that individuals who listen to classical music will score differently from the
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An independent financial advisor claims an average rate of return, μ, on a particular investment is at least 7%. In testing her claim, the correct pair of hypotheses is:
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