Q2. A random sample of 8 recent BBA graduates in a company was selected. The following table lists their CGPA and starting salary in thousand taka. CGPA Starting salary 3.5 3.25 2.25 30 45 2.00 2.75 41 2.5 3.90 60 3.00 52 35 (a) Calculate the coefficient of correlation (r) and interpret the result. (b) What is the point estimate of the population coefficient of correlation (p)? 25 22 (c) Construct the 95% confidence interval for coefficient of correlation and interpret the result.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Bus- 173 (Applied Statistics)

Q2. A random sample of 8 recent BBA graduates in a company was selected. The following table lists
their CGPA and starting salary in thousand taka.
3.5 2.5
52
CGPA
Starting salary
(a) Calculate the coefficient of correlation (r) and interpret the result.
(b) What is the point estimate of the population coefficient of correlation (p)?
(c) Construct the 95% confidence interval for coefficient of correlation and interpret the result.
(d) Write down the margin of error.
3.25 2.25 3.90
25
2.75
35
3.00
2.00
22
30
45
60
41
Transcribed Image Text:Q2. A random sample of 8 recent BBA graduates in a company was selected. The following table lists their CGPA and starting salary in thousand taka. 3.5 2.5 52 CGPA Starting salary (a) Calculate the coefficient of correlation (r) and interpret the result. (b) What is the point estimate of the population coefficient of correlation (p)? (c) Construct the 95% confidence interval for coefficient of correlation and interpret the result. (d) Write down the margin of error. 3.25 2.25 3.90 25 2.75 35 3.00 2.00 22 30 45 60 41
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