Blue Box is testing a new “half price on Tuesday” policy on DVD rentals at a sample of 10 locations. Location New Price Old Price 1 15 11 2 11 7 3 13 10 4 13 14 5 10 9 6 12 15 7 12 13 8 11 7 9 13 12 10 12 9 Click here for the Excel Data File (a-1) Choose the right option for H0:μd ≤ 0; H1:μd> 0. Use α = .05. Reject if tcalc < 1.833 Reject if tcalc > 1.833 (a-2) Calculate the value of tcalc. (Round your answer to 2 decimal places.) tcalc (b-1) Is the decision close? (Round your answer to 4 decimal places.) The decision is (Click to select) not close close The p-value is . (b-2) The new price is better than the old. True False (b-3) The difference is significant. False True
Blue Box is testing a new “half price on Tuesday” policy on DVD rentals at a sample of 10 locations. Location New Price Old Price 1 15 11 2 11 7 3 13 10 4 13 14 5 10 9 6 12 15 7 12 13 8 11 7 9 13 12 10 12 9 Click here for the Excel Data File (a-1) Choose the right option for H0:μd ≤ 0; H1:μd> 0. Use α = .05. Reject if tcalc < 1.833 Reject if tcalc > 1.833 (a-2) Calculate the value of tcalc. (Round your answer to 2 decimal places.) tcalc (b-1) Is the decision close? (Round your answer to 4 decimal places.) The decision is (Click to select) not close close The p-value is . (b-2) The new price is better than the old. True False (b-3) The difference is significant. False True
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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Question
Blue Box is testing a new “half price on Tuesday” policy on DVD rentals at a sample of 10 locations.
Location | New Price | Old Price | ||||
1 | 15 | 11 | ||||
2 | 11 | 7 | ||||
3 | 13 | 10 | ||||
4 | 13 | 14 | ||||
5 | 10 | 9 | ||||
6 | 12 | 15 | ||||
7 | 12 | 13 | ||||
8 | 11 | 7 | ||||
9 | 13 | 12 | ||||
10 | 12 | 9 | ||||
Click here for the Excel Data File
(a-1) Choose the right option for H0:μd ≤ 0; H1:μd> 0. Use α = .05.
-
Reject if tcalc < 1.833
-
Reject if tcalc > 1.833
(a-2) Calculate the value of tcalc. (Round your answer to 2 decimal places.)
tcalc
(b-1) Is the decision close? (Round your answer to 4 decimal places.)
The decision is (Click to select) not close close
The p-value is .
(b-2) The new price is better than the old.
-
True
-
False
(b-3) The difference is significant.
-
False
-
True
(c) Are you convinced?
-
Yes
-
No
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