A chain of hardware stores is trying to sell more paint by mailing pamphlets describing the paint. In 15 communities containing one of these hardware stores, the paint sales (in dollars) were recorded for the months before and after the ads were sent out. The paired results for each store follow. Sales after 612 151 795 285 718 467 285 641 506 119 269 361 97 214 283 Sales before 462 212 647 259 688 436 229 479 374 119 115 369 94 295 435 (c) Find the sample test statistic. (Use 2 decimal places for the value of x in your calculations. Use 2 decimal places for your answer.)
A chain of hardware stores is trying to sell more paint by mailing pamphlets describing the paint. In 15 communities containing one of these hardware stores, the paint sales (in dollars) were recorded for the months before and after the ads were sent out. The paired results for each store follow. Sales after 612 151 795 285 718 467 285 641 506 119 269 361 97 214 283 Sales before 462 212 647 259 688 436 229 479 374 119 115 369 94 295 435 (c) Find the sample test statistic. (Use 2 decimal places for the value of x in your calculations. Use 2 decimal places for your answer.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 13CYU
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A chain of hardware stores is trying to sell more paint by mailing pamphlets describing the paint. In 15 communities containing one of these hardware stores, the paint sales (in dollars) were recorded for the months before and after the ads were sent out. The paired results for each store follow.
Sales after | 612 | 151 | 795 | 285 | 718 | 467 | 285 | 641 | 506 | 119 | 269 | 361 | 97 | 214 | 283 |
Sales before | 462 | 212 | 647 | 259 | 688 | 436 | 229 | 479 | 374 | 119 | 115 | 369 | 94 | 295 | 435 |
(c) Find the sample test statistic. (Use 2 decimal places for the value of x in your calculations. Use 2 decimal places for your answer.)
(d) For the sign test, rank-sum test, and Spearman
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