A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He collects data (measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. A portion of the data is shown in the accompanying table. (You may find it useful to reference the appropriate table: z table or table) Brand A Brand B 17 24 14 Click here for the Excel Daly File Assume that is the mean longevity for Brand A and u₂ is the mean longevity for Brand B. a. Select the competing hypotheses to test whether the average length of life differs between the two brands. 16 18 T 19 He: H1-4201 HA: 41-420 Hel H1-42= 0; HA: #1 - 12 < 0 Ho: M1-12 01 MA: M1 - 120 N b-1. Calculate the value of the test statistic. Assume that o24.9 and op 5.3. (Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.)
A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He collects data (measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. A portion of the data is shown in the accompanying table. (You may find it useful to reference the appropriate table: z table or table) Brand A Brand B 17 24 14 Click here for the Excel Daly File Assume that is the mean longevity for Brand A and u₂ is the mean longevity for Brand B. a. Select the competing hypotheses to test whether the average length of life differs between the two brands. 16 18 T 19 He: H1-4201 HA: 41-420 Hel H1-42= 0; HA: #1 - 12 < 0 Ho: M1-12 01 MA: M1 - 120 N b-1. Calculate the value of the test statistic. Assume that o24.9 and op 5.3. (Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 2CYU
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