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BTM8106-8-2 Jackson Even-Numbered Chapter Exercises

Even-numbered exercises analyzing business research techniques.

Benjamin White
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BTM8106-8-21Part IBTM8106-8-2JACKSON EVEN-NUMBERED CHAPTER EXERCISES (PP. 220-221).2a.Thisisa one-tail test because themanufacturers of the toothpastewant toprovethattheirnew toothpaste prevents more cavitiesthan other brands of toothpaste(their sample vs. thegeneral population.2b.Ho: μcavities withtoothpaste1≤μcavities in general populationHa:μcavities with toothpaste1>μ cavities in generalpopulation2c.σx̅=1.12 /√60 = 1.12 / 7.745: =.144z= 1.73-1.5 /.144= .23/.144: =1.5972d.±1.645(Jackson, p.205).2e.No, it should not be rejected. If the p-value is large,(> .05)than the evidence against the nullhypothesis is small.The conclusion is that using the manufacturer’s toothpaste prevents morecavities than their competitor’s toothpaste.2f.σx̅= 1.12 /√60 = 1.12 / 7.745: = .144CI = 1.50±1.96 x 1.12 /√60: = 1.50±1.96 x .144: = 1.50±.28341.5-.2834 =1.2166, 1.5 + .2834 =1.78344.He is morelikely to make a Type I error.6a.This is a two-tailed test.6b.Ho: μclassical music listeners≤μspatial abilityin general populationHa: μclassical musiclisteners> μspatial ability ingeneral population6c.x̅= 52 +59 + 63 + 65 + 58 + 55 + 62 + 63 + 53 + 59 + 57 + 61 + 60 + 59 / 14: = 59(52-59)² / 14-1, + (59-59)² / 14–1: = 3.80259-58 / 3.802 /√14 = 1 / 1.0161:.9841

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Document Details

University
Northcentral University
Course
BTM 8106
Subject
Business Management

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