Is HDTV ownership related to quantity of purchases of other electronics? A Best Buy retail outlet collected the following data for a random sample of its recent customers. At a = 0.10, is the frequency of in-store purchases independent of the number of large-screen HDTVS owned (defined as 50 inches or more)? In-Store Purchases Last Month More Than HDTVS Owned None One One Row Total None 13 12 15 40 One 18 32 33 83 Two or More 17 46 63 126 Column Total 48 90 111 249 (a) The hypothesis for the given issue is Hg: HDTVS Owned and In Store Purchases are independent. O Yes O No (b) Calculate the chi-square test statistic, degrees of freedom, and the p-value. (Round your test statistic value to 2 decimal places and the p-value to 4 decimal places.) Test statistic Degrees of freedom p-value (c) Find the critical value for chi-Square. Refer to the chi-square Appendix E table. (Round your answer to 3 decimal places.) Critical value
Is HDTV ownership related to quantity of purchases of other electronics? A Best Buy retail outlet collected the following data for a random sample of its recent customers. At a = 0.10, is the frequency of in-store purchases independent of the number of large-screen HDTVS owned (defined as 50 inches or more)? In-Store Purchases Last Month More Than HDTVS Owned None One One Row Total None 13 12 15 40 One 18 32 33 83 Two or More 17 46 63 126 Column Total 48 90 111 249 (a) The hypothesis for the given issue is Hg: HDTVS Owned and In Store Purchases are independent. O Yes O No (b) Calculate the chi-square test statistic, degrees of freedom, and the p-value. (Round your test statistic value to 2 decimal places and the p-value to 4 decimal places.) Test statistic Degrees of freedom p-value (c) Find the critical value for chi-Square. Refer to the chi-square Appendix E table. (Round your answer to 3 decimal places.) Critical value
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
Transcribed Image Text:Is HDTV ownership related to quantity of purchases of other electronics? A Best Buy retail outlet collected the following data for a
random sample of its recent customers. At a = 0.10, is the frequency of in-store purchases independent of the number of large-screen
HDTVS owned (defined as 50 inches or more)?
In-Store Purchases Last Month
More Than
HDTVS Owned
None
One
One
Row Total
None
13
12
15
40
One
18
32
33
83
Two or More
17
46
63
126
Column Total
48
90
111
249
(a) The hypothesis for the given issue is Hg: HDTVS Owned and In Store Purchases are independent.
O Yes
O No
(b) Calculate the chi-square test statistic, degrees of freedom, and the p-value. (Round your test statistic value to 2 decimal places
and the p-value to 4 decimal places.)
Test statistic
Degrees of freedom
p-value
(c) Find the critical value for chi-Square. Refer to the chi-square Appendix E table. (Round your answer to 3 decimal places.)
Critical value
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