Question
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
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= 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 | |||||||
---|---|---|---|---|---|---|---|
HDTVs Owned | None | One | More Than One | Row Total | |||
None | 15 | 15 | 13 | 43 | |||
One | 18 | 31 | 30 | 79 | |||
Two or More | 19 | 45 | 66 | 130 | |||
Column Total | 52 | 91 | 109 | 252 |
Click here for the Excel Data File (a)The hypothesis for the given issue isH0:HDTVs OwnedandIn Store Purchasesare independent. multiple choice 1
- Yes
- No
(b)Calculate the chi-square test statistic, degrees of freedom, and thep-value.(Round your test statistic value to 2 decimal places and thep-value to 4 decimal places.)
(c)Find the critical value for chi-Square. Refer tothe chi-squareAppendix Etable.(Round your answer to 3 decimal places.)
(d)We reject the null hypothesis. multiple choice 2
- Yes
- No
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