The following table lists the market share of the four firms in a particular industry in 2010
Question:
The following table lists the market share of the four firms in a particular industry in 2010 and total sales for each firm in 2011.
a. Specify the competing hypotheses to test whether the market shares in 2011 are consistent with those from 2010.
b. At the 1% significance level, find the critical value.
c. Calculate the value of the test statistic.
d. Do the sample data suggest that the market shares changed from 2010 to2011?
Transcribed Image Text:
Market Share in 2010 0.40 0.30 0.20 0.10 Total Sales in 2011 (in billions of $) 200 180 100 70 Firm 4
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a Not all equal their hypothesized values b The critical value with Reject if c Firm 1 200 22000 ...View the full answer
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Related Book For
Essentials Of Business Statistics Communicating With Numbers
ISBN: 9780078020544
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly
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