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lolerdog1 lolerdog1
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Gartner, Inc. reported that the market share for smartphones is as follows:



To test the validity of Gartner's report, a random sample of smartphone users was collected with the following results.



Using α = 0.05, what conclusions can be made about Gartner's report?
Textbook 

Business Statistics


Edition: 2nd
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kayjay19kayjay19
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More questions for this book are available here

H0: The smartphone market share is consistent with Gartner's report
H1: The smartphone market share is not consistent with Gartner's report




df = k - m - 1 = 5 - 0 - 1 = 4
α = 0.05
 = 9.488 
Because χ2 = 3.823 is less than  = 9.488, we fail to reject the null hypothesis. We have no evidence to conclude that the smartphone market share is not consistent with Gartner's report.

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