How common are financial cost or contractual constraints associated with smartphone ownership? A survey of smartphone owners found her that
Suppose the survey was based on 200 smartphone owners in each of the four age groups: 18 to 29, 30 to 49, 50 to 64, and 65 +.
a. At the 0.05 level of significance, is there evidence of a difference among the age groups the age groups in the proportion of smartphone owners who have reached the maximum amount of data they are allowed to use as part of their plan, at least on occasion?
b. Determine the p-value in (a) and interpret its meaning.
c. If appropriate, use the Marascuilo procedure and
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Basic Business Statistics, Student Value Edition
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