Concept explainers
a.
Check whether it is appropriate to use the large sample confidence interval for the population proportion to estimate the proportion of transportation service customers who have tried Uber or Lyft at least once and explain the reason.
b.
Check whether it is appropriate to use the bootstrap confidence interval for the population proportion to estimate the proportion of transportation service customers who have tried transportation apps at least once and explain the reason.
c.
Obtain the 95% confidence interval for the proportion of customers 55 or older who have used transportation apps at least once and interpret it.
d.
Check whether the adults who have used transportation apps at least once (21%), fall within the bootstrap confidence interval in part (c) and explain what this indicates.
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Introduction To Statistics And Data Analysis
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