Question
The adoption of smart phones and social media apps has been much discussed. One aspect of thesedevices is that students tend to be distracted by
The adoption of smart phones and social media apps has been much discussed. One aspect of thesedevices is that students tend to be distracted by their phones during class. A recent survey reportedthat 86% of 1004 randomly selected females used their smart phones during class time, comparedto 81% of 1009 randomly selected males. Do these results confirm a higher smart phone usageamong females? Use a significance level of =0.05. a. Give the name of the hypothesis test that would be appropriate for this situation. (1 point) b. State the hypotheses in symbols. (2 points) c. Use your calculator to perform the appropriate hypothesis test and report the test statistic and P-value. (3 points) d. Write a full conclusion for this test in the context of the problem. (2 points) e. Find a 90% confidence interval for the difference in the proportion of males and females who use their phone during class. (2 points) f. Interpret the confidence interval in the context of this problem. (2 points) g. Does this confidence interval support your conclusion in part (d)? Explain. (2 points)
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