A one.nku.edu | Most Popular x HW 3.1: Confidence Interval for t X NKU Imath Assessment X NKU Imath Assessment X + X C & https://imath.nku.edu/assessment/printtest.php Hide Intro and Between-Question Text Each question of the assignment may be completed up to 3 times (unless otherwise noted). When interpreting the confidence intervals, the limits of the interval should be written as percentages rounded to two decimal places. #1 Points possible: 10. Total attempts: 3 Mobile technology has changed the way consumers access information and entertainment. In 2014, it was reported that 45.6% of smartphone users between the ages of 18 and 29 regularly use their smartphone to watch movies or TV through a paid subscription service (such as Netflix or Hulu). The Pew Research Organization undertook a study to see if o this percentage has changed in the last year. A random sample of 270 smartphone users in this age range was selected, and it was found that 139 of those sampled use their smartphone to watch movies or TV through a paid subscription service. Test the appropriate hypotheses using a significance level of 0.10. S . Ho: Select an answer v ? v Ha: Select an answer v ? v + . a= decision rule: reject Ho if probability |? v a . Test Statistic: z = (Note: round the z-score to two decimal places - carry at least four decimal places throughout all of your calculations) . probability = (Note: round the probability to four decimal places) . decision: Select an answer v . Conclusion: At the 0.10 level, there Select an answer | significant evidence to conclude the percentage of smartphone users between the ages of 18 & 29 who regularly use their smartphones to watch movies or TV through a paid service is Select an answer | than 45.6%. #2 Points possible: 6. Total attempts: 3 Suppose the following hypotheses are tested: Ho: p = 0.306 versus Ha: p > 0.306 What is the appropriate decision rule for this test? O reject Ho if probability