1. -1.25 points MBasicStat7 16.E.004 My Notes Ask Your Teach A poll in November
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1. -1.25 points MBasicStat7 16.E.004 My Notes Ask Your Teach A poll in November 2013 found that 57% of the people in the sample said they want to lose weight. They announced, "For results based on the total sample of national adults, one can say with 95% confidence that the maximum margin of sampling error is 5 percentage points. (a) What is the 95% confidence interval for the percent of all adults who want to lose weight? Enter your answers as whole numbers.) to ?, (b) what does it mean to have 95% confidence in this interval? o 95% confidence means that this interval was produced using a process for which there is a 95% chance the interval contains the actual percent of adults in the population who want to lose weight. 95% confidence means that this interval was produced using a process for which, in the long run, 95% of all samples of the same size give an interval that contains the actual percent of adults in the population who want to lose weight. o 95% confidence means that this interval was produced using a process for which, in the long run, 95% of all samples of the same size give an interval that contains the actual percent of adults in the population who don't want to lose weight. 95% confidence means that this interval was produced using a process for which there is a 95% chance the midpoint of the interval is the actual percent of adults in the population who want to lose weight o 95% confidence means that this interval was produced using a process for which there is a 95% chance the interval contains the actual percent of adults in the population who don't want to lose weight.Explanation / Answer
a)
Confidence interval is
(0.57 -0.05, 0.57 +0.05)
=0.52 to 0.62
b)
95% confidence means that this interval was produced using a process for which, in the long run, 95% of all samples of the same size give an interval that contains the actual percent of adults in the population who want to lose weight.
Option B is correct
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