Question

Chapter 10 Homework Question 5 (of 5) value 10.00 points A study showed that 18 of 32 cell phone users with a headset missed their exit, compared with 8 of 32 talking to a passenger a 99 percent confidence interval for the diference in proportions (Round your answers to 4 decimal places.) The 99 percent confidence interval is fr Hints References eBook& Resources Hint e1 Check my.work O Type here to search
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Answer 1

The statistical software output for this problem is:

Two sample proportion summary confidence interval:

p₁ : proportion of successes for population 1
p₂ : proportion of successes for population 2
p₁ - p₂ : Difference in proportions

99% confidence interval results:

Difference	Count1	Total1	Count2	Total2	Sample Diff.	Std. Err.	L. Limit	U. Limit
p1 - p2	18	32	8	32	0.3125	0.11640363	0.012664123	0.61233588

Hence,

99% confidence interval for differences in proportion will be:

From 0.0127 to 0.6123