Statistics questions

MATH 245

1) 82.4%<p<84.6%

2) 0.164<p<0.266. Based on answering incorrectly

The procedure for constructing a confidence interval estimate for a population proportion can be found on page 1 of the Lesson 22 notes. Make sure the number of "successes" and the number of observations are entered into the correct fields, and that the confidence level is correct. Also, double check that your answers are entered as decimals rounded to three places (add trailing zeros as needed). 

3) The lower confidence limit of restaurant B interval is greater than the upper confidence

limit of restaurant A interval. Therefore, Restaurant B has a significantly higher

proportion of inaccurate orders.

Restaurant B's lower limit lies within Restaurant A's interval. Since the intervals overlap, we cannot say Restaurant B has a significantly higher proportion of inaccurate orders.

4) 1)752

2)722