Posted: February 11th, 2016
Question:
Express the confidence interval using the indicated format. (The confidence intervals are based on the proportions of red, orange, yellow and blue M&M’s in Data Set 20 from Appendix B which is attached). Chapter information is also attached.
Express the confidence interval 0.165 < p < 0.335 in the form of p^ ± E.
Below is a step by step possible answer/solution to the question. Please work the same problem out doing it your own way (POST YOUR COMPLETE & DETAILED SOLUTION) and see if you come up with the same answer. If your answer differ, say why.
STEPS:
Point estimate of p
p^ = ((upper confidence interval limit) + (lower confidence interval limit)) divided by 2.
p^ = .5/2
p^ = .25
Margin of error
E = ((upper confidence interval limit) – (lower confidence interval limit)) divided by 2.
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