14 Find the 97 confidence interval for the proportion of yellow MMs in that bag

# 14 find the 97 confidence interval for the proportion

• Homework Help
• 6
• 89% (18) 16 out of 18 people found this document helpful

This preview shows page 2 - 5 out of 6 pages.

14 Find the 97% confidence interval for the proportion of yellow M&Ms in that bag. a) [0.018, 0.235] b) [0.038, 0.285] c) [0.118, 0.285] d) [0.168, 0.173] e) [0.118, 0.085] f) None of the above Question 6 Your answer is CORRECT. Mars Inc. claims that they produce M&Ms with the following distributions:
11/2/2017 CourseWare ; 3/6 Brown 30% Red 20% Yellow 20% Orange 10% Green 10% Blue 10% A bag of M&Ms was randomly selected from the grocery store shelf, and the color counts were: Brown 24 Red 24 Yellow 19 Orange 14 Green 16 Blue 15 Find the 99% confidence interval for the proportion of blue M&Ms in that bag. a) [0.101, 0.106] b) [0.051, 0.017] c) [0.051, 0.217] d) [-0.029, 0.217] e) [-0.049, 0.167] f) None of the above Question 7 Your answer is CORRECT. Mars Inc. claims that they produce M&Ms with the following distributions: Brown 30% Red 20% Yellow 20% Orange 10% Green 10% Blue 10% How many M&Ms must be sampled to construct the 98% confidence interval for the proportion of red M&Ms in that bag if we want a margin of error of ± .14? a) 34 b) 45 c) 35 d) 44 e) 46 f) None of the above Question 8 Your answer is CORRECT. An experimenter flips a coin 100 times and gets 56 heads. Find the 96.5% confidence interval for the probability of flipping a head with this coin.
11/2/2017 CourseWare ; 4/6 a) [0.355, 0.615] b) [0.375, 0.665] c) [0.455, 0.665] d) [0.505, 0.510] e) [0.455, 0.465] f) None of the above Question 9 Your answer is CORRECT. Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to flip the coin in order to obtain a 90% confidence interval of width of at most .18 for the probability of flipping a head? a) 83 b) 84 c) 87 d) 50 e) 51 f) None of the above Question 10 Your answer is CORRECT.