From the class data what is the 95 confidence interval for t

From the class data, what is the 95% confidence interval for the mean proportion of green m&ms. Assume anormally distributed population for the proportion of green m&ms contained in a bag. Show your work

Hint 1: The number of samples n is the number of bags tested by the class

Hint 2: Use the average and standard deviation computed for you in the second tanle given.

Hint 3. You answer should be a range of percentages/proportions

m&m class data - ENGR 110 F15

Numbers of each color are given in the table below.

Group #	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	total	%
Blue	11	15	21	6	10	15	12	11	7	12	15	19	15	8	10	187	0.217948718
Brown	6	15	4	11	7	8	6	9	8	12	14	3	8	12	7	130	0.151515152
Green	13	10	9	16	16	11	14	16	12	12	4	14	13	6	19	185	0.215617716
Orange	8	4	8	8	7	15	12	11	6	9	14	10	9	20	2	143	0.166666667
Red	8	9	8	7	12	7	6	7	13	8	5	5	5	9	10	119	0.138694639
Yellow	8	6	9	10	3	2	6	5	9	6	7	4	5	4	10	94	0.10955711
Total	54	59	59	58	55	58	56	59	55	59	59	55	55	59	58	858	1


Proportion of each color (see average and standard deviation column) are given in the table below.

Group #	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	ave (%)	st dev (%)
Blue	0.204	0.254	0.356	0.103	0.182	0.259	0.214	0.186	0.127	0.203	0.254	0.345	0.273	0.136	0.172	0.218	0.073
Brown	0.111	0.254	0.068	0.190	0.127	0.138	0.107	0.153	0.145	0.203	0.237	0.055	0.145	0.203	0.121	0.151	0.057
Green	0.241	0.169	0.153	0.276	0.291	0.190	0.250	0.271	0.218	0.203	0.068	0.255	0.236	0.102	0.328	0.217	0.071
Orange	0.148	0.068	0.136	0.138	0.127	0.259	0.214	0.186	0.109	0.153	0.237	0.182	0.164	0.339	0.034	0.166	0.076
Red	0.148	0.153	0.136	0.121	0.218	0.121	0.107	0.119	0.236	0.136	0.085	0.091	0.091	0.153	0.172	0.139	0.044
Yellow	0.148	0.102	0.153	0.172	0.055	0.034	0.107	0.085	0.164	0.102	0.119	0.073	0.091	0.068	0.172	0.110	0.043
Total	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1

From the class data, what is the 95% confidence interval for the mean proportion of green m&ms. Assume anormally distributed population for the proportion o

From the class data what is the 95 confidence interval for t

Solution

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