Question

• Find the 80%, 95%, and 99% confidence intervals & margin error
• Create your own confidence interval (you cannot use 80%, 95%, and 99%) and make sure to show your work. Make sure to list the margin of error.

122	132	97	102	106
116	94	132	112	123
123	108	84	120	125
123	115	103	127	139
122	124	112	113	109
104	120	109	117	108
125	109	119	138	125
104	110	101	130	124
115	104	107	126	138
116	104	102	117	118

Answer 1

80% confidence interval:

Margin of error: 2.14

Lower Limit: 113.32

Upper limit: 117.60

Calculation procedure: (Refer formula column F)

90% confidence interval:

Margin of error: 2.74

Lower Limit: 112.72

Upper limit: 118.20

99% confidence interval:

Margin of error: 4.30

Lower Limit: 111.16

Upper limit: 119.76