1.8 MOE & Confidence Intervals

Given the confidence interval of 36 to 54, what is the margin of error?

• 9

• 18

• 36

• 45

Tags

CCSS.HSS.IC.B.4

Given a margin of error of 4.5, which of the following could NOT be the confidence interval.

• (54, 63)

• (91, 100)

• (203, 212)

• (314, 322)

Tags

CCSS.HSS.IC.B.4

Find the confidence interval for a mean of 155 and a margin of error of 27.

• (128, 182)

• (128, 155)

• (155, 182)

• (27, 155)

Tags

CCSS.HSS.IC.B.4

If 84% of people surveyed like peanut butter and the margin of error is 3.7%, which of the following is NOT a reasonable value?

• 80%

• 81%

• 85%

• 87%

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

If the mean of a sample is 21 and the margin of error is 5.1, what would be a reasonable mean for the population?

• 15.4

• 17.8

• 26.5

• 27.2

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Given the confidence interval of 19 to 33, what is the margin of error?

• 7

• 14

• 19

• 33

Tags

CCSS.HSS.IC.B.4

Given a margin of error of 5.7, which of the following could NOT be the confidence interval.

• (33.5, 44.9)

• (51.3, 62.7)

• (23.8, 35.2)

• (31.4, 42.9)

Tags

CCSS.HSS.IC.B.4

Find the confidence interval for a mean of 142.5 and a margin of error of 5.2.

• (5.2, 142.5)

• (137.5, 142.5)

• (142.5, 147.5)

• (137.3, 147.7)

Tags

CCSS.HSS.IC.B.4

If 67% of people surveyed like popcorn and the margin of error is 4.8%, which of the following is NOT a reasonable value?

• 62%

• 65%

• 69%

• 71%

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

If the mean of a sample is 203 and the margin of error is 4.6, what would be a reasonable mean for the population?

• 99.2

• 198.3

• 207.2

• 207.7

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4