Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95% confidence interval which was (19.1, 28.9). What is the margin of error?

A) 2.5 years

B) 4.9 years

C) 5 years

D) 6.7 years

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Mathematics

2 November, 11:41

Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95% confidence interval which was (19.1, 28.9). What is the margin of error?

A) 2.5 years

B) 4.9 years

C) 5 years

D) 6.7 years

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Isabelle Woods · Answer 1

The correct answer for the question that is being presented above is this one: "D) 6.7 years." Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95% confidence interval which was (19.1, 28.9). The margin of error is 6.7 years

Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95% confidence interval which was (19.1, 28.9). What is the margin of error?A) 2.5 yearsB) 4.9 yearsC) 5 yearsD) 6.7 years

Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95% confidence interval which was (19.1, 28.9). What is the margin of error?

A) 2.5 years

B) 4.9 years

C) 5 years

D) 6.7 years