Mathematics, 28.01.2020 05:31, herchellann302

Bella has sampled the heights of 30 students at ridgemont high and obtained a mean of 64.2 inches. he constructs a 90% confidence interval, which turns out to be (61.0, 67.4). what is the ma
a) 2.1 inches

b) 3.2 inches

c) 4.2 inches

d) 6.4 inches rgin of error?

Answers: 3

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Bella has sampled the heights of 30 students at ridgemont high and obtained a mean of 64.2 inches. h...