1. The numbers below represent heights (in feet) of 3-year old elm trees. 5.1, 5.5, 5.8,...

1. The numbers below represent heights (in feet) of 3-year old elm trees. 5.1, 5.5, 5.8, 6.1, 6.2, 6.4, 6.7, 6.8, 6.9, 7.0, 7.2, 7.3, 7.3, 7.4, 7.5, 7.7, 7.9, 8.1, 8.1, 8.2, 8.3, 8.5, 8.6, 8.6, 8.7, 8.7, 8.9, 8.9, 9.0, 9.1, 9.3, 9.4, 9.6, 9.8, 10.0, 10.2, 10.2
Using the chi-square goodness-of-fit test, determine whether the heights of 3-year old elm trees are normally distributed, at the

a =.05 significance level. Also, find the p
value.

Suppose that X is normal, where µ is known and σ2 is unknown, and let X1, …, Xn be a random sample from X. Let ?2 ̂ = 1 ? ∑ (?? − ?)2 ? ?=1 .

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orchestra answered 1 year ago

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