Question: A random sample of 150 observations was classified into the categories shown in the following table: a. Do the data provide sufficient evidence that the

A random sample of 150 observations was classified into the categories shown in the following table:

a. Do the data provide sufficient evidence that the categories are not equally likely? Use a = .10.
b. Form a 90% confidence interval for p2, the probability that an observation will fall into category 2.

Category 2 3 4 ni /t 28 35 33 25 29

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