Question

The following shows the number of individuals in a random sample of 300 adults who indicated they support the new tax proposal.

	Political Party	Support
	Democrats	100
	Republicans	120
	Independents	80

1. We are interested in determining whether the opinions of the individuals of the three groups are uniformly distributed. If the opinions of the individuals of the three groups are uniformly distributed, the expected frequency for each group is _____

		0.333
		0.50
		50
		None

Refer to question 1. The calculated value for the test statistic equals_____.

		300
		4
		0
		8

Refer to question 1. The number of degrees of freedom associated with this problem is _____.

		2
		3
		300
		299

Refer to question 1.  The test statistic for goodness of fit has a chi-square distribution with k – 1 degrees of freedom provided that the expected frequencies for all categories are _____.

		5 or more
		10 or more
		k or more
		2k

Refer to question 1.  This test for goodness of fit _____.

		is a lower-tail test
		is an upper tail test
		is a two-tailed test
		can be a lower-tail or an upper-tail test

Answer 1