Question

The type of plant favored by deer is shown in the following table. Volunteers observed the feeding habits of a random sample of 320 deer. Use a 0.05 level of significance to test the claim that the natural distribution of browse fits the deer feeding pattern.

Type of Browse	Plant Composition in Study Area	Observed Number of Deer Feeding on Plant
Sage Brush	32%	102
Rabbit Brush	38%	125
Salt Brush	12%	43
Service Berry	10%	27
Other	8%	23

a) State the null and alternate hypothesis.

b) What is the degree of freedom?

c) Using the level of significance and the degrees of freedom from above AND table A-4, find the critical chi-squared value.

d)

Find the expected value using the formula.

Round to the tenths place.

Expected = np

Observed	Expected
102	(a)
125	(b)
43	(c)
27	(d)
23	(e)

e. Find the value of chi-square statistics for the sample using the formula.

Remember to round O-E and (O-E)² to the HUNDREDTHS

Remember to round (O-E)² / E to the THOUSANDTHS

My sample statistic X²:

f) Based on my answers, I will:

A. Reject H0, the Null hypothesis
B. Accept H0, the Null hypothesis

Answer 1