Question

A researcher claims that greater than 65% of Americans are bitten by wild animals each year and is going to collect a random sample to try and substantiate this claim.

Choose the appropriate hypotheses and identify the test as one-sided or two-sided.

	A.	H 0: p=.65 H a: p>.65 The test is two-sided.
	B.	H 0: p=.65 H a: p  ?.65 The test is one-sided.
	C.	H 0: p=.65 H a: p<.65 The test is one-sided.
	D.	H 0: p=.65 H a: p  ?.65 The test is two-sided.
	E.	H 0: p=.65 H a: p<.65 The test is two-sided.
	F.	H 0: p=.65 H a: p >.65 The test is one-sided.

Answer 1

According to the problem,

Our hypothesis is,

i.e. The proportion of Americans bitten by wild animals each year is 0.65

According to the problem, Our hypothesis is, H_0: P = 0.65 i.e. The proportion of Americans bitten by wild animals each year is 0.65 H-1: P greaterthan 0.65 i.e. The proportion of Americans bitten by wild animals each year is greater than 0.65. This is one tail test. (right tail test) answer is F).

i.e. The proportion of Americans bitten by wild animals each year is greater than 0.65.

This is one tail test. (right tail test)

answer is F).