Question

Ch. 7&8, 7/8-7/14) Score: 0 of 1 pt 15 of 36 (14 complete) W Score: 38.89 7.3.45-T Ques A population has a proportion equal to 0.25. Calculate the probabilities below with n= 100. a. P(p <0.28) b. P(p>0.33) c. P(0.21 <p 50.33) d. Pp20.19) a. Pſps 0.28) = 0 (Round to four decimal places as needed.)

Answer 1

Question 1:

(a) 0.7558

Observed	Hypothesized
0.28	0.25	p (as decimal)
28/100	25/100	p (as fraction)
28.	25.	X
100	100	n
	0.0433	std. error
	0.69	z
	.7558	p-value (one-tailed, lower)

(b) 0.0323

Observed	Hypothesized
0.33	0.25	p (as decimal)
33/100	25/100	p (as fraction)
33.	25.	X
100	100	n
	0.0433	std. error
	1.85	z
	.0323	p-value (one-tailed, upper)

(c) 0.7899

Observed	Hypothesized		Observed	Hypothesized
0.33	0.25	p (as decimal)	0.21	0.25	p (as decimal)
33/100	25/100	p (as fraction)	21/100	25/100	p (as fraction)
33.	25.	X	21.	25.	X
100	100	n	100	100	n
	0.0433	std. error		0.0433	std. error
	1.85	z		-0.92	z
	.9677	p-value (one-tailed, lower)	.1778	p-value (one-tailed, lower)

(d) 0.9171

Observed	Hypothesized
0.19	0.25	p (as decimal)
19/100	25/100	p (as fraction)
19.	25.	X
100	100	n
	0.0433	std. error
	-1.39	z
	.9171	p-value (one-tailed, upper)

Question 2:

0.8222

Observed	Hypothesized
0.29	0.25	p (as decimal)
29/100	25/100	p (as fraction)
29.	25.	X
100	100	n
	0.0433	std. error
	0.92	z
	.8222	p-value (one-tailed, lower)