We are interested in looking at the percentage of households that own dogs in the U.S....

We are interested in looking at the percentage of households that own dogs in the U.S. and England. We are given the following information:

	Number of people Surveyed	Number of people who own a dog
U.S.	700	294
England	850	391

What is the p-value for this test if we are interested in testing to see if there is simply a difference in the proportions of people who own dogs in the U.S. and England?

	a.	0.0571
	b.	.10 < p-value < .20
	c.	0.9429
	d.	0.1142

Solutions

Expert Solution

We have given for the example

x1=294
n1=700

x2=391
n2=850

Estimate for sample proportion 1

Estimate for sample proportion 2

Pooled proportion

Z test statistic formula is

=-1.58

P value =0.1142....................by using Z table or Excel command =2*NORMSDIST(-1.58)

d.	0.1142

orchestra answered 1 year ago

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