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BaLLatris [955]
3 years ago
6

You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who ow

n cats. You sample 60 men, and 45% own cats. You sample 120 women, and 35% own cats. Find the test statistic, rounded to two decimal places. Find the test statistic, rounded to two decimal places.
Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0

Answer:

Test statistic =1.30

Step-by-step explanation:

Given that you are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.

                                             Men                Women            Difference

Sample size n                        60                     120

Proportion p_1, p_2              0.45                   0.35                 0.10

60 120 180

0.45 0.35 0.383333333

27 42 69

p = 0.3833

Std error for proportion difference = \bar p (1-\bar p)(\frac{1}{n_1}+\frac{1}{n_2})\\=0.3833(0.6167)(\frac{1}{60}+\frac{1}{120})\\=0.0769

Test statistic = \frac{p_1-p_2}{\bar p (1-\bar p)(\frac{1}{n_1}+\frac{1}{n_2})  }

=1.3008

=1.30

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