Question

The rate of birth defects in the general population is 0.5% of all children born. A group protesting the construction of a new power line claims that the rate of birth defects in children born to women who lived near major power lined during pregnancy is higher than normal. A sample of 1800 women who lived near power lines during pregnancy was selected and it was found that 0.94% of them gave birth to babies with birth defects.

            For the test conducted, the hypotheses are:

            H₀: p = 0.005    and   H_A: p > 0.005.

WITH EXPLAINATION OF WORK

            At a level of significance of 0.01, what is the conclusion of this test?

Answer 1

conclusion : there is enough evidence to support the claim that the rate of birth defects in children born to women who lived near major power lined during pregnancy is higher than normal.