A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is less than 0.5. Assume that sample data consists of 66 girls in144
births, so the sample statistic of 11 Over 24 results in a z score that is 1 standard deviation
E. What is the value of the test statistic?
The test statistic is [ ] (type an integer or a decimal)
F. What is the P-Value? [ ] (Round to FOUR decimal places as needed)
G. What are the critical value(s)? [ ] (Round to TWO decimal places as needed. Use a comma to separate answers as needed.)
H. What is the area of the critical religion?
The area is [ ] (Round to TWO decimal places as needed)
Let p denotes the true proportion of baby girls.
To test against
and sample size
The test statistic can be written as
which under H0 follows a standard normal distribution.
We reject H0 at 0.01 level of significance if P-value < 0.01 or
The critical region is
The value of the test statistic
The critical value is
The area of the critical region is
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