Given (x – 7)2 = 36, select the values of x.
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Answer:
The sample size required is 225.
Step-by-step explanation:
The confidence interval for population mean (<em>μ</em>) is:
The margin of error is:
Given:
The margin of error is, <em>MOE</em> = 0.04
The confidence level is 95.44%.
The critical value of <em>z</em> for 95.44% confidence interval is:
So, .
Determine the sample size as follows:
Thus, the sample size required is 225.
If the denominator =0 so the function would be undefined.
