The area of the regular octagon is 10.15 cm^2. What is the measure of the apothem, rounded to the nearest hundredth of a centime
ter?
A.1.27 cm
B.1.75 cm
C.2.33 cm
D.2.54 cm
A.1.27 cm
B.1.75 cm
C.2.33 cm
D.2.54 cm
2 answers:
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Since we are not given any information about the proportion, we will assume the sample proportion to be 0.50
so,
p = 0.50
The Error is 10% percentage point. This means that on either side of the population proportion the error is 5% so E = 0.05
z = 1.645 (Z value for 90% confidence interval)
The margin of error for population proportion is calculated as:
This means 271 students should be included in the sample
so,
p = 0.50
The Error is 10% percentage point. This means that on either side of the population proportion the error is 5% so E = 0.05
z = 1.645 (Z value for 90% confidence interval)
The margin of error for population proportion is calculated as:
This means 271 students should be included in the sample