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Short Quiz 10
Question 1
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Find the sample size given 90% confidence, Margin of Error = 0.05 and ̂p =0.30.
Select one:
a. 228
b. 208
c. 190
d. 301
Question 2
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Find the sample size given 95% confidence, Margin of Error = 0.12 and ̂p = 0.30.
Select one:
a. 85
b. 57
c. 49
d. 79
Question 3
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Proportion is a fraction expression where the _____________________ is in the numerator and the
_____________________ is the denominator.
Select one:
a. All of the choices are applicable
b. Sample Mean, Standard deviation
c. Desired Error, Margin of Error
d. None of the choices is applicable
e. Favorable response, Total number of responses
f. Sample Mean, Mean of Means
.
Question 4
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Find the sample size given 99% confidence, Margin of Error = 0.20 and ̂p =0.30.
Select one:
a. 31
b. 48
c. 35
d. 42
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Question 5
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Given the formula in determining the minimum sample size needed when estimating the population
proportion and if no approximation is known, what value of p̂ will be used?
Select one:
a. 0
b. 1
c. 2
d. 0.5
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Question 6
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The management of a local grocery store wants to estimate the average amount their customers
spend at the store to within 0.50 pesos, with a 90% confidence. What is the minimum sample size
required, if the standard deviation is assumed to be 4.50 pesos.
Select one:
a. 350
b. 129
c. 408
d. 220
Question 7
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Find the sample size given 90% confidence, Margin of Error = 0.08 and ̂p =0.30.
Select one:
a. 103
b. 78
c. 96
d. 89
Question 8
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Find the sample size given 95% confidence, Margin of Error = 0.10 and ̂p =0.30.
Select one:
a. 73
b. 50
c. 77
d. 81
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Question 9
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Find the sample size given 99% confidence, Margin of Error = 0.25 and ̂p =0.30.
Select one:
a. 37
b. 23
c. 84
d. 93
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Question 10
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The formula given below will give an output of
Select one:
a. Margin of Error
b. Confidence Coefficient Limits
c. Sample population mean
d. Confidence Interval for large samples