1
CNSL 503
CNSL 503/ CNSL503| Statistics Module 3 | Questions
with Correct Answers| Latest Update (2025/2026)
|Guaranteed Pass | GRADE A |
1. What theory identifies several key characteristics of a
distribution of sample means?: Central limit theorem
2. Sample size is considered large if it contains at least ____
members.: 30 3. What is another name for the standard deviation
of a distribution of sample means?: Standard error (SE)
4. Calculate the standard error of a distribution of sample
means for a sample size of 50 and a population standard
deviation ()Ã of 2.5.: 0.35
5. What term refers to the likelihood of a certain outcome
occurring?: Probability
6. Calculate the probability of rolling an even number on a
single fair dice.: 3/6 = 0.5
CNSL 503
, 2
CNSL 503
7. Calculate the probability of choosing a random day in
January out of all possible dates in a calendar year.: p(January) =
31/365 = 0.085
8. A driver notices that his car frequently backfires. Out of 250
drives he has taken in his car lately, he observed the car backfire
176 times. What is the
1/2
probability that the car will backfire the next time he drives his
car?: p(backfire) = 176/250 = 0.704
9. What term is used to delineate a sample statistic that
deviates from a population parameter to a degree that appears to
be beyond chance?: Statistically significant
10. What is the general value that is used to determine statistical
significance?: 0.05
11. Which of the following terms describes a claim that is made
about a particular population parameter?: Hypothesis
12. What is the difference between the null and alternative
hypotheses?: The null hypothesis (H0) is the beginning assumption of
CNSL 503
CNSL 503
CNSL 503/ CNSL503| Statistics Module 3 | Questions
with Correct Answers| Latest Update (2025/2026)
|Guaranteed Pass | GRADE A |
1. What theory identifies several key characteristics of a
distribution of sample means?: Central limit theorem
2. Sample size is considered large if it contains at least ____
members.: 30 3. What is another name for the standard deviation
of a distribution of sample means?: Standard error (SE)
4. Calculate the standard error of a distribution of sample
means for a sample size of 50 and a population standard
deviation ()Ã of 2.5.: 0.35
5. What term refers to the likelihood of a certain outcome
occurring?: Probability
6. Calculate the probability of rolling an even number on a
single fair dice.: 3/6 = 0.5
CNSL 503
, 2
CNSL 503
7. Calculate the probability of choosing a random day in
January out of all possible dates in a calendar year.: p(January) =
31/365 = 0.085
8. A driver notices that his car frequently backfires. Out of 250
drives he has taken in his car lately, he observed the car backfire
176 times. What is the
1/2
probability that the car will backfire the next time he drives his
car?: p(backfire) = 176/250 = 0.704
9. What term is used to delineate a sample statistic that
deviates from a population parameter to a degree that appears to
be beyond chance?: Statistically significant
10. What is the general value that is used to determine statistical
significance?: 0.05
11. Which of the following terms describes a claim that is made
about a particular population parameter?: Hypothesis
12. What is the difference between the null and alternative
hypotheses?: The null hypothesis (H0) is the beginning assumption of
CNSL 503
