1|Page
CNSL 503 MODULE 4 TEST EXAM ACCURATE AND
FREQUENTLY TESTED QUESTIONS AND 100%
CORRECT ANSWERS|| LATEST AND COMPLETE
UPDATE WITH EXPERT VERIFIED SOLUTIONS||
SURE PASS
Consider the example of the exam scores from Figure 4.3 ( μ = 75 , σ = 5 ).
Suppose the teacher would like to know the proportion of scores on the exam that
are below 65.
1. transform raw score to a z-score
2 use normal table to find the p-value for z score
The proportion of scores below the z= -2.00 is 0.02275 or 2.275%. Therefore, a
test score below 65 is unusual since less than 2.275% of the scores fall below it.
A range of values that is likely to contain the true population mean. confidence
interval
What states that the distribution containing all sample means will approach the
population mean. This implies that the population mean will be close to the sample
mean.
The Central Limit Theorem
95% confidence interval
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he 95% confidence interval, for example, means that 95% of the experiments with
the given treatment will contain the true population mean. Consequently, 5% (or 1
in 20) of the experiments will not contain the true population mean. A 95%
confidence interval implies that the researcher is 95% confident that the population
mean lies in the interval that is centered around the sample mean.
Margin of error
z crit *(population standard deviation/ sqrt (sample size)
T/F Hypothesis testing can determine the absolute size of the effect of the
treatment. It can determine whether the treatment caused a substantial effect
False.
, it cannot determine the absolute size of the effect of the treatment. In other words,
it cannot determine whether the treatment caused a substantial effect
What term refers to a frequency distribution that follows a bell-shaped,
symmetrical, and unimodal curve?
normal distribution
In a normal distribution, the mean is located where? in the middle of the curve
T/F For a normal curve, the median, mean, and mode are typically equal
T/F The area below the curve is 120%. True
CNSL 503 MODULE 4 TEST EXAM ACCURATE AND
FREQUENTLY TESTED QUESTIONS AND 100%
CORRECT ANSWERS|| LATEST AND COMPLETE
UPDATE WITH EXPERT VERIFIED SOLUTIONS||
SURE PASS
Consider the example of the exam scores from Figure 4.3 ( μ = 75 , σ = 5 ).
Suppose the teacher would like to know the proportion of scores on the exam that
are below 65.
1. transform raw score to a z-score
2 use normal table to find the p-value for z score
The proportion of scores below the z= -2.00 is 0.02275 or 2.275%. Therefore, a
test score below 65 is unusual since less than 2.275% of the scores fall below it.
A range of values that is likely to contain the true population mean. confidence
interval
What states that the distribution containing all sample means will approach the
population mean. This implies that the population mean will be close to the sample
mean.
The Central Limit Theorem
95% confidence interval
, 2|Page
he 95% confidence interval, for example, means that 95% of the experiments with
the given treatment will contain the true population mean. Consequently, 5% (or 1
in 20) of the experiments will not contain the true population mean. A 95%
confidence interval implies that the researcher is 95% confident that the population
mean lies in the interval that is centered around the sample mean.
Margin of error
z crit *(population standard deviation/ sqrt (sample size)
T/F Hypothesis testing can determine the absolute size of the effect of the
treatment. It can determine whether the treatment caused a substantial effect
False.
, it cannot determine the absolute size of the effect of the treatment. In other words,
it cannot determine whether the treatment caused a substantial effect
What term refers to a frequency distribution that follows a bell-shaped,
symmetrical, and unimodal curve?
normal distribution
In a normal distribution, the mean is located where? in the middle of the curve
T/F For a normal curve, the median, mean, and mode are typically equal
T/F The area below the curve is 120%. True
