Question
Which of the following statements is the best description of statistical sampling? One sample is just as good as another when it comes to making
Which of the following statements is the best description of statistical sampling?
One sample is just as good as another when it comes to making inferences.
A population is used to make inferences about a sample.
A sample is used to make inferences about a population.
Descriptive statistics are applied to populations rather than to samples.
2.
This figure shows the standard normal distribution. (see attachment)
According to this figure, if someone has azscore of ?1, this places her or him in the ____ percentile of the standard normal distribution?
95th
16th
50th
2.5th
3.
When using a random sample, the sample mean,M, will
tend to be near the population mean, ?.
differ from the population mean, ?, by the SD.
always be just a bit less than the population mean, ?.
be exactly the same as the population mean, ?.
4.
In general, which of these would provide the best estimate of the population mean?
a sample of 1,000 participants
a sample of 1 participant
It is not the size of the sample but its quality that matters most.
a sample of 100 participants
5.
What is the standard error of the mean?
the sample size
a problem that occurs when trying to calculate a mean with sample size of zero
the average amount by which a sample mean mis-estimates the population mean
another name for a z score
6.
The standard error of the mean is
the standard deviation of the population divided by the sample size.
the ratio of the median and the mode.
the mean of the outliers divided by the standard deviation.
the mean of the population divided by M.
7.
According to the ________, the means of many different samples tend to be normally distributed.
Central Limit Theorem
Law of Small Numbers
Variation Tendency Hypothesis
Hook/Smyrnoff Law
8.
A normal distribution
has a U shape.
has two modes.
is symmetrical.
is not commonly found in psychological research.
9.
Which of the following expressions is the correct formula for azscore of a sample from a population?
?X
(X - ?) / ?
?SD2
(X - ?)2/ n
10.
Juan worked really hard in his math class and scored way above the class average. What will Juan'szscore be?
less than 0
greater than 0
right around 0
within 1 SD of the class average
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started