A retrospective study uses data from the past, such as official records or interviews.
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Ordinal level of measurement of data applies to data that ca…
Ordinal level of measurement of data applies to data that can be arranged in order.
Cluster sampling is one of the scientific sampling method.
Cluster sampling is one of the scientific sampling method.
A placebo lacks the active ingredient of a treatment being t…
A placebo lacks the active ingredient of a treatment being tested in a study.
A treatment group in an experiment is the group that receive…
A treatment group in an experiment is the group that receives treatment.
The nurse’s total taxable income of $100,030 last year is at…
The nurse’s total taxable income of $100,030 last year is at ratio level of measurement.
The calculation of cumulative frequency does not involve tot…
The calculation of cumulative frequency does not involve total frequencies.
A distribution that is not symmetric must contain a value th…
A distribution that is not symmetric must contain a value that is an outlier.
An experiment is an example of a prospective study.
An experiment is an example of a prospective study.
If the confidence interval for a study is given as 95%, it m…
If the confidence interval for a study is given as 95%, it means that the sample statistic can estimate correctly the population parameter 95 times out 100.