Based on the scale of measurement for the data, which of the following tests are
ID: 3315768 • Letter: B
Question
Based on the scale of measurement for the data, which of the following tests are para- metric? Which are nonparametric? (al A researcher measures the proportion of schizophrenic patients born in each season (b] A researcher measures the average age that schizophrenia is diagnosed among male and female patients (c) A researcher tests whether frequency of Internet use and social interaction are independent. (d) A researcher measures the amount of time (in seconds] that a group of teenag- ers uses the Internet for school-related and non-school-related purposes.Explanation / Answer
parameric test are applied to variables measured on ratio/interval scale of measurment. they are ased on assumption that population from samples are drawn is normally distributed.
Non parametric test can be used when data is measured on nominal or ordinal scale, sample size is very small
a) proportions are measured on ratio scale of measurment. hence parameric test are applied here. z test for proportions
b)age is measured on ratio scale of measurment. hence parameric test are applied here. t test for independent samples
c) frequencies are discrete variables. hence parameric test are applied here. chi square test of independence is used here
d) amount of time is measured on ratio scale of measurment. hence parameric test are applied here. t test for independent samples
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