Question

Consider the following import statement in Python, where the statsmodels module is called in order to use the ztest method. What are the inputs to ztest method? Select one.

from statsmodels.stats.weightstats import ztest

Question options:

	count of observations that meet a condition (count), total number of observations (nobs)
	A dataframe column (an array) of data values, hypothesized value of the population mean.
	None of the above
	zscore for the level of significance (zscore), hypothesized value of the population mean.

Answer 1

Option B

A dataframe column (an array) of data values, hypothesized value of the population mean.

As for the test case we have to input the array of values and the hypothesized value to the given method.

The sample inputs as below:

x = {1, 2, 3, 5, 8, 9}

y = 4

ztest(x, value = 4);