SNHU MAT 243 (Applied Statistics for
STEAM) QUIZ FOUR
The null and alternative hypotheses for a hypothesis test of the difference in two
population means are:
Null Hypothesis:
Alternative Hypothesis:
Notice that the alternative hypothesis is a two-tailed test. Suppose ttest_ind method
from scipy module is used to perform the test and the output is (-1.99, 0.0512). What is
the P-value for this hypothesis test? Select one.
Question options:
-1.99
0.0256
1.99
0.0512 - ANS-0.0512
Which of the following Python methods is used to perform a hypothesis test for the
difference in two population proportions? Select one.
Question options:
prop_hypothesis_test from statsmodels module
prop_1samp_hypothesistest from pandas module
prop_1samp_ztest from numpy module
proportions_ztest from statsmodels module - ANS-proportions_ztest from statsmodels
module
The null and alternative hypotheses for a hypothesis test of the difference in two
population means are:
Null Hypothesis:
Alternative Hypothesis:
Notice that the alternative hypothesis is a one-tailed test. Suppose ttest_ind method
from scipy module is used to perform the test and the output is (3.25, 0.0043). What is
the P-value for this hypothesis test? Select one.
Question options:
0.00215
-3.25
3.25
0.0043 - ANS-0.00215
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