SNHU MAT 243 (Applied Statistics for
STEM) QUIZ THREE
Which of the following alternative hypotheses makes a hypothesis test two-tailed?
Select one.
Question options:
Parameter is not equal to a value
Parameter is greater than a value
Parameter is less than a value - ANS-Parameter is not equal to a value
Which of the following methods from Python's scipy.stats submodule is used to
calculate a confidence interval based on the Normal Distribution? Select one.
Note: st is from the import command import scipy.stats as st
Question options:
st.norm.normal
st.t.confidence_interval
st.norm.confidence_interval
st.norm.interval - ANS-st.norm.interval
Which of the following Python methods in statsmodels module is used to perform
hypothesis test for a population proportion? Select one.
Question options:
prop_hypothesis_test(x, n, null hypothesis value, alternative hypothesis value)
prop_1samp_hypothesistest(x, n, null hypothesis value, alternative hypothesis value)
means_1samp_ttest(mean, std_dev, n, null hypothesis value, alternative hypothesis
value)
proportions_ztest(counts, nobs, value) - ANS-proportions_ztest(counts, nobs, value)
Which of the following alternative hypotheses make a hypothesis test one-tailed? Select
all that apply.
Question options:
Parameter is less than a value
Parameter is greater than a value
Parameter is not equal to a value - ANS-Parameter is less than a value
Parameter is greater than a value
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