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Which of the following Python methods is used to perform hypothesis testing for a population mean when the population standard deviation is unknown?

a. uttest(dataframe, null hypothesis value)
b. ztest(dataframe, null hypothesis value)
c. prop_1samp_hypothesistest(dataframe, n, alternative hypothesis value)
d. ttest_1samp(dataframe, null hypothesis value)

Sagot :

Answer:

B: ztest(dataframe, null hypothesis value)

Anthougoidn

The Python method that is used to perform a test of hypothesis for a population mean with an unknown population standard deviation is d. ttest_1samp(dataframe, null hypothesis value).

  • A t-test is normally applied when the population standard deviation is not known.  The researcher will use the sample standard deviation.

  • While the z-test can also be used in Python to perform hypothesis testing with a known population standard deviation and a sample size that is larger than 50, only the t-test can be applied with an unknown population standard deviation or a sample size less than 50.

Thus, the only Python method to carry out hypothesis testing with unknown population standard deviation is the t-test, which is given in option d.

Learn more about hypothesis testing at https://brainly.com/question/15980493

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