It has been claimed from previous studies that the averagediameter of ball bearings from this manufacturing process is 2.30cm. Based on the sample of 50 that you collected, is there evidenceto suggest that the average diameter is greater than 2.30 cm?Perform a hypothesis test for the population mean at alpha =0.01.
~Define the null and alternative hypothesis for this test inmathematical terms and in words.
~Report the level of significance.
~Include the test statistic and the P-value. See Step 3 in thePython script. (Note that Python methods return two tailedP-values. You must report the correct P-value based on thealternative hypothesis.)
~Provide your conclusion and interpretation of the results.Should the null hypothesis be rejected? Why or why not?
INFO:
z-test hypothesis test for population meantest-statistic = 2.73two tailed p-value = 0.006390% confidence interval (rounded) = (2.4, 2.63)
99% confidence interval (rounded) = (2.33, 2.69)
Thank you!
It has been claimed from previous studies that the average diameter of ball bearings from this manufacturing process is
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It has been claimed from previous studies that the average diameter of ball bearings from this manufacturing process is
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