Mathematics, 03.03.2020 00:00 silverns
A quality control technician works in a factory that produces computer monitors. Each day, she randomly selects monitors and tests them to make sure that they do not have any dead pixels. Over the course of a month, she tested 300 monitors and found 24 monitors with dead pixels. The technician conducts a one-proportion hypothesis test at the 5% significance level, to test whether the true proportion of monitors with dead pixels is greater than 5%.
a. H0:p=0.05; Ha:p>0.05, which is a right-tailed test.
b. Use Excel to test whether the true proportion of monitors with dead pixels is greater than 5%. Identify the test statistic, z, and p-value, rounding to three decimal places.
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