YOU MAY NEED TO USE STATCRUNCH TO ANSWER THIS QUESTION. A manager wishes to see if the time (in minutes) it takes for th

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YOU MAY NEED TO USE STATCRUNCH TO ANSWER THIS QUESTION.
A manager wishes to see if the time (in minutes) it takes fortheir workers to complete a certain task will change when they areallowed to wear ear buds at work. A random sample of 20 workers'times were collected before and after. Test the claim that the timeto complete the task has changed at a significance levelof α=0.01α=0.01. For the context of thisproblem, μd=μafter−μbeforeμd=μafter-μbefore where thefirst data set represents after and the second data set representsbefore. Assume the population is normally distributed. Roundanswers to 4 decimal places. Ho:μd=0Ho:μd=0 Ha:μd≠0Ha:μd≠0You obtain the following sample of data:
What is the critical value for this test? critical value = ±±What is the test statistic for this sample? test statistic = The test statistic is... Select an answer not in thecritical region in the critical region This test statistic leads to a decision to... Select ananswer fail to reject the null accept theclaim reject the claim reject the null accept thenull As such, the final conclusion is that...