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Hypothesis Testing T-Test Problems

I would like you please solve the posted problem using the t-test. Could you please use the following variables: ( PCREV) and (TDAYS).
Could you please write a question (Hypothesis)? before solving the problem?
Could you please write the Hypothesis, Null, and Alternative clearly?
After you solve it could you write a clear conclusion answering the question (So what?)
Could you send me the Excel sheet ?


Solution Summary

Step by step method for computing test statistic t test is given in the answer.