# Hypothesis Testing of Mean: FICO credit rating scores

See attached file.

Data set attached includes a simple random sample of FICO credit rating scores. As of this writing, the Mean FICO score was reported to be 678. Use a 0.05 significance level to test the claim that the sample of FICO scores comes from a population with a mean equal to 678.

H0:

H1:

Test Statistic [Show procedure.]

P-value:

Conclusion (i.e. decision) about H0:[reject/fail to reject.]

Final Conclusion on the claim [Use the wording in Figure 8-7, page 403.]

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Testing a Claim about a Standard Deviation or Variance

Data set attached includes a simple random sample of FICO credit rating scores. As of this writing, the Mean FICO score was reported to be 678. Use a 0.05 significance level to test the claim that the sample of FICO scores comes from a population with a mean equal to 678. ...

#### Solution Summary

The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.