A consumer products company is formulating a new shampoo and is interested in foam height (in millimeters). Foam height is approximately normally distributed and has a standard deviation of 20 millimeters. The company wishes to test Ho: H = 175 millimeters versus H: u > 175 millimeters using the results of n 10 samples. %3D Identify the appropriate hypotheses tests O a. Test on Mean, Variance Known O b. Test on Population Proportion Oc. Test on Variance and Standard Deviation Od. Test on Mean, Variance Unknown

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