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show complete steps in hypothesis testing: Ho, HA, Test Statistic, P-value, Decision, and Conclusion to receive full credit. Perform all hypothesis test at 5% level of significance. Much concern has been expressed regarding the practice of using nitrates as meat preservatives. In one study involving possible effects of these chemicals, bacteria cultures were grown in a medium containing nitrates. The rate of uptake of radio-labeled amino acid (in dpm) was then determined for each of the 15 cultures, where the sample average was calculated to be 7771 dpm with a standard deviation of 1009.94 dpm. Suppose that it is known that the mean rate of uptake for cultures without nitrates is 8000 dpm. Do the data suggest that the addition of nitrates results in a decrease in the mean rate of uptake