According to the Mayo Clinic, a fasting blood sugar of 100 mg/dL is considered to be normal. A doctor claims that his patients have a lower fasting sugar due to a new drug that he prescribes. The data is shown to the left. Test the doctor's claim at 0.05 level of significance. Is the drug working? What might be some issues with this dataset?
Since p-value = 1.06928E-23 < 0.05 i.e. H0 can be rejected and hence we can say that there is enough evidence to conclude that doctor's patients have a lower fasting sugar due to a new drug that he prescribed and hence drug is working.
Some problems may be:
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