Question

When operating normally, a manufacturing process produces tablets for which the mean weight of the active ingredient is 5 grams, and the standard deviation is 0.025 gram. For a random sample of 10 tablets, the following weights of active ingredient (in grams) were found:
7 4+(1/5) 10 5+(1/6) 5+(1/3) 4.69 4.95 4.98 4.52 4.63
(Round the numbers to two digit decimals)
Manufacturing department claims that the population mean weight of active ingredient per tablet is 5 grams. Based on this information;
a) State your hypothesis H0 and H1.
b) State the decision rule (exactly as in the book), sample statistics, table value and test statistic (with the exact formula) in the same order as in the extra-solved examples on hypothesis testing.
c) Test, at the 10% significance level, the null hypothesis

Answer 1