The measurements of the number of cigarettes smoked per day by a group of ten smokers are as follows: 5, 10, 3, 4, 5, 8, 20, 4, 1, 10. Carry out the hypothesis test H0 : µ= 10 vs H1 : µ < 10, assuming that the data come from a random sample from a normal population with σ = 1.2. Use a 5% significance level. 227. H0 is accepted. 228. H0 is rejected

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