ALL ABOUT STATS

Instruction: Answer the following scenario using the six steps discussed in the module. Show your solutions. 1. A random sample of 8 cigarettes of a certain brand has an average nicotine content of 4.2 mg and a standard deviation of 1.4 mg. Is this in line with the manufacturer's claim that the average nicotine content does not exceed 3.5 mg? Use a 0.01 level of significance. Step 1: Step 2: Step 3: Step 4: Step 5: Step 6:2. Last year, the employees of the city sanitation department donated an average of $8.00 to the volunteer rescue squad. Test the hypothe- sis at 0.10 level of significance that the average contribution this year is still $8.00 if a random sample of 12 employees showed an average donation of $ 8.90 with a standard deviation of $1.75. Step 1: Step 2: Step 3: Step 4: Step 5: Step 6