A manufacturer claims that the average nicotine content of a certain kind of ********* is 0.29
milligram. Suspecting that this figure is too low, a government protection service takes a random sample
of 25 of these *********s from different production plants and found that their nicotine content has a
mean of 0.33 milligram with a standard deviation of 0.15 milligram. Use 0.05 level of significance.
Pair Male Female
1 4,300 3,800
2 6,500 6,600
3 5,400 4,800
4 3,500 3,500
5 8,500 7,600
6 2,800 3,000
7 4,500 2,000
8 6,200 5,100
9 3,400 3,200
10 4,200 3,500
milligram. Suspecting that this figure is too low, a government protection service takes a random sample
of 25 of these *********s from different production plants and found that their nicotine content has a
mean of 0.33 milligram with a standard deviation of 0.15 milligram. Use 0.05 level of significance.
Pair Male Female
1 4,300 3,800
2 6,500 6,600
3 5,400 4,800
4 3,500 3,500
5 8,500 7,600
6 2,800 3,000
7 4,500 2,000
8 6,200 5,100
9 3,400 3,200
10 4,200 3,500