1) .A research study measured the pulse rates of 57 women and found to have a mean pulse rate of 70.4211 with a standard deviation of 9.9480. Researchers want to know if the mean pulse rate for all college women is different from the standard of 72. Use a 5% level of significance.
2) An industry representative tries to argue that the Philippine Commercial Perry aren't really too old by making this claim: "The mean age of Philippine Commercial Perry is only about 10 years." Apply the hypothesis testing procedure to test the claim of the navigation industry representative at 5% significance level.
3) The Engineering Department of Jonas Motors, a jeepney manufacturer claims that the fuel consumption rate of one model is equal to 14 km/liter. The advertising department wants to test this claim to see if the announced figure should be higher or lower than 14 km/liter. Test the claim of the engineering department by using a 0.05 level of significance.
4) Mariners, a manufacturer of fishing rods, has developed a new product that the company claims have a mean breaking strength of 8 kilograms with a standard deviation of 0.5 kilogram. If a random sample of 50 rods is tested and found to have a mean breaking strength of 7.8 kilograms. Test the claim of the manufacturer at a .01 level of significance.
5) A concerned citizen group claims that 45% of the people in the first barangay support making beers illegal. You decide to test this claim and ask a random sample of 200 people, 49% support this bill. At 0.05 significance level, is there enough evidence to support this claim?
(Use the steps in hypothesis testing with graph)
2) An industry representative tries to argue that the Philippine Commercial Perry aren't really too old by making this claim: "The mean age of Philippine Commercial Perry is only about 10 years." Apply the hypothesis testing procedure to test the claim of the navigation industry representative at 5% significance level.
3) The Engineering Department of Jonas Motors, a jeepney manufacturer claims that the fuel consumption rate of one model is equal to 14 km/liter. The advertising department wants to test this claim to see if the announced figure should be higher or lower than 14 km/liter. Test the claim of the engineering department by using a 0.05 level of significance.
4) Mariners, a manufacturer of fishing rods, has developed a new product that the company claims have a mean breaking strength of 8 kilograms with a standard deviation of 0.5 kilogram. If a random sample of 50 rods is tested and found to have a mean breaking strength of 7.8 kilograms. Test the claim of the manufacturer at a .01 level of significance.
5) A concerned citizen group claims that 45% of the people in the first barangay support making beers illegal. You decide to test this claim and ask a random sample of 200 people, 49% support this bill. At 0.05 significance level, is there enough evidence to support this claim?
(Use the steps in hypothesis testing with graph)