QUESTION 9

The average FEV (ForcedExpiratoryVolume) for adult males 20 to 49 years of age is know to be 3.0 liters

You randomly sample 60 male construction workers exposed to high levels of construction dust in that same age range and wish to determine if the mean FEV for construction workers exposed to dust is different than the general male population of the same age

Using the data set PulmonaryFuctionData.sav(or PulmonaryFuctionData.xlsxyou wish to test this hypothesis (alpha = 0.05)

Your null hypothesis is

		u all males = u construction workers
		u all males >= u construction workers
		u all males =/= u construction workers
		u all males is greaterthan u construction workers

QUESTION 10

Using the data set PulmonaryFuctionData.sav(or PulmonaryFuctionData.xlsxyou wish to test the above hypothesis (alpha = 0.05)

Your alternative hypothesis is

		u all males = u construction workers
		u all males >= u construction workers
		u all males =/= u construction workers
		u all males is greaterthan u construction workers

QUESTION 11

Using the FEV dataabove

Based on the sample size N=60 what critical value of t you would need toexceed to reject the null hypothesis with alpha error = 0.05?

QUESTION 12

Using the FEV data above

Using SPSS, Excel, or R calculate the value of t for the single sample t test (Xbar construction workers vs other males)

Enter a POSITIVE value for the calculated value of t?