B67) If, as a result of a hypothesis test, you reject the null hypothesis when it is false, then you have committed
C68) In testing for the differences between the means of two independent populations, you assumethat the two populations each follow a ________ distribution.
69) True or False: The sample size in each independent sample must be the same if we are to test for differences between the means of two independent populations.
A real estate company is interested in testing whether the mean time that families in Gotham have been living in their current homes is less than families in Metropolis. Assume that the two population variances are equal. A random sample of 100 families from Gotham and a random sample of 150 families in Metropolis yield the following data on length of residence in current homes.Gotham: G= 35 months, SG2= 900 Metropolis: M= 50 months, SM2= 1,05070) Which of the following represents the relevant hypotheses tested by the real estate company?
A71) What is the estimated standard error of the difference between the two sample means?