Ages of Gamblers The mean age of a sample of 20 people who were playing the slot machines is 51.4 years, and the standard deviation is 6.8 years. The mean age of a sample of 33 people who were playing roulette is 55.2 with a standard deviation of 3.2 years. Can it be concluded at =0.10 that the mean age of those playing the slot machines is less than those playing roulette? Use 1 for the mean age of those playing slot machines. Assume the variables are normally distributed and the variances are unequal.

h0:

h1;

Is the test one tailed or two tailed?

critical value(s)

t=

reject or do not reject the null hypothesis

is there enough evidence to support the claim