1. Read the t statistic from the t distribution table and choose the correct answer.For a one-tailed test (lower tail), using a sample size of 14, and at the 5% level of significance, t =

a.1.761.

b.1.771.

c.-1.762.

d.-1.771.

2. The average hourly wage of computer programmers with 2 years of experience has been $21.80. Because of high demand for computer programmers, it is believed there has been a significant increase in the average hourly wage of computer programmers. To test whether or not there has been an increase, the correct hypotheses to be tested are

a.H₀: = 21.80 H_a: 21.80.

b.H₀: 21.80 H_a: > 21.80.

c.H₀: > 21.80 H_a: 21.80.

d.H₀: < 21.80 H_a: 21.80.