1.In a survey of 300 IT professionals, it is found that 155 say that they have fallen asleep at work. 400 government professionals are also surveyed, with 256 responding that they have fallen asleep at work. You would like to test the following hypotheses using . H0: HA: Calculate the test statistic using a pooled value of = 0.5871. Answer to three decimal places.

2.If you were to calculate a confidence interval to correspond with the test in the previous question, which confidence level would you use? Choose the correct answer below. 80% confidence

90% confidence

95% confidence

98% confidence

99% confidence

99.8% confidence

99.9% confidence