Answer Happy

Q7. [2+3+3] Using traditional methods, it takes 9.5 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 15 students and observed that they had a mean of 10.0 hours with a standard deviation of 1.6. A level of significance of 0.1 will be used to determine if the technique performs differently than the traditional method. (a) Is it a left tailed or a right tailed or a two tailed test? (b) Compute the test statistic. (c) Make the decision to reject or fail to reject the null hypothesis. Q8. [2+3+3] A publisher reports that 30% of their readers own a laptop. A marketing exccutive wants to test the claim that the percentage is actually. different from the reported percentage. A random sample of 110 found that 20% of the readers owned a laptop. A level of significance of 0.05 will be used. (a) Is it a left tailed or a right tailed or a two tailed test? (b) Compute the test statistic. (c) Make the decision to reject or fail to reject the null hypothesis.