Discuss the below:
1. Define the null hypothesis. If the null hypothesis is rejected then?
2. The level of significance is the?
3. Type II error is committed when?
4. The level of significance in hypothesis testing is the probability of?
5. If n=16, mean = 75.76, s = 8.2466 H o: mean >80 H a: mean <80, the standardized test statistic equals?
6. Read the Z statistic from the normal distribution table:
a. A one-tailed test(upper tail) at 87.7% confidence; Z
b. A two-tailed test at 98.4% confidence; Z