Description
Solve the following problems.
- Why is randomization important in an experiment? Give an example.
- Select an experiment of interest to you. State the problem, then select the response variable,and choose the factors, levels, and ranges.
- Consider the computer output shown below.
- Fill in the missing values in the output. What conclusion would you draw?
- Is this a one-sided or two-sided test?
- Use the output and the normal table to find a 99% Confidence Interval of the populationmean.
- What is the P-value if the alternative hypothesis is H1: µ1 > 30?
- The breaking strength of a fiber is required to be at least 150 psi. Past experience hasindicated that the standard deviation of breaking strength is σ = 3 psi. A random sample of four specimens is tested, and the results are y1 = 145,y2 = 153,y3 = 150,y4 = 147.
- State the hypotheses that you think should be tested in this experiment. Test thesehypotheses using α = 0.
- What is the test statistic?
- What are the critical values?
1
- What is the P-value?
- What are your conclusions?
- Find a 95% Confidence Interval of the population mean breaking strength.
