Generate a sample of 2500 random numbers that are Weibull distributed between 90 and 160

Weibull Distribution

Generate a sample of 2500 random numbers that are Weibull distributed between 90 and 160 (20 points).  Plot the histogram of 2500 numbers with bin size of 10(20 points).  Show work and formula used. 

Question 3 – Confidence Intervals (8 x 5 = 40 points)

3.1 – 3.4.  Solve Chapter 4 – Problem 10.

3.5.  The average miles from work by gender.

Question 4 – Statistics Prediction

4.1. Solve Chapter 4 – Problem 13.  (10 points)

4.2.  Recalculate when sample point estimate for market share is 19.8%.  (10 points)

4.3.  Explain findings in both cases using a forest plot.You can make a forest plot in excel using line plot.  Pay attention to what information is important on the forest plot.  (20 points)

Question 5 – T-test

5.1.  Solve Chapter 4 – Problem 28.  (20 points) 

5.2.  Plot the theoretical frequency distribution of spending in each age group.  Assume normal distribution. (20 points)