A company keeps extensive records on its new salespeople on the premise that sales should increase with experience. A random sample seven new salespeople produced the data on experience and sales shown in the table. Monthly Sales y ($ thousands) Months on Job 2.4 4 7.0 11.3 12 15.0 1 .8 3.7 12.0 = 5.8571, and y = 7.4571. Write the estimate of linear Summary statistics yield SSXX = 94.8571, SSxy = 124.7571, SSyy = 176.5171, regression line and write the estimate of the slope and intercept separately first.
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 4 images
