Chapter 8 Hypothesis Testing and Types of Errors Business Statistics
FOR MORE CLASSES VISIT www . tutorialoutlet . com
circumference is 2 nr .) d . area : This function takes as its parameter a number that represents the radius of the circle and returns the circle ‘ s area . ( If r is the radius , the area is 11r2 .) Assume that n = 3.1416 .
------------------------------------------------------------------------------------
Chapter 8 Hypothesis Testing and Types of Errors Business Statistics
FOR MORE CLASSES VISIT www . tutorialoutlet . com
Chapter 8 Hypothesis Testing and Types of Errors Business Statistics January 4 , 2017 ( Business Statistics ) Chapter 8 January 4 , 2017 1 / 48 1 Introduction to Hypothesis Testing 2 Hypothesis Testing for p 3 Hypothesis Testing for µ 4 Independent Samples : Hypothesis Testing for µ 1 − µ 2 5 Dependent Samples : Hypothesis Testing for µ diff 6 Type I and Type II Errors ( Business Statistics ) Chapter 8 January 4 , 2017 2 / 48 Introduction to Hypothesis Testing Introduction to Hypothesis Testing As we saw in the previous chapter , confidence intervals estimate a population mean or proportion by giving a range it likely falls in using a random sample of data . Hypothesis testing has the same goal as a confidence interval , informing us about a population mean or proportion , but with a different approach . A hypothesis test allows us to come to a conclusion about the mean or proportion . ( Business Statistics ) Chapter 8 January 4 , 2017 3 / 48 Introduction to Hypothesis Testing Introduction to Hypothesis Testing Let ‘ s look at some examples of when hypothesis testing would be used . 1 After the recession , the fees charged by banks for late credit card payments have increased . 2 The industry that promotes compact fluorescent light bulbs claims the