Chapter 8 Hypothesis Testing and Types of Errors Business Statistics
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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.
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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