Test bank and solution of business statictics by donnely (2)

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Test bank and solution of business statictics by donnely (2)

CHAPTER 2 Displaying Descriptive Statistics2.1a)2 = 128 > 100 therefore use 7 classes.b)2’ =512 > 300 therefore use 9 classes.c)21' = 1.024 > 1.000 th

Test bank and solution of business statictics by donnely (2)herefore use 10 classes.d)2 ! = 2.048 > 2,000 therefore use 11 classes.2.2 26 = 64 > 50 therefore use 6 classes.Estimated Class Width = -■-■■■ - = 9.7

= 106a)16-25. 26-35. 36-45. 46-55. 56-65. 66-75b)16 to under 26. 26 to under 36. 36 to under 46.46 to under 56. 56 to under 66. 66 to under 762.3Freq Test bank and solution of business statictics by donnely (2)

uencyRelativeCumulative RelativeNumberFrequencyFrequency162500.250260.2500.500350 2080.708440 1670.875530.1251.00Total241.002.4 2s = 32 > 30 therefore

Test bank and solution of business statictics by donnely (2)

CHAPTER 2 Displaying Descriptive Statistics2.1a)2 = 128 > 100 therefore use 7 classes.b)2’ =512 > 300 therefore use 9 classes.c)21' = 1.024 > 1.000 th

Test bank and solution of business statictics by donnely (2)han 4320.0671.0Total301.002.5 26 = 64 > 36 therefore use 6 classes.

CHAPTER 2 Displaying Descriptive Statistics2.1a)2 = 128 > 100 therefore use 7 classes.b)2’ =512 > 300 therefore use 9 classes.c)21' = 1.024 > 1.000 th