Question

You are hired by a company to do a test to determine whats the best type of keyboard. You are given two different designs (Keyboard A and Keyboard B). Using two groups of people, you determine the number of words typed per minute by one group using keyboard A and the other group using keyboard B. Do the appropriate analysis to determine if Keyboard A produces more words typed per minute.

Keyword A Keyboard B

54 47

62 51

45 54

59 62

78 44

64 51

69 48

72 65

50 42

73 44

75 71

67 68

59 47

71 55

45 57

67 53

69

71

Independent Sample T-Test

WPM t df p

3.132 32 0.002

Note: For all tests, the alternative hypothesis specifies that group A is greater than group B.

Note: Student's t-test

Keyboard Means

Keyboard A 63.89

Keyboard B 53.69

Answer 1

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