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Statistics Testing Difference between heartbeat using Paired t–test

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Test whether the significant difference using Paired t–test. - At the Olympic level of competition, even the smallest factors can make the difference between winning and losing. For example,

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									              Sub: Statistics                                                                                   Topic:Testing



              Question:

              Test whether the significant difference using Paired t–test.

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              At the Olympic level of competition, even the smallest factors can make the difference between
              winning and losing. For example, Pelton (1983) has shown that Olympic marksmen shoot much
              well if they fire between heartbeats, rather than squeezing the trigger during a heartbeat. The
              small vibration caused by a heartbeat seems to be sufficient to affect the marks-man’s aim. The
              following hypothetical data demonstrate this phenomenon. A sample of n = 6 Olympic
              marksmen fires a series of rounds while a researcher records heartbeats. For each marksman, a
              score is recorded for shots fired during heartbeats and for shots fired between heartbeats. Do
              the data indicate a significant difference? Test with ∝ = .05.


                                                     During                        Between
                           Participant             Heartbeats                     Heartbeats

                                 A                      93                              98
                                 B                      90                              94
                                 C                      95                              96
                                 D                      92                              91
								
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