Question: 21. In Chapter 11, problem 22 presented data comparing the accuracy of Olympic marksmen for shots fired during heartbeat compared to shots fired between heartbeat.

21. In Chapter 11, problem 22 presented data comparing the accuracy of Olympic marksmen for shots fired during heartbeat compared to shots fired between heartbeat. The data are presented again here.

During Between Participant Heartbeats Heartbeats A 93 98 B 90 94 C 95 96 D 92 91 E 95 97 F 91 97 G 92 95 H 93 97 Use the data to estimate how much effect the vibration from a heartbeat affects a marksman’s score.

Make a point estimate and an 80% cofidence interval estimate of the population mean difference?

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