Flip a coin 50 times. Consider this a random sample of size 50. Record the outco

Question

Flip a coin 50 times. Consider this a random sample of size 50. Record the outcome of each of the 50 flips in order from 1 to 50, using the Tally Sheet accompanying the Final Exam. Tally the number of heads and the number of tails and calculate the proportion of heads in your sample.

Forget that you know that a fair coin should come up 50% heads and 50% tails in the long run. Construct a 95% Confidence interval for proportion of heads you would expect to find in the population, based on your sample.

**SEE TALLY SHEET(TABLE) BELOW**

Flip H or T Flip H or T 1 31 2 32 3 33 4 34 5 35 6 36 7 37 8 38 9 39 10 40 11 41 12 42 13 43 14 44 15 45 16 46 17 47 18 48 19 49 20 50 21 51 22 52 23 53 24 54 25 55 26 56 27 57 28 58 29 59 30 60

Explanation / Answer

solution:

Excel formula:

Flip H or T 1 H 2 T 3 H 4 T 5 T 6 H 7 H 8 T 9 T 10 H 11 T 12 T 13 T 14 H 15 T 16 T 17 T 18 T 19 T 20 T 21 T 22 H 23 T 24 H 25 T 26 T 27 H 28 T 29 H 30 H 31 H 32 T 33 T 34 T 35 H 36 T 37 H 38 H 39 H 40 T 41 H 42 T 43 H 44 T 45 H 46 T 47 T 48 T 49 T 50 T

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