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Statistics

Hypothesis test for single proportion.

A coin was flipped 60 times and came up heads 38 times.

a. At the 0.10 level of significance, is the coin biased toward heads? describe your decision rule and calculations.

b. find out a p-value and interpret it.

60 -38 = 0.633 Z.10 = 1.281

P (less than or equal to 2.576) = 0.9950

1 - 0.9950 = 0.00499

 Confidence interval - proportion 99% confidence level 0.633333333 proportion 60 n 2.576 z 0.160 half-width 0.794 upper confidence limit 0.473 lower confidence limit

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M920300

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