You toss a coin four times and get no heads. The p-value for the null hypothesis...

Question

Question

You toss a coin four times and get no heads. The p-value for the null hypothesis that the coin is fair is: Question options:

10%

25%

5%

6.25%

Answer 1

Answer #1

null hypothesis : coin is fair

therefore,

p-value = p(0 heads in 4 toss) = p(all tails)

= P(tails in fair coin)^4

= 0.5^4 {in fair coin p(tails) = 0.5}

= 0.625

= 6.25%

therefore p-value for null hypothesis that coin is fair = 6.25%

Answer 2

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