Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 300 times and got 126 heads. We wish to find how significant is this evidence against equal probabilities. What is the sample proportion of heads? Round to 3 places. Heads do not make up half of the sample. Is this sample evidence that the probabilities
Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 300 times and got 126 heads. We wish to find how significant is this evidence against equal probabilities. What is the sample proportion of heads? Round to 3 places. Heads do not make up half of the sample. Is this sample evidence that the probabilities
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 300 times and got 126 heads. We wish to find how significant is this evidence against equal probabilities.
- What is the sample proportion of heads?
Round to 3 places. - Heads do not make up half of the sample. Is this sample evidence that the probabilities of heads and tails are different?
Take p to be the probability of getting heads in a spin of a penny. Which hypotheses do we want to test?
- H0: p = 0.5
H0: p < 0.5 - H0: p = 0.5
H0: p > 0.5 - H0: p = 0.5
H0: p ≠ 0.5 - H0: p ≠ 0.5
H0: p = 0.5
- H0: p = 0.5
- Compute the z test statistic.
z = Round to 2 places.
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