Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 250 times and got 109 heads. We wish to find how significant is this evidence against equal probabilities. a. What is the sample proportion of heads? Round to 3 decimal places. b. 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? Ho: p = 0.5 %3D Ho: p = 0.5 * 0.5 Но: р * Но: р3D 0.5 O Ho: p = 0.5 Họ: p < 0.5 О Но: р 3D 0.5 Но: р > 0.5 c. Compute the z test statistic. Z = Round to 2 decimal places.

Your company makes 2000 sports bikes. The probability that a sport bike passes inspection is 92% 5. What is the variable? sample space = 2000 7. What is the probability that exactly 1840 will pass inspection? 8. What is the probability that at most 1840 will pass inspection? 9. What is the probability at least 1840 will pass inspection? 10. What is the probability that between 1840 and 1850 will pass inspection? dec dec dec dec % % % %

Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 300 times and got 122 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 = 0.5H0: p ≠ 0.5 H0: p = 0.5H0: p > 0.5 H0: p = 0.5H0: p < 0.5 H0: p ≠ 0.5H0: p = 0.5 Compute the z test statistic.z =  Round to 2 places.

Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the respondents, 2346 said they are willing to donate organs after death. In this survey conducted for Donate Life America, 100 adults were surveyed in each state and the District of Columbia, and results were weighted to account for the different state population sizes.  a. What percentage of respondents said that they are willing to donate organs after death? b. Based on the poll results, what is the probability of randomly selecting an adult who is willing to donate organs after death? c. What term is used to describe the sampling method of randomly selecting 100 adults from each state and the District of Columbia?