Construct a situation for which you can test null and alternative hypotheses for a population proportion. For example, you could see whether you can flip a coin in a manner so as to bias it in favor of heads. Or you could conduct an ESP test in which you ask someone to guess the suits in a deck of cards. (To do the latter experiment properly, you must replace the card and shuffle each time so you don’t change the probability of each suit by having only a partial deck, and you must separate the “sender” and “receiver” to rule out normal communication.) Collect data for a sample of at least size 100. Carry out the test. Make sure you follow the four steps given in Section 22.2, and be explicit about your hypotheses, your decision and the reasoning behind your decision.
Answer to relevant QuestionsFind two news stories reporting on the results of statistical studies with the following characteristics. First, find one that reports on a study that failed to find a relationship. Next, find one that reports on a study ...Refer to Example 13.2, in which we tested whether there was a relationship between gender and driving after drinking alcohol. Remember that the Supreme Court used the data to determine whether a law was justified. The law ...Construct an approximate 95% confidence interval for the population difference in mean fat loss. Consider the two different methods for presenting results: (1) the p-value and conclusion from the hypothesis test or (2) the ...Explain the difference between statistical significance and significance as used in everyday language. Explain why it is not wise to accept a null hypothesis.
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