Normal distribution What is wrong with the following statement? "Because the digits 0, 1, 2..., 9 are the normal results of lottery draws, these randomly selected numbers have a normal distribution"
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- The average wait time to get seated at a popular restaurant in the city on a Friday night is 7 minutes. Is the mean wait time greater for men who wear a tie? Wait times for 12 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 9, 5, 5, 7, 8, 5, 7, 7, 9, 5, 6, 9 What can be concluded at the the a = 0.10 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: P Select an answer H1: pv Select an answer v c. The test statistic (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is >v f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that .. O The data suggest the populaton mean is significantly more than 7 at a = 0.10, so there is statistically significant evidence to conclude that the population…Pls help me with these 2 part: Researchers at a reputable university and a reputable health organization claim that approximately 73% % of people believe "tranquilizers work very well to make a person more calm and relaxed." Of the next 85 people interviewed, what is the probability that (a) at least 51 are of this opinion? (b) at most 59 are of this opinion?3
- What is the missing probability? What is the median of this distribution?Casino A casino knows that people play the slot ma-chines in hopes of hitting the jackpot but that most of them lose their dollar. Suppose a certain machine paysout an average of $0.92, with a standard deviation of$120.a) Why is the standard deviation so large?b) If you play 5 times, what are the mean and standarddeviation of the casino’s profit?c) If gamblers play this machine 1000 times in a day,what are the mean and standard deviation of thecasino’s profit?d) Is the casino likely to be profitable? Explain.The average wait time to get seated at a popular restaurant in the city on a Friday night is 15 minutes. Is the mean wait time greater for men who wear a tie? Wait times for 13 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 17, 16, 14, 16, 14, 15, 16, 15, 14, 14, 13, 15, 17 What can be concluded at the the a = 0.05 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? vSelect an answer v H: ? v Select an answer v c. The test statistic ? v: (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean wait time for men who wear a tie is not significantly more than 15 at a = 0.05, so there is…
