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- 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 different for men who wear a tie? Wait times for 15 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 13, 13, 14, 13, 17, 16, 17, 17, 13, 14, 15, 14, 16, 15, 14 What can be concluded at the the a = 0.10 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: ?v Select an answer v H1: 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 the population mean is not significantly different from 15 at a = 0.10, so there is statistically insignificant…Please solve attached. Thank you in advanceAccording to a recent Gallup poll, about 5% of Americans polled say they are vegetarian (abstaining from eating meat). This number has not changed since the poll done in 2012. If I ask a random group of 750 Americans if they vegetarian or not, what is the chance that 45 or more will say that they are vegetarian? 1. Use the binomial distribution on Geogebra (or your calculator) to solve this problem, show your work on paper (what you are putting into technology) 2. Use the normal approximation to the binomial to solve this same problem. Show your work on paper (what you are putting into technology)
- twinti4percentage may be now, so a of 250 of last year's freshmen 4. 78% of all to in Fall 2015. You think that the a and tind that 84% returned, www.csun.edu/counts/one_year_continuation_rate-plip a. What is p? _ What is the number of successes? What is n? b. Write the hypotheses: Circle the best definition of p. the proportion of all of last year's freshmen who returned the proportion of all 2014 CSUN freshmen who returned the proportion of all CSUN freshmen among the 250 who returned C. Assuming that Ho is true, the sampling distribution of p has a mean of Use the formula to compute the SE of the sampling distribution of p. Complete this sketch of the sampling distribution of p. Put a scale on the horizontal axis. Then locate the result from the sample and shade in area representing the p-value. (Is the area representing the p-value on one side or two sides?) Use StatCrunch to find the p-value for this situation. e. Is there statistically significant evidence that the percentage is…Suzette does an experiment where she collects date from 5 women snd obtains the scores: 4, 4, 5, 2, 5. She hypothesizes that the population mean for the population from which these scores are drawn is 3. She wants to test whether this hypothesis is true. What is the alternative hypothesis she is testing?
- The accompanying table describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children. Use the range rule of thumb to determine whether 1 girl in 10 births is a significantly low number of girls. Click the icon to view the table. Use the range rule of thumb to identify a range of values that are not significant. The maximum value in this range is girls. (Round to one decimal place as needed.) *** Probability Distribution for x Number of Girls x 0 1 2 3 4 5 6 7 8 9 10 P(x) 0.002 0.012 0.043 0.115 0.203 0.234 0.198 0.115 0.038 0.011 0.029 D - XIn a recent survey, approximately 90% of U.S. adults own a cell phone. Let's assume this can be modeled as a binomial distribution. In a group of 20 randomly selected adults, what is the standard deviation of the number of adults you would expect to own a cell phone? TTT Arial v T RBC 3 (12pt) Click Save and Submit to save and submit. Click Save All Answers to save all answers.Let p be the population proportion for the following condition. Find the point estimates for p and q. Of 952 children surveyed, 108 plan to join the armed forces in the future. Part 1 The point estimate for p, p^, is ___ The point estimate for? q,q^, is ___
- A 25 https://www.mathxl.com/Student/PlayerHomework.aspx?homeworkld3595780699&questionld31&flushed=false&cld%36482 4SP2021 General Statistics (MAT-112-01A) Homework: Chapter 2 (Sections 2.4-2.5) Score: 0 of 4 pts 1 of 11 (0 complete) ▼ 2.4.15 The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range, mean, variance, and standard deviation of the sample data set. 12, 20, 23, 13, 13, 18, 21, 17, 15, 15 O The range is- (Simplify your answer.) Enter your answer in the answer box and then click Check Answer Clear ll parts remainingA multiple-choice test has four questions, each with five choices for the answer Only one of the choices is correct. You randomly guess the answer to each question. Use the Binomial table to find the following 1. What is the probability that you answer all the questions correctiy? Answer is{ 2. What is the probability that you answer only one question correct? Answer is 3. The mean of the distribution and its standard deviation is 0.80 0.64 Next page CS Scanned with CamScanner
