To apply the two-sample t procedures, use Option 1 if you have technology that implements that method. Otherwise, use Option 2.Researchers gave 40 index cards to a waitress at an Italian restaurant in New Jersey. Before delivering the bill to each customer, the waitress randomly selected a card and wrote on the bill the same messagethat was printed on the index card. Twenty of the cards had the message "The weather is supposed to be really good tomorrow. I hope you enjoy the day!" Another 20 cards contained the message "Theweather is supposed to be not so good tomorrow. I hope you enjoy the day anyway!" After the customers left, the waitress recorded the amount of the tip (percent of bill) before taxes. Here are the tips forthose receiving the good-weather message.21.0 18.8 20.3 20.9 21.9 23.7 22.8 25.2 22.7 20.825.1 22.3 27.3 21.0 22.5 24.2 21.3 22.3 22.0 23.2The tips for the 20 customers who received the bad-weather message are below.19.3 18.8 16.1 17.1 14.418.0 19.1 19.4 19.2 18.917.1 13.6 17.8 20.4 20.619.0 18.2 23.2 18.4 19.5Give a 95% confidence interval for the difference between the mean percent tips for the two different messages. (Round your answers to two decimal places.)x toX percent

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Answered: To apply the two-sample t procedures,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You may need to use the appropriate technology to answer this question. The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains.† One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for a local newspaper thought that it would be of interest to her readers to conduct a similar study for restaurants located in her city. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The following data show the meal prices ($) obtained for the 24 restaurants sampled. Italian Seafood Steakhouse $13 $15 $24 14 19 18 16 18 22 17 25 24 17 22 21 19 16 23 16 18 26 32 11 34 Use ? = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. State the null and alternative hypotheses. H0: ?Italian = ?Seafood = ?SteakhouseHa:…
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Please answer these questions thanks
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