A popular Italian eatery has had a dispute among the wait staff regarding the amount of tips waiters receive on the lunch shiftand on the dinner shift. Before making any adjustments in schedules or other policies, the restaurant manager wants toestimate the difference in the average tips eamed by waiters on the lunch schedule and on the dinner schedule. To do this,she randomly selected 60 tip reports for lunch servers over the past year and 50 tip reports from dinner servers. The resultsgiven below were observed. Assuming equal population variances, develop and interpret an 80% confidence interval estimatefor the difference between the population mean tips earned by lunch servers and by dinner servers.Mean TipsSt. Dev. TipsLunch$64.40$11.90The mean tips earnedDinner$101.90$13.02Let sample 1 be the sample from the lunch servers and let sample 2 be the sample from the dinner servers.The 80% confidence interval is(Round to two decimal places as needed.)40.57 S (H₁-H₂) =34.43.the valueDAHAthe same during the lunch and dinner shifts, because the confidence interval

Lunch:Sample size Sample mean Sample standard deviation Dinner:Sample size Sample mean Sample…

Answered: A popular Italian eatery has had a…

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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USA TODAY (October 14, 2016) reported that Americans spend 4.1 hours per weekday checking work email. This was an estimate based on a survey of 1,004 white-collar workers in the United States.
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The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Step 1 of 2: Suppose a sample of 281 tenth graders is drawn. Of the students sampled, 56 read at or below the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Step 2 of 2: Suppose a sample of 310 tenth graders is drawn. Of the students sampled, 46 read at or below the eighth grade level. Using the data, construct the 85% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level. Round your answers to three decimal places.

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