The manager of a coffee shop is trying to determine if drive-through customers buy fewer items than customerswho come into the shop. The manager randomly samples both populations and calculates the proportion ofcustomers in each that buy three or more items. The results of the data collected are shown below.What are the population parameters?✓ PickThe difference in the sample sizesThe difference in the two sample meansThe proportion of all customers in each category that buy three or more itemsThe proportion of customers in the sample in each category that buy three or more items -shopAlternative hypothesis: Ha: Pdrive-through Pick Pin-shopSuccObsePropConfiZ-scorep-value-1.8050.0359Should Ho be rejected or does Ho fail to be rejected? PickWhat conclusion can be drawn from the data?Pick✓evidence exists to support the claim that drive-through customers buy fewer items than in-shopcustomers.

Answered: The manager of a coffee shop is trying…

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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a survey was given to 18 students. one question asked about the one-way distance the student had to travel to attend college. the results, in miles, are shown in the following table. use the median procedure for finding quartiles to find the first, second and third quartiles for the data.
Marvel movies - Kylie is a huge fan of Marvel movies. She finds an online poll that asks, "What is the best movie of the Marvel Cinematic Universe?" and saves the data. For a class project she wants to determine if the distribution of her classmates' favorite Marvel movies is different from the one published in the online poll. She surveys the 215 students in her statistics class. The table below contains the percentages reported by the online poll and the observed counts from her classmates. Report all calculated answers to 4 decimal places. Poll Observed Movie Percentage Count Captain America: The Winter Soldier 18.1% 34 Guardians of the Galaxy 14% 34 The Avengers 13.9% 32 Captain America: Civil War 11.4% 24 Iron Man 7.5% 20 Doctor Strange 3.7% 10 Other Marvel movie 31.4% 61
The table below shows the grades of the 20 students of a martial arts class. There are three grades: satisfactory(S), unsatisfactory(U), and incomplete(I). Question: Create a frequency table. You MUST include the “total” row and show the column sum when appropriate. Plus, you MUST include five columns with these headings: grade, f, %, c.f, and c.%. Note that all percentages MUST be with ONE decimal digit.
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The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples. Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84 Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87 z-score for midterm: 1.857 z-score for final: 1.181 Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade? Select the correct answer below: A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual. B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual. C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more…
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