Archie is fed up with waiting in line at his local post office, and plans to contact his congresswoman Archie knows that his complaint will not be well receivedwithout data to back It up. So to improve his case, over the next few months Archie records the waiting time for a selection of 23 post office visits made by himand other customers. These walting times (in minutes) are summarized in the following frequency distribution.Walting time(in minutes)FrequencyO to 62.7 to 136.14 to 2021 to 279.28 to 34Based on the frequency distribution, using the midpoint of each data class, estimate the mean waiting time for the data Archie collected. For your intermediatecomputations, use four or more decimal places, and round your answer to one decimal place.

Calculate Mean from the following grouped data Class Frequency 0 - 6 2 7 - 13 9 14 - 20 5…

Answered: Archie is fed up with waiting in line…

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 want to see if it makes a difference which lane to be inwhen there is traffic. You randomly observe 296 cars as theypass by on the four lane freeway. The results are displayed inthe table below. Use a level of significance of a = 0.10.a. Complete the rest of the table by filling in theexpected frequencies:Frequency of Cars in Each LaneOutcome Frequency Expected FrequencyLane 173Lane 2Lane 3Lane 4597985
Construct the 90 % confidence interval for the difference −μ1μ2 when =x1479.30 , =x2323.56 , =s145.04 , =s222.40 , =n19 , and =n217 . Use tables to find the critical value and round the answers to at least two decimal places. A 90% confidence interval for the difference in the population means is
Q For the data given : 84 80 81 62 84 74 67 90 44 40 80 9664 7174 4175 78 57 52 65 44 54 67 70 92 76 82 85 80.Construct less then cumulative frequency table using k36, the less then cumulative frequency result will be: *
It’s number 17 please I need help making the frequency table and finding the ages of the most common winners
Use the frequency histogram to complete the following parts. (a) Determine the number of classes. (b) Estimate the greatest and least frequencies. (c) Determine the class width. (d) Describe any patterns with the data. Frequency 300- 200- 100- 0- Employee Salaries T T T 32 37 42 47 52 57 62 Salary (in thousands of dollars)
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year. 1 1 3 0 0 63 Use this information to answer parts a through c. D a. Find and interpret the range. The range is days.
Identify the lower class limits, upper class limits, class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary.complete a-f a. Identify the lower class limits. b. Identify the upper class limits. c. Identify the class width. d. Identify the class midpoints. e. Identify the class boundaries. f. Identify the number of individuals included in the summary.
Suppose a study of speeding violations and drivers who use cell phones produced the following fictional data: Speeding violation in thelast year No speeding violation in the last year Total Uses cell phone while driving 25 280 305 Does not use cell phone while driving 45 405 450 Total 70 685 755 Calculate P(Driver had no violation in the last year AND was a cell phone user). Round your answer to four decimal places.
Use the frequency histogram to complete the following parts. (a) Determine the number of classes. (b) Estimate the greatest and least frequencies. (c) Determine the class width. (d) Describe any patterns with the data. (a) There are (Type a whole number.) classes. (b) The least frequency is about (Round to the nearest whole number as needed.) The greatest frequency is about. (Round to the nearest whole number as needed.) (c) The class width is $0. (Type an integer or a decimal. Do not round.) (d) What pattern does the histogram show? A. About half of the employees' salaries are between $40,000 and $49,000. B. About half of the employees' salaries are between $50,000 and $59,000. C. Most employees make less than $34,000 or more than $60,000. D. Less than half of the employees make between $35,000 and $59,000. Frequency 300- 200- 100- 0- Employee Salaries 32 37 42 47 52 57 62 Salary (in thousands of dollars) O
A population data set produced the following information. N = 250. Ex = 9980, Ey = 1455, xy = 85,040 E2 = 486,820, and = 136,745 Find the values of oe and p?. Round oe to four decimal places and p? to three decimal places. i
I'm not sure where is my mistake solving this problem. I have revised my calculation three times already and I'm not sure if the step to solve it is wrong or if it is my rounding the problem. Thank you for your help
Thirty students in the School of Business were asked what their majors were. The following represents their responses (M = Management; A = Accounting; E = Economics; O = Others). A M M A M M E M A E E M A E E E A M A A M а. Construct a frequency distribution. , b. Construct a bar chart Please upload a file containing all of your work and diagrams.

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