You have just recorded the waiting times for a random sample of 50 customers who visited Elmo's Pizza Shop. The following table givesthe frequency distribution of waiting times (in minutes) for these customers.Waiting Timef10 to less than 16616 to less than 22 | 1022 to less than 281828 to less than 34834 to less than 40740 to less than 461The mean waiting time, rounded to two decimal places, is:minutes

Calculate Mean from the following grouped data Class Frequency 10 - 16 6 16 - 22 10 22 - 28…

Answered: You have just recorded the waiting…

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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Complete the table and find the mean, median and mode.
D1)
The table below shows the monthly incomes (in thousands) of Mr. Adam. 11 56 43 11 12 11 10 48 23 21 22 28 17 18 60 23 11 25 22 21 17 53 48 47 47 Read the above table and answer the following questions: a. Using the 2" rule, how many classes would you suggest? b. Create a Frequency distribution table from the data above. c. Create a Relative frequency Distribution and show the graph d. Create a Cumulative Relative Frequency distribution and display the graph e. Explain your graphs found in part c, and d in plain english. 21
The following data shows the cost of electricity (in $) during July 2015 for a random sample of 50 one-bedroom apartments in a large city. a.Form a frequency distribution for the above data. b. Find arithmetic mean based on the frequency distribution you developed.
Students in an experimental psychology class did research on depression as a sign of stress. A test was administered to a sample of 30 students.The scores are shown below. 43 51 11 91 77 36 64 37 42 72 54 62 36 75 51 D 72 37 29 39 61 48 63 36 41 21 37 51 47 86 14 To find the 10% trimmed mean of a data set, order the data, delete the lowest 10% of the entries and the highest 10% of the entries, and find the mean of the remaining entries. Complete parts (a) through (c). (a) Find the 10% trimmed mean for the data. The 10% trimmed mean is (Round to the nearest tenth as needed.) (b) Compare the four measures of central tendency, including the midrange. Mean = (Round to the nearest tenth as needed.) Median = Mode = (Use a comma to separate answers as needed.) The midrange is found by the following formula. (Maximum data entry) + (Minimum data entry) Midrange = (Round to the nearest tenth as needed.) (c) What is the benefit of using a trimmed mean versus using a mean found using all data…
the following are the daily salaries of a group of employess daily salary number 300-399 15 400-499 21 500-599 45 600-699 39 700-799 24 800-899 6 total 150 a. Find the mean,median,and mode b. find D3, D6, P60, Q1 and P80
The data below shows time taken (in minutes) for 50 students to travel to their school from home.Time (minutes)23 16 16 17 1218 17 32 11 2711 16 22 18 2021 15 21 17 3432 14 18 21 2922 12 30 27 1627 20 21 14 2817 17 17 20 2613 20 27 26 1718 21 21 36 29 2. Draw a histogram based on your frequency distribution table.3. Give your comment about the distribution of the data based on your histogram.
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. Actress (years) 26 Actor (years) 26 32 28 38 29 29 45 27 31 D 60 37 40 40 28 36 50 35 41 43 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). In this example, Hd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: Ha year(s) year(s) (Type integers or decimals. Do not round.)
The following dataset represents the number of customers a new coffee shop has over the first 60 hours, sorted and arranged in rows of 5. What is the 30th percentile of the data? 3 3 4 5 6 6 10 15 18 18 19 20 22 22 24 25 29 29 29 33 33 34 34 39 40 44 44 44 46 50 50 51 51 52 55 55 57 57 58 58 62 66 70 72 72 72 75 75 75 78 79 83 85 85 88 88 91 97 100 100 _____ customers
If you recieved the data set {9, 16, 10, 20, X} and you knew the median was 15, what could you say about X? O 10 < X < 18 OX = 14 O11 < X < 17 OX = 15 ONone of the above.
The following data provides the monthly streaming bill for a random sample of 20 households along with the number of televisions in the household (TV), the number of people living in the household (People). and the number of years that household has been a streaming customer (Years). Calculate the adjusted multiple coefficient of determination for predicting the streaming bill. Place the answer in decimal points.
The following distribution gives the number of hours spend by 50 students to do their task in a week after attending a synchronous class. NO. OF STUDENTS BOUNDARIES CLASS HOURS CLASS MARK 1-4 19 -4.5 4.5- 15-8 12 9-12 14 - 12.5 13-16 11 12.5 - 16.5 16.5- 17-20 4

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