Answer all the questions1. a. The profits (in lakhs of rupees) of 20 companies for the year 2000-2009 are givenbelow:20, 22, 53, 49, 65, 39, 48, 67, 18, 16, 23, 37, 35, 49, 63, 57, 69, 25, 29, 58.i.Represent the above data in a frequency table using exclusive class interval. (6)Represent the above data in a histogram. (2)ii.

Solution-: Given data: Profit (in lakhs of rupees )…

Answered: 1. a. The profits (in lakhs of rupees)…

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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Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoccupied seats per flight over the past year. 225 flight records are randomly selected and the number of unoccupied seats is noted, with a sample mean of 11.6 seats and a standard deviation of 4.1 seats. How many flights should we select if we wish to estimate μ to within 5 seats and be 95 percent confident?
(5) A certain educational institute has 15 centers located at different places in a city. There are three telephone operators in each center. The manager wanted to estimate the average number of calls received per telephone per week for this institute. He decided to select four centers and the number of calls received on last week for each operator were recorded. The data collected are given in Table 02. Answer the following questions. Table 02: Number of calls received for each operator 25, 15, 30 18, 12, 10 20, 18, 22 15, 20, 18 Center 1 4 (i) (ii) What is the sampling method used in this study? Justify your answer. Estimate the average number of telephone calls received per telephone operator.
The marks scored by 25 students in an examination is recorded as follows.15, 18, 22, 34, 45, 21, 20, 36, 48, 42, 30, 9,37, 28, 44, 40, 32, 19, 18, 41, 37, 28, 35, 46, 20 1) Construct a frequency distribution table with 6 classes.2) Find relative frequency and cumulative frequency and relative frequency percentage
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USH financial is examining the use of its midtown ATM machine. Here are the numbers of transactions made per day at this ATM during the past 9 days. 28, 9, 10, 26, 28, 9, 19, 11, 35 Find the range of the data set. ন
The following are the lengths of stay (in days) for a random sample of 16 patients discharged from a particular hospital: 13, 9, 5, 11, 6, 3, 12, 10, 11, 7, 12, 12, 12, 9, 9,9 Send data to calculator Draw the histogram for these data using an initial class boundary of 2.5 and a class width of 2. Note that you can add or remove classes from the figure. Label each class with its endpoints. Frequency S 0 This f Length of stay (in days) 0 Tom 0:00 00:0 X
I am suppose to make a histogram for beer calories of 30 beers and tell how it is skewed can you explaine how to do this? The numbers of calories in the beers are: 215,147,100,157,93,159,197,177,134,151,112,114,168,97,133,137,110,69,176,142,109,186,141,112,131,138,121,144,148,145 can you explain to me how this is done to make a histogram and how it's skewed.
rrom the following ultimate class frequencies of the positive and negative classes and the total number of observations : (AB) = 100 , (aB) = 80 , (AB) = 50 , (aß) = 40.
The following data show the of number of shoes (in 1000 units) sold by a new shoe manufacturing company in the 8 consecutive months of 2020: Month # Sold Month # Sold --------------------------------------------------------------------- January 8.42 | May 11.14 February 9.67 | June 10.61 March 10.42 | July 12.50 April 10.90 | August 12.82 Hand Estimate a linear trend model for the monthly sales of the company. Predict the number of shoes sold in September and October.

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