Compute Arithmetic Mean from the following frequency distributionC.I2-67-1112-16 17-2122 - 26Total211330

Here We will use frequency table for mean Here given Total=n=30

Answered: Compute Arithmetic Mean from the…

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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In a frequency distribution, categories should be mutually exclusive and exhaustive so that every case is classified ______. A. in logically defensible groups B. in only one category C. in multiple categories D. randomly
The amount of time (seconds) needed for assembly-line workers to complete welding was recorded for 38 workers. 10. 74 68 66 73 76 63 67 69 73 65 61 73 72 65 69 70 61 74 76 72 74 65 63 69 73 60 75 72 75 70 60 62 68 74 71 73 68 67 a) Construct a frequency distribution for these data using six classes.
Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown. Consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. Age of mother,in years Estimated number of occurrences,in thousands 15 – 20 125,075 20 – 25 312,055 25 – 30 300,458 30 – 35 217,581 35 – 40 131,236 40 – 45 52,335 45 – 50 10,577 Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown. Consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. What is the lower limit of this class?…
ploymer 59965217903652740813033898&elSBN=9780357131596&id=11418486.. CENGAGE MINDTAP Assignment 19 Q Search this course TextRequest reports that adults 18-24 years old send and receive 128 texts every day. Suppose we take a sample of 25-34 year olds to see if their mean number of daily texts differs from the mean for 18-24 year olds reported by TextRequest. Tools a. Select the null hypothesis we should use to test whether the population mean daily number of texts for 25-34 year olds differs from the population daily mean number of texts for 18-24 year olds. 1. Ho: µ = 128 2. Ho: µ 128 3. Ho: 4> 128 - Select your answer - Select the alternative hypothesis we should use to test whether the population mean daily number of texts for 25 – 34 year olds differs from the populatjon daily mean number of texts for 18 - 24 year olds. ЕE 7- 1. Ha: u# 128 mited 2. H: µ = 128 3. H: µ> 128 - Select your answer - v b. Suppose a sample of thirty 25 – 34 year olds showed a sample mean of 118.6 texts per…
8. The numbers of ant nests in each tree from a random sample of palm trees is summarized in the frequency table below: Number of nests 5 6 7 8 10 11 12 13 Frequency 1 2 1 2 2 6. 3 2 a. Calculate the sample size of the sample summarized by the frequency table. b. How many trees in the sample had exactly 6 ant nests? С. How many trees in the sample had at least 11 ant nests? d. Calculate the mode of this sample. е. Calculate the mean of this sample. Use two decimal place accuracy. f. Calculate the five-number summary of this sample; that is, calculate the minimum, first quartile, median, third quartile and maximum of this sample.
The lifetimes (in units of 106 seconds) of certain satellite components are shown in the frequency distribution given in the dataset. Carry out an appropriate statistical test to determine whether the data is normally distributed.
Find the five-number summary of the scores in the Math 130 test pre-sented in Table 4.1, page 112. Draw the boxplot.
Suppose you compile all possible samples of 25 children of preschool age in your school district. If you calculate the mean of each sample (M) and create a frequency distribution of these means, this distribution is referred to as the
A particular report included the following table classifying 816 fatal bicycle accidents that occurred in a certain year according to the time of day the accident occurred. Time of Day Number of Accidents midnight to 3 a.m. 46 3 a.m. to 6 a.m. 50 6 a.m. to 9 a.m. 85 9 a.m. to noon 72 noon to 3 p.m. 79 3 p.m. to 6 p.m. 157 6 p.m. to 9 p.m. 193 9 p.m. to midnight 134 For purposes of this exercise, assume that these 816 bicycle accidents are a random sample of fatal bicycle accidents. Do these data support the hypothesis that fatal bicycle accidents are not equally likely to occur in each of the 3-hour time periods used to construct the table? Test the relevant hypotheses using a significance level of a = 0.05. Let P1. P2: P3: P4 Ps: Pe: P7, and Pg be the proportions of accidents occurring in the eight different time periods. State the appropriate null and alternative hypotheses. O Ho: P1 = P2 = P3 = P4 = Ps = P6 = P7 = Pg = 816 H: Ho is not true. O Ho: P1 = P2 = P3 = P4 = P5 = P6 = P7 =…
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Compute Arithmetic Mean from the following frequency distribülion