A survey was administered to a nationwide random sample of 199 adults who were asked to reporttheir monthly cell phone bill (in dollars). A histogram of the results is shown below.0.35-Relative Frequency0.300.250.200.150.100.050 50 100 150 200 250 300 350 400 450Cell Phone Bill ($ per month)Which of the following statements must be false?(A) The distribution of monthly cell phone bills is skewed to the right.(B) The mean monthly cell phone bill is higher than the median monthly cell phone bill.(C) The number of respondents whose monthly cell phone bill is less than $50 is approximately 32.(D) There were no reported monthly cell phone bills between $300 and $350.(E) Sixteen percent of respondents reported monthly cell phone bills of more than $50.

First, let's analyze the given data. We have the relative frequencies for different ranges of…

Answered: A survey was administered to a…

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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The Department of Motor Vehicles office tried a new customer service system after people complained they were wasting too much time waiting in line. Use the two relative frequency histograms to answer the following questions. Waiting Times at the DMV (OLD SYSTEM) Waiting Times at the DMV (NEW SYSTEM) 50 8 40- 8 Percent 8 10 0 0 5 10 15 20 Time Waited OLD (in minutes) 8% 60% 50% 25 30 Percent 50 40 8 O 10 0 0 T 20 15 Time Waited (in minutes) 5 10 25 30 About what percent of customers waited fewer than 10 minutes under the old system?
The mean value of land and buildings per acre from a sample of farms is $1600, with a standard deviation of $100. The data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any of the data values very unusual (more than three standard deviations from the mean)? $1473 $1868 $1729 $1238 $1609 $1616 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply. A. $1729 B. $1609 C. $1868 D. $1238 E. $1473 F. $1616 Which of the farms are very unusual (more than three standard deviations from the mean)? Select all that apply. A. $1609 B. $1729 C. $1473 D. $1616 E. $1238 F. $1868 G. None of the data values are very unusual.
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? a. the range of the sample data is $ million. (Type an integer or a decimal.) b.The variance of the sample data is (Round to two decimal places as needed.) c. The standard deviation of the sample data is $ million. (Round to two decimal places as needed.)
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? a. The range of the sample data is million. (Type an integer or a decimal.) b. The variance of the sample data is (Round to two decimal places as needed.) c. The standard deviation of the sample data is $million. (Round to two decimal places as needed.)
The mean value of land and buildings per acre from a sample of farms is $1300, with a standard deviation of $300. The data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any of the data values very unusual (more than three standard deviations from the mean)? $1752 $2163 $787 $353 $1330 $1664 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply. A. $353 B. $1664 C. $1752 D. $1330 E. $787 F. $2163 Which of the farms are very unusual (more than three standard deviations from the mean)? Select all that apply. A. $2163 B. $1330 C. $1752 D. $1664 E. $353 F. $787 G. None of the data values are very unusual.
Suppose the value of a stock varies each day from $10.82 to $23.17 with a uniform distribution. Find the third quartile, i.e. , 75% of all days the stock is below what value ?
Which is the largest with regard to the following data set: the range or the standard deviation? 11 11 12 12 12 12 13 15 17 22 22 22 Standard Deviation Range
TABLE 2: San Pedro Participant Height (inches) Weight (pounds) 1 66 240 2 72 190 3 61 250 4 44 120 5 65 222 The above tables include data from a sample of city employees in San Pedro. Use the table to answer the following question. What is the mean height? 0 0 = 61.2 x= 61.8 x= 61.6 = 61.6
The mean value of land and buildings per acre from a sample of farms is $1400, with a standard deviation of $200. The data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any of the data values very unusual (more than three standard deviations from the mean)? $1041 $1959 $1417 $693 $1217 $1643 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply. O A. $693 O B. $1041 O c. $1417 O D. $1217 O E. $1643 OF. $1959 Which of the farms are very unusual (more than three standard deviations from the mean)? Select all that apply. O A. $1217 O B. $1041 O C.. $1643 O D. $693 O E. $1959 O F. $1417 O G. None of the data values are very unusual. Noxt
The mean value of land and buildings per acre from a sample of farms is $1600, with a standard deviation of $100. The data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any of the data values very unusual (more than three standard deviations from the mean)? $1592 $1865 $1456 $1291 $1787 $1784 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply. A. $1456 В. $1291 C. $1592 D. $1865 E. $1784 F. $1787 Which of the farms are very unusual (more than three standard deviations from the mean)? Select all that apply. A. $1784 B. $1865 O c. $1456 D. $1291 E. $1787 F. $1592 G. None of the data values are very unusual.

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