Homework Answers
Add Answer to:
Average Minutes Per Night Spent On Homework 0 20 48 60 190 7. What percent of the sophomores spen...
1. The average amount parents and children spent per child on back-to-school clothes in Autumn 2010...
1. The average amount parents and children spent per child on back-to-school clothes in Autumn 2010 was $527. Assume the standard deviation is $160 and that the amount spent is normally distributed. What is the probability that the amount spent on a randomly selected child is more than $700? (Round to four decimal places) What is the probability that the amount spent on a randomly selected child is less than $100? (Round to four decimal places) What is the probability...
6). a.b. The accompanying data represent the miles per gallon of a random sample of cars...
6).
a.b.
The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) Compute the z-score corresponding to the individual who obtained 43.7 miles per gallon. Interpret this result. (b) Determine the quartiles. (c) Compute and interpret the interquartile range, IQR. (d) Determine the lower and upper fences. Are there any outliers? E Click the icon to view the data. (a) Compute the z-score corresponding to the individual who obtained...
CHAPTER 6: LEARNING CURVE (MONDAY) 1. The unit improvement factor for a 60 percent learning curve at 25 units...
CHAPTER 6: LEARNING CURVE (MONDAY) 1. The unit improvement factor for a 60 percent learning curve at 25 units is 0.0933. The first and second timings of a person doing a job are 5 minutes and 3 minutes respectively. What is the learning-adjusted time estimate for unit number 25? 2. You have just timed a person doing a job a few times. The first time it took the person 25 minutes, the second time it took 20 minutes, and the...
Effect of Molecular weight on Diffusion Time (Minutes) 0 10 20 30 40 50 60 Percent...
Effect of Molecular weight on Diffusion Time (Minutes) 0 10 20 30 40 50 60 Percent increase Methylene Blue 14.022.0125.0 20.0 20.-22 -100 9.0|14.0/16.0 18.0 /19.0/19.000122.221 Potassium Permanganate According to your data, what molecule (methylene blue or potassium permanganate) diffused the fastest? Check Your Understanding 1.1 Based on the data, what generalization can be made about the relationship between diffusion rate and molecular weight? 1.2 By observing the rate of diffusion from the data collected, does diffusion rate change over...
2) When I go mountain biking, I average 2 falls per ride. a. What kind of...
2) When I go mountain biking, I average 2 falls per ride. a. What kind of distribution is this? b. What is the probability that on a random ride I will fall 0 times? c. What is the probability that I will fall 3 or fewer times? 3) The amount of time it takes for a grocery clerk to check out a customer is evenly distributed between 1 and 5 minutes. a. What kind of distribution is this? b. What...
The amount of time adults spend watching television is closely monitored by firms because this helps...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable weekly time spent watching television would be normaly distributed? If not, what shape would you expect the variable to have? O A The variable weekly time spent watching television is likely normally distributed OB. The variable weekly time spent watching television is kely skewed right not normally...
Twenty percent (20%) of a certain type of cell phones are returned for repairs while under warranty. (i) If a company purchases ten of these cell phones for their employees, what is the probability th...
Twenty percent (20%) of a certain type of cell phones are returned for repairs while under warranty. (i) If a company purchases ten of these cell phones for their employees, what is the probability that exactly two of them will need repairs while under warranty? [6 marks] (ii) Of the 10 cell phones purchased by the company, how many would you expect to be returned for repairs while under warranty? [1 mark] (iii) Suppose five hundred (500) cell phones were...
Personal Income per Capita by State Cumulative frequency 50 40 за 20 10 48 15 34...
Personal Income per Capita by State Cumulative frequency 50 40 за 20 10 48 15 34 15 Per capita income $1000) 27.5 32.5 375 42.5 475 52.5 (i) Ogive Showing Cumulative Percentage of Data Personal Income per Capita by State Percent of states 100% 100 90 80 70 60 50 40 30 20 10 96 30 Per capita income (S1000) 27.5 325 37.542.5 475 52.5 (a) How were the percentages shown in graph (i) computed? 0 The percentages in graph...
What does the five number tell us about the time spent on email (Hint, interpret the...
What does the five number tell us about the time spent on email
(Hint, interpret the five number summary in plain English) and what
does the Boxplot and the normality test show? Explain.
Use the 1.5xIQR rule to identify possible outliers. List the
cutoff points for outliers, Show your workings. Explain what you
found out. (Hint: Are there any excessive time spent on email for
Male(1) or Female(2) or both).
GET DATA /TYPE-XLS /FILE='C: \Users\rmanda 1 \ Desktop\homework! . xls'...
3. Waiting times (in minutes) of customers in a bank where all customers enter a single...
3. Waiting times (in minutes) of customers in a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the mean and median for each of the two samples, then compare the two sets of results. Single Line 6.36.3 6.66.6 6.76.7 6.86.8 6.96.9 7.17.1 7.67.6 7.87.8 7.87.8 7.87.8 Individual Lines 4.14.1 5.55.5 6.06.0 6.16.1 6.26.2 7.87.8 7.87.8 8.78.7 9.29.2 10.010.0 The mean waiting...
6).
a.b.
The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) Compute the z-score corresponding to the individual who obtained 43.7 miles per gallon. Interpret this result. (b) Determine the quartiles. (c) Compute and interpret the interquartile range, IQR. (d) Determine the lower and upper fences. Are there any outliers? E Click the icon to view the data. (a) Compute the z-score corresponding to the individual who obtained...
Effect of Molecular weight on Diffusion Time (Minutes) 0 10 20 30 40 50 60 Percent increase Methylene Blue 14.022.0125.0 20.0 20.-22 -100 9.0|14.0/16.0 18.0 /19.0/19.000122.221 Potassium Permanganate According to your data, what molecule (methylene blue or potassium permanganate) diffused the fastest? Check Your Understanding 1.1 Based on the data, what generalization can be made about the relationship between diffusion rate and molecular weight? 1.2 By observing the rate of diffusion from the data collected, does diffusion rate change over...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable weekly time spent watching television would be normaly distributed? If not, what shape would you expect the variable to have? O A The variable weekly time spent watching television is likely normally distributed OB. The variable weekly time spent watching television is kely skewed right not normally...
Personal Income per Capita by State Cumulative frequency 50 40 за 20 10 48 15 34 15 Per capita income $1000) 27.5 32.5 375 42.5 475 52.5 (i) Ogive Showing Cumulative Percentage of Data Personal Income per Capita by State Percent of states 100% 100 90 80 70 60 50 40 30 20 10 96 30 Per capita income (S1000) 27.5 325 37.542.5 475 52.5 (a) How were the percentages shown in graph (i) computed? 0 The percentages in graph...
What does the five number tell us about the time spent on email
(Hint, interpret the five number summary in plain English) and what
does the Boxplot and the normality test show? Explain.
Use the 1.5xIQR rule to identify possible outliers. List the
cutoff points for outliers, Show your workings. Explain what you
found out. (Hint: Are there any excessive time spent on email for
Male(1) or Female(2) or both).
GET DATA /TYPE-XLS /FILE='C: \Users\rmanda 1 \ Desktop\homework! . xls'...
Most questions answered within 3 hours.
-
What is the NPV?
r=9.28
c1= 5.853
c2= 6.37 + 1,826.76
asked 10 minutes ago -
Please think of 2 on line only retailers that might benefit from
a brick and mortar...
asked 57 minutes ago -
The definition of a partition
function involved a sum over all states, and knowledge of the...
asked 2 hours ago -
Which of the following events would be considered Systematic?
(Choose all that apply.)
A. The Federal...
asked 2 hours ago -
Questions of this part analyze the students’ understanding in
analyzing the given scenario and practical skills...
asked 2 hours ago -
#C++
Write a function, named sortByCourseNumber, that takes a
reference to a vector of string (like...
asked 2 hours ago -
A
cylunder of titanium (length = 5.00cm, diameter = 1.20 cm) has a
mass of 25.5...
asked 3 hours ago -
1) Answer Each question with 1-2 Sentences:
a) How can we use the continuity and change...
asked 4 hours ago -
5. What is the decimal equivalent of the largest binary
integer that can be obtained with...
asked 3 hours ago -
Why is the magnitude of the Type Ia supernova always the same
(-19.6)?
asked 4 hours ago -
5. You are a quality control engineer and you are
asked to analyze the lifetime (in hours)...
asked 4 hours ago -
How many ways can 2 people be chosen and arranged in a straight
line if there...
asked 5 hours ago