Sarah was calculating the speeds (mph) of vehicles travelling down Maple Street on two separate days at9 am for an hour. Below is the data she collected.Wednesday's Speeds: 34,28,24,17,39,44,64,33,27,21,38,40,60,30,25,37,30,25,35,30Sunday's Speeds: 18,27,34,37,49,55,63,61,48,30,27,17,17,15,26,46,251. Create a frequency table for each day. Make sure you look at both days when setting the intervalsfor your frequency table. Remember that you need to use common intervals for both days to tallythe frequency.Wednesday's Frequency TableSpeed Interval (mph)Sunday's Frequency TableSpeed Interval (mph)TallyTallyFrequencyFrequency2. Create a histogram with appropriate labels for each day using the frequency tables you created in#1.3. What do you notice about the two histograms? Consider the following questions: Are there anypatterns in the speed distribution? Does one day look worse than the other?

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Answered: Sarah was calculating the speeds (mph)…

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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State whether the following statement is true or false, and explain why. If the statement is false, state the true change. A high school reports that its students' SAT scores were down by 6% in one year. The next year, however, the test scores rose by 14%. The high school principal announces, "Overall, test scores have improved by 8% over the past two years."
Solve these 4 questions please using the data table below
Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 80 percent chance of a positive test from a mammogram given she has breast cancer (a true positive result). A woman has a 12 percent chance of a positive test from a mammogram given she does not have breast cancer (a false positive result). Complete the table below, then answer the questions below the table. Give all answers as decimals to 4 decimal places. Positive test result Negative test result TotalHas breast cancer Does not have breast cancer Total What is the probability a woman has breast cancer given that she just had a positive test? Give answer as decimals to 4 decimal places.
The best predicted weight for a bear with a chest size of 51 inches is ? pounds. Is the result close to the actual weight of 452 pounds? A. This result is very close to the actual weight of the bear. B. This result is close to the actual weight of the bear. C. This result is not very close to the actual weight of the bear. D. This result is exactly the same as the actual weight of the bear.
Below is the data for speed vs fuel consumption. The first set is speed(x); the second is fuel (y). if x = 10, y = 21 if x = 20 y =13, if x=30 y=10 if x = 40 y =8 if x = 50 y=7 if x =60 y = 5.9 if x = 70 y = 6.3 if x = 80 y = 6.95 if x = 90 y = 7.57 if x = 100 y = 8.27 if x = 110 y = 9.03 if x = 120 y = 9.87 if x = 130 y = 10.79 if x = 140 y = 11.77 and if x = 150 y =12.83. The equation of the LSR line is y^ = 11.058 - .015x The average of (x, y) are (80, 9.9) respectively. Find another point using the LSR equation, and graph the line
In 1994, there were 714 violent crime incidents per 100,000 Americans. For the period from 1994 through 2014, this number decreased by approximately 17 incidents per 100,000 people each year. If this trend continues, by which year will violent crime incidents decrease to 289 per 100,000 people?
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A local construction company is trying to reduce costs. It found that the price of steel bars varies considerably from manufacturer to manufacturer. The table below shows the cost of one steel bar from different manufacturers. Calculate the IQR. Cost for One Steel Bar Emerson $4.31 Mannix $6.20 United $5.67 American $2.79 National $3.20 Pracox $3.57 Steelco $5.32 Cost per Steel Bar 7 6 4 3 2 1 O $2.47 O $2.53 O $4.32 O $5.36
Paolo studies bees and honey production. He gathers data on the bee population of a honeycomb and theamount of honey produced for both wild bees and farm bees. Identify the type of study and what relationship is beingexamined.
Illustration 9.7. The mean weight of 150 students in certaid class is 60 kilograms. The mean weight of boys in the class is 70 kg and that of the girls is 55 kg. Find the number of boys and the number of girls in the class.
Sarah was calculating the speeds (mph) of vehicles travelling down Maple Street on two separate days at 9 am for an hour. Below is the data she collected. Wednesday's Speeds: Sunday's Speeds: 34,28,24,17,39,44,64,33,27,21,38,40,60,30,25,37,30,25,35,30 18,27,34,37,49.55,63,61,48,30,27,17,17,15,26,46,25 4) Find the Standard Deviation of each day. Wednesday's Standard Deviation Table X x (x-)²2 n-l Sunday's Standard Deviation Table 7 (x-2)² n-1 2). Sketch Wednesday's Bell Curve with 30 Sketch Sunday's Bell Curve with 30 (x-7)²= x-F (x-7) 2 3. Based on your analysis of the data and standard deviations, which day would you say is the most dangerous day on Maple Street?
Meghan is a psychology major who is testing a maze for a group of mice to navigate. In order for it to be productive for a class project, she would like the average time for a mouse to complete the maze to be 90 seconds. She randomly selects 28 mice and has each mouse complete the maze. Meghan records the time, in seconds, that each mouse needed to complete the maze. The results are provided in the accompanying data table. Based on research and previous results, Meghan assumes that the population is normally distributed and the population standard deviation is 5.80 seconds. Use Excel to test whether the mean amount of time a mouse completes the maze is 90 seconds, and then draw a conclusion in the context of the problem, where α=0.10. Time (seconds) 85.71 93.16 87.00 89.71 94.26 92.05 86.16 82.16 94.76 HelpCopy to ClipboardDownload CSV Select the correct answer below:…

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