Isabel attends a fashion institute that has no on-campus housing. The distance she commutes between her home and the campus is 19 kilometers. The meandistance commuted to campus among all students at the fashion institute is 15 kilometers with a standard deviation of 6 kilometers.(a) Find the -score of Isabel's commute distance relative to the commute distances among all the students at theinstitute. Round your answer to two decimal places.==(b) Fill in the blanks to interpret the-score of Isabel's commute distance. Make sure to express your answer in terms ofa positive number of standard deviations.Isabel's commute distance is standard deviations (Choose one) the mean commute distance amongall students at the institute.X

Given ,The distance isabel's commutes between her home and the campus is , X = 19 kilometres.The…

Answered: Isabel attends a fashion institute that…

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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A class uses weighted averages to calculate your course grade. Homework is worth 75% of your course grade and Tests are worth 25% of your course grade. A student has a score of 87 on homework and earns 74 on tests. What is the weighted average of their course grade? Enter your answer with 2 decimal places.
Adam just graded his exams. the mean score is 74, the median is 76.5, the range is 65 and the standard deviation is 11. If he decides to add 7 points to each student's score to curve, what will the new mean, median, range, and standard deviation be Explain step by step
ONLY SOLVE C The speed at which people type is measured in terms of words per minute (wpm). The WPM data file contains the typing speeds in wpm for 39 individuals. Download this data and import it into R or RStudio and answer the following questions.(a) Use R to compute the mean, median, and standard deviation wpm.Mean: x―= wpm (Include all decimals printed by R)Median: x~= wpm (Include all decimals printed by R)Standard deviation: s= wpm (Include all decimals printed by R)(b) Use R to compute the 30th percentile.Answer: wpm (Include all decimals printed by R)(c) 35% of wpm values are greater than what wpm? Use R.Answer: wpm (Include all decimals printed by R)
Jose has scored 79 , 84 , and 85 on his previous three tests. What score does he need on his next test so that his average (mean) is 80 ?
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Sofia wants to determine the average household expenditure on lawn care products per year. She believes that the standard deviation is 19.2. She wants to be 95% confident. How many people does she need to ask for a margin of error of $2.50? Round the answer as you should for this type of problem.(Don't worry if Canvas adds extra zeros after the decimal.)
A California lake has been stocked with rainbow trout. These trout have an average length of 24 inches, with a standard deviation of 3 inches. Someone goes fishing and catches a trout that is 26.25 inches long. Express the length of this trout in standard units, relative to all the trout that were used to stock the lake. Choose the answer below that is closest.
Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73
P-Value means
A student has an average of 81 on four equally weighted tests she has taken in her statistics class. What grade must she receive on her fifth test if she needs an average score of 83? Answer is 91? Can you help me to explain to me step by step?
The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 42 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n=42; ¯x=40.63 pounds; s=3.49 pounds a) Identify the null and alternative hypotheses?H0: H1: c) Identify the appropriate significance level.d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two…
The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 50 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n=50 ; ¯x=40.49 pounds; s=3.49 pounds a) Identify the null and alternative hypotheses? H0: H1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed c) Identify the appropriate significance…

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