Ms. Abrao wanted to try a new grading scheme to determine grades for the next exam. Shedecided to base grades on student's z-scores, relative to the rest of the class. The scale sheused is given below:O 15O 535Grade9ABCDFIf her class consists of 93 students, based on this scale, approximately how many studentswould receive an A on any given exam?z score rangeabove 1.3between 0.3 and 1.3between -0.3 and 0.3between -1.3 and -0.3below -1.3

Given: Grade and their corrsponding z score range The class contains 93 students. We have to find…

Answered: Ms. Abrao wanted to try a new grading…

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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find the 95% c.I for the mean selling price of 1300 sq ft condos remember n=5 , b0=-32.7, b1=7.5 ,, x=11 , ssxx=22, mse=28.433333
You are working with a neighborhood committee to apply for a grant to buy new playground equipment for alocal park. According to the data from the 2010 census, 27 households in the neighborhood have children and 18households do not have children. Which of the following represents the ratio of families without children to families with children? NOTE: this is a part to part ratio.
The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of people who appear on the list that are actually caught. Step 1 of 2: Suppose a sample of 233 suspected criminals is drawn. Of these people, 72 were captured. Using the data, estimate the proportion of people who were caught after being on the 10 Most Wanted list. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 233 suspected criminals is drawn. Of these people, 72 were captured. Using the data, construct the 80% confidence interval for the population proportion of people who are captured after appearing on the 10 Most Wanted list. Round your answers to three decimal places.
given the following:median (50th percentile) = 854 25th percentile = 799 What percent of the numbers is between 799 and 854?
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 33 who smoke. step 1 of 2: suppose a sample of 1267 Americans over 33 is drawn. Of these people, 913 don't smoke. Using the data, estimate the proportion of Americans over 33 who smoke. Enter your answer as a decimal number rounded to three decimal places.
Find the margin of error for the given data values of c,s and n C = 0.95, s = 520 and n = 62 Round to two decimals
The following histogram shows the amount of Potassium (in milligrams (mg) perserving) in 39 boxes of cereal. Use this histogram to answer the following questions. Image(a) What is the shape of this data?(b) What percent of the tested cereals have less than 80mg of potassium per serving?(c) What are the highest potassium levels in these cereals? Be as accurate as youare able.(d) What are the lowest potassium levels in these cereals? Be as accurate as you areable.
Please double check my answers.
suppose the five number summary for the normal annual precipitation (in inches) for 12 different U.S. cities is the following: 5.1, 11.5, 16, 22.1, 51.7 A. The IQR is 10.6 This means that the difference between the largest an smallest amount of rainfall is 10.6 inches B. The IQR is 10.6 This means that the range of the middle 50% of rainfall values is 10.6 inches. C. The IQR is 46.6 This means that the difference between the largest and smallest amount of rainfall is 46.6 D. The IQR is 46.6 This means that the range of the middle 50% of rainfall is 46.6 inches.
I can't understand why the data is the percentage of surveyed parents.
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?
In some 4.0 grading systems, a student's grade point aversge (GPA) is calculated by assigning letter grades the following numerical values. (See attachment) Use this grading system to find this student's GPA. Round to the nearest hundredth. Tessa's cumulative GPA for 3 semesters was 3.18 for 46 course units. Her fourth semester GPA was 3.72 for 12 course units. What is Tessa's cumulative GPA for all 4 semesters?

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