Credit Score0-15 15-30Number of Applicants 70 4530-45 45-60 60-75 75-90 90+25 30 23 10 0Compute an estimate (to four decimal places) of the mean credit scores of thelending portfolio.

Given that Frequency distribution table Class Frequency 0 - 15 70 15 - 30 45 30 - 45 25…

Answered: Credit Score 0-15 15-30 30-45 45-60…

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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Five number summary 57 67 68 69 72 75 76 79 80 81 83 85 92 94 messageAsk an Expert notifications account_circle arrow_back Q&A Library Five number summary 57 67 68 69 72 75 76 79 80 81 83 85 92 94 Mean Range Mid-Range Standard Deviation close Get live help whenever you need from online tutors!Try bartleby tutor todayarrow_forward Question Five number summary 57 67 68 69 72 75 76 79 80 81 83 85 92 94 (Section # 3) 4. Shade under the curve where 5. Find a table percentage for z = 1.2 Test # 3 Scores had a Mean of 82 and a Standard Deviation of 5 6 . Find a z score for x = 81 and x = 68 z– score for 81 z– score for 68 7. Find the percent of scores that were above 86. Z score for 86 Table score for 86 Shade the desired section under the Standard Normal curve. Where the scores are greater than 86 Find the percent of scores that were above 86. 8. Find the percent of scores between 68 and 81…
I Professor Brown administered an achievement test, which as he remembers from years of experience, yielded a population mean score of 85. If his class of 25 students obtained a mean score of 89 with standard deviation score of 14, can the professor claim that his class is a superior class? Assume that the mean score is approximately normally distributed. Use a = 0.01
investigation hypothesises that cholesterol levels in children may be affected by educating parents on proper nutrition and exercise. The sample size is 40 families child aged 10-15 years old with high cholesterol. Children mean cholesterol is 175 stand deviation 19.5 is there significant evidenceo of a relation in total cholesterol/ null value is 191 cholestrol
Hz A certain brokerage house wants to estimate the mean daily return on a certain stock. A random sample of 19 days yields the following return percentages. -2.4, -2.64, 0.75, 1.96, 0.25, -2.17, 1.74, 2.59, 2.97,-0.86, -2.55, -0.72, -1.33, -0.95, -1.73, 2.49, 0.82, 0.15, -2.18 Send data to calculator Send data to Excel If we assume that the returns are normally distributed, find a 90% confidence interval for the mean daily return on this stock. Give the lower limit and upper limit of the 90% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit: I Don't Know Submit X 3 O Search e acer Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use * X
Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 110 minutes and a standard deviation of 15 minutes. What proportion of 1040R tax forms will be completed in 0 less than 85 minutes? Round your answer to at least four decimal places,
A sample is given from the values of the EV/Net Income index (an indicator that compares the value of an enterprise with its net profit) for 100 enterprises of this industry. 1. Make an interval variation series. 2.Plot a histogram of relative frequencies N.b) the first image is the table for the task and the second image(descriptive statistics), is describe the steps you should follow for the assignment.
Based on the frequency polygon above, what could be the initial lower bound interval? * Test Scores 45 40 35 30 25 20 15 10 44.5 54.5 64.5 74.5 84.5 94.5 104.5 Scores Frequency
Departures 2011 What are the chances your flightwill leave on time? The U.S. Bureau of TransportationStatistics of the Department of Transportation publishes information about airline performance. Here are a histo-gram and summary statistics for the percentage of flights departing on time each month from 1995 thru September2011. (www.transtats.bts.gov/HomeDrillChart.asp)There is no evidence of a trend over time.a) Check the assumptions and conditions for inference.b) Find a 90% confidence interval for the true percentageof flights that depart on time.c) Interpret this interval for a traveler planning to fly.
The actual monthly demand of special pizza in the past 6 months were: 449, 352, 413, 348, 290, 352 If a four-month moving average forecasting model is used to generate forecasts, what is the value of the Mean Absolute Percent Error (in percent)? Use at least 4 decimals.
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Measures average (central tendency/ location). The test scores of a class of students are presented by the following date set: 88, 86, 66, 50, 65, 90, 98, 100, 76, 89, 66, 89, 88, 90, 91, 90, 40, 77, 82, 86 Note: Recall the definitions of measures of central tendency. 10Extra: Subtract 5 points from each score. How would requested measures of average change? Generalize and make a conjecture. Find and compare ranges / midranges of both data sets. Find the mean, median, and mode. Mean, median, mode
Question: What is the standard deviation of the following set of numbers: 2, 4, 4, 4, 5, 5, 7, 9?

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Credit Score 0-15 15-30 30-45 45-60 60-75 75-90 90+ Number of Applicants 70 45 25 30 23 10 0 Compute an estimate (to four decimal places) of the mean credit scores of the ending portfolio.