1. How does the cost of shipping a standard-sized crate relate to the distanceof the destination? Can the cost of shipping be determined using thedistance of the destination? To answer these questions, a PhilippineAirlines statistician used 12 freight invoices randomly drawn andsummarized below.Distance(hundred ofkilometers)14Charge(in pesos)14002000800160016201900620144090018002100750239171022512616258(b) Using the method of least squares, determine the equation for theestimated regression line.

Given that The excel output using regression is

Answered: 1. How does the cost of shipping a…

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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The height of bedridden patients is often estimated from the length of the patient's ulna, the distance between the point on the elbow and the prominent bone on the wrist. Eight men over the age of 65 had both their height (in centimeters) and the length of their ulna (in centimeters) measured. The data are given in the table below. Ulna length (cm) 20 23 24 26 27 29 30 31 Height (cm) 160 163 166 168 171 178 182 186 Let x denote a patient's ulna length (in cm) and y denote the patient's height (in cm). Assume that the population distributions for both ulna length and height are approximately normal. The following summary measures were obtained from the data. X = 26.25, ỹ = 171.75, SSxx = 99.5, SSyy= 609.5, SSxy= 238.5 ху We wish to find the least squares regression line for the data in this table using ulna length as an independent variable and height as a dependent variable. Estimate the y-intercept of the least squares regression line. Enter your answer using three decimal places.
Which of the following could most be considered an ordinal variable? a. Height (ft) b. Weight (kg) c. Body mass index (kg/m2) d. Education level e. Annual Income ($)
Jermaine developed a new test to measure IQ. He claimed that using his test, someone with an IQ of 180 would be considered twice as intelligent as someone with an IQ of 90 and that someone with an IQ of 90 was three times as intelligent as someone with an IQ of 30. Jermaine's test treats IQ as Select one: a. a ratio variable b. an interval variable c. an ordinal variable d. a nominal variable
Help me resolve this problem please!!!!??
2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori School in 2006: Length of foot (cm) Y 20.9 Width of foot (cm) X 8.5 24 9 19.6 7.9 22.6 8.8 21 8.8 21.6 9.3 For the next five items, refer to the problem above, in the previous page. In addition to the female grade 4 students, below are some of the boys measurements: Width of foot (cm) Length of foot (cm) Y 8.4 8.8 9.7 9.8 8.9 9.7 22.4 23.4 22.5 23.2 23.1 23.7 5. What is the coefficient of determination () of the width and length of food?
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. The possible responses to the question "How many DVD players made by other manufacturers have you used?" result in Select one: a. a ratio scale variable. b. an interval scale variable. c. a nominal scale variable. d. an ordinal scale variable.
2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori School in 2006: Length of foot (cm) Y 20.9 Width of foot (cm) X 8.5 24 9 19.6 7.9 22.6 8.8 21 8.8 21.6 9.3 For the next five items, refer to the problem above, in the previous page. In addition to the female grade 4 students, below are some of the boys measurements: Width of foot (cm) Length of foot (cm) Y 22.4 23.4 22.5 23.2 23.1 8.4 8.8 9.7 9.8 8.9 9.7 23.7 4. What is the y-intercept (be) of the least squares regression line?
5. The average cost of mini protein bars is between $30 and $60. What is the range of the number of mini protein bars that can be manufactured using this average cost?
The marketing manager of "ABC Tapes" wants to assess the competitiveness of the company's product in the market. Table 1 represents the prices and quantities of blank cassette tapes sold in January 2016 and January 2020. TABLE 1 2016 2020 Length of tapes Price Quantity Price Quantity 30 minutes R 4.00 32 R 5.60 40 60 minutes R 4 30 150 R 6.15 190 90 minutes R 4.60 100 R 7.40 130 Using 2016 as base and calculate for 2020 the following: Determine the Laspeyres price index: a) 149.492 Ob) 149.367 Oc) 66.949 d) 66.893
A company's price/earnings (P/E) ratio is the company's current stock price divided by the latest 12 months' earnings per share. Suppose the following table shows the P/E ratios for a sample of 10 Japanese companies and 12 U.S. companies. Japan P/E Ratio 156 28 14 129 38 216 67 665 36 64 United States P/E Ratio 12 27 27 46 23 17 28 17 28 34 19 17 Is the difference between the P/E ratios for the two countries significant? Use the MWW test and ? = 0.01 to support your conclusion. State the null and alternative hypotheses. H0: The two populations of P/E ratios are identical.Ha: The two populations of P/E ratios are not identical.H0: The two populations of P/E ratios are not identical.Ha: The two populations of P/E ratios are identical. H0: Median for Japanese companies − Median for U.S. companies > 0Ha: Median for Japanese companies − Median for U.S. companies = 0H0: Median for Japanese companies − Median for U.S.…
2. Nazirs annual income is OMR 288000. His saving amount is OMR 36000. The ratio of his saving to expenditure is
company's price/earnings (P/E) ratio is the company's current stock price divided by the latest 12 months' earnings per share. Suppose the following table shows the P/E ratios for a sample of 10 Japanese companies and 12 U.S. companies. Japan P/E Ratio 155 26 19 123 36 215 61 667 35 69 United States P/E Ratio 14 21 21 45 28 11 26 11 26 39 13 11 Is the difference between the P/E ratios for the two countries significant? Use the MWW test and ? = 0.01 to support your conclusion. Find the value of the test statistic. W = Find the p-value. (Round your answer to four decimal places.) p-value =

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