The following table shows the amount of a chemical substance over time.Time (hours)Amount (mg)25372728322734264424(a) Find a linear regression equation based on the table.Round each number to two decimal places and use x for the variable.(b) Using your equation from (b), estimate the amount of the substance in 24 hours.milligrams

Find Regression line equations from the following data, also Estimate y when x = 24 X Y 25 37…

Answered: The following table shows the amount of…

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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Requesting answers for d, e and f. 1. The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in F) for that month. The past year’s usage and temperatures are in the following table: Month Temp Usage/1000 Month Temp Usage/1000 Jan 21 185.79 Jul 68 621.55 Feb 24 214.47 Aug 74 675.06 Mar 32 288.03 Sept 62 562.03 Apr 47 424.84 Oct 50 452.93 May 50 454.58 Nov 41 369.95 Jun 59 539.03 Dec 30 273.98 d. Suppose that the monthly average temperature is 47 F. Calculate the fitted value of y and the corresponding residual. e. Test for significance of regression using α=0.01 (Use ANOVA). f. Calculate the r2 of the model and also find a 99% CI for β1.
CCSS CCSS SMP4, 5.G.2, 8.SP.1, 8.SP.2 A fifth-grader's science fair project investigated the relationship between the length of a pendulum and the time it takes the pendulum to swing back and forth. The student made a pendulum by tying a heavy washer to a string and attaching the string to the top of a triangular frame, as shown in the diagram below. The length of the string could be varied. The table and scatterplot below show how long it took the pendulum to swing back and forth 10 times for various lengths of the string. (Several measurements were taken and averaged.) Length of String in Inches 1 2 3 4 5 6 7 8 9 10 二 12 13 14 Time of 10 Swings in Seconds. 2.61 2.97 3.04 3.41 3.96 4.13 4.22 4.5 4.64 5.13 5.32 5.56 5.62 C00 Time in seconds 7 6 5 T N 1 0 0 is 5 10 15
Scientists did a study to see whether a new fuel additive had any effect on gas mileage (mpg). Seven identical cars were driven for 1 week with normal gas/no additive, and then driven the next week using gas with the additive. The miles-per-gallon was recorded for each vehicle. Please use the appropriate t-test and do the calculations requested below and fill in the blanks. No additive Additive D D2 16 19 3 9 13 16 3 9 15 14 -1 1 17 17 0 0 20 24 4 16 26 28 2 4 25 28 3 9 ∑D=14 ∑D2= 48 For this study, the sample size n = and the mean difference MD = . The SSD = , the variance s2D = , the…
Consider the quantities µ1, σ1, x1, s1, µ2, σ2, x2, and s2. a. Which quantities represent parameters and which represent statistics?b. Which quantities are fixed numbers and which are variables?
13. 0.004 g = mg 29. 1.85L= mL 14. 6.5 fluid ounces = mL 30. 750 mg = %3D g
34. Book Collection Between 1980 and 2000 a rare book collec- tor purchased books for his collection at the rate of 40 books per year. Use this information to complete the following table. (Note that not every year is given in the table.) Year Number of books Year Number of books 1980 420 1995 1981 460 1997 1982 1998 1985 1999 1990 2000 1220 1992
A mixture of sucrose and water was heated on a hot plate, and the temperature (in °C) was recorded each minute for 20 minutes by three thermocouples. The results are shown in the following table. Time O 1 2 3 4 5 6 7 8 9 71 20 18 29 32 37 36 46 46 56 58 11 10 11231415 167 18 19 20 INR888 gege 64 72 79 84 82 87 98 103 107 103 102 T2 ON 18 22 22 25 37 46 45 44 54 64 69 65 80 74 87 93 90 100 100 103 103 T3 21 11 26 35 33 35 44 43 63 68 62 65 80 75 78 88 91 103 112 107 104 Compute the least-squares line for estimating the temperature as a function of time, using 73 as the value for temperature. (Round the ▼
Life-saving drug: Penicillin is produced by the Penicillin fungus, which is grown in a broth whose sugar content must be carefully controlled. Several samples of broth were taken on three successive days, and the amount of dissolved sugars, in milligrams per milliliter, was measured on each sample. The results were as follows. Day 1: 4.8 5.2 5.3 5.0 5.0 4.8 4.7 4.9 5.0 4.6 4.7 5.1 4.8 Day 2: 5.1 4.7 4.7 5.0 5.2 5.0 5.5 5.0 4.9 5.1 5.3 5.0 5.6 Day 3: 5.6 5.0 5.0 5.7 5.3 5.2 5.0 5.4 5.2 5.1 5.3 5.1 5.1 Send data to Excel Part: 0 / 2 Part 1 of 2 (a) Construct an ANOVA table. Round your answers to four decimal places as needed. One-way ANOVA: Sugar Concentration Source DF MS F P Days Error Total
Refer to the table to the right summarizing measured amounts of serum cotinine (ng/mL) from a sample of smokers. When nicotine is absorbed by the body, cotinine is produced. How many subjects are included in the summary? Is it possible to identify the exact values of all of the original cotinine measurements? Cotinine (ng/mL) 0-99 100-199 200-299 300-399 400-499 How many subjects are included in the summary? (Type a whole number.) Is it possible to identify the exact values of all of the original cotinine measurements? Frequency 10 14 15 3 2 OA. Yes. The exact data values are equally spaced numbers between the limits of each class. The number of equally spaced numbers is determined by the frequency in each class. OB. No. A frequency table only shows percentages of the sample in each category. OC. No. A frequency table only shows frequencies of data values in each category. OD. Yes. The data values are the frequencies shown in the table.

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The following table shows the amount of a chemical substance over time. Time (hours) Amount (mg). 37 27 28 32 27 34 26 44 24 25