The growth G of a population of lower organisms over a day is a function of the population size n at the beginning of the day. If both n and G are measured in thousands of organisms, the formula is G--0.03n + n. (0) Make a graph of G versus n. Include values of n up to 40 thousand organisms. G. 10 20 30 40 10 20 30 40 10- 10 10 20 30 40 10 20 30 (b) Calculate G(36). G(36) - thousand organisms Explain in practical terms what your answer means. the line is decreasing Soore 0.33 out of 0.33 Commert:
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For what two population levels will the population grow by 2 thousand over a day ?
- The analysis of tooth shrinkage byC. Loring Brace and colleagues at the University of Michigan’s Museum of Anthropology indicates that human tooth size is continuing to decrease and that the evolutionary process has not yetcome to a halt. In northern Europeans, for example, tooth sizereduction now has a rate of 1% per 1000 years.a. If t represents time in years and y represents tooth size, usethe condition that y = 0.99y0 when t = 1000 to find thevalue of k in the equation y = y0ekt. Then use this value of kto answer the following questions.b. In about how many years will human teeth be 90% of theirpresent size?c. What will be our descendants’ tooth size 20,000 years fromnow (as a percentage of our present tooth size)?1. In reference to the general nature of research, how could this research topic entitled “Conditioning as a Function of the Interval between the Conditioned and Original Stimulus” be classified? A. Basic research B. Applied Research C Both basic and applied D. None of the aboveThe following table shows the number of U.S. non-farm employees N (in millions) for selected years from 2010 and projected to 2040. Year Millions Year Millions 2010 131 2026 157 2014 138 2030 161 2018 148 2035 165 2022 152 2040 170 Suppose the rate of change of the number of these employees can be modeled by dN dt = 28.2 t + 5
- The following table gives the number of pints of type A blood used at Damascus Hospital in the past 6 weeks: Week Of Pints UsedAugust 31 360September 7 389September 14 410September 21 378September 28 368October 5 374 a) The forecasted demand for the week of October 12 using a 3-week moving average = 373.33 pints (round your response to two decimal places). b) Using a 3-week weighted moving average, with weights of 0.15, 0.25, and 0.60, using 0.60 for the most recent week, the forecasted demand for the week of October 12 = ? pints (round your response to two decimal places and remember to use the weights in appropriate order — the largest weight applies to most recent period and smallest weight applies to oldest period.)Marine biologists have noticed that the color of the outermost growth band on a clam tends to be related to the time of year in which the clam dies. A biologist conducted a small investigation of whether this is true for the species Protothaca staminea. She collected a sample of 50 clam shells in February and 27 clam shells in March. 15 of the shells from February had a dark color on the outermost growth band, whereas 8 of the shells from March had a dark color on the outermost growth band. Carry out a hypothesis test to see if there is a difference in the proportion of shells with a dark outermost growth band between the two months. The point estimate for the true difference in proportion of dark growth bands between February and March is:Marine biologists have noticed that the color of the outermost growth band on a clam tends to be related to the time of year in which the clam dies. A biologist conducted a small investigation of whether this is true for the species Protothaca staminea. She collected a sample of 50 clam shells in February and 27 clam shells in March. 15 of the shells from February had a dark color on the outermost growth band, whereas 8 of the shells from March had a dark color on the outermost growth band. Carry out a hypothesis test to see if there is a difference in the proportion of shells with a dark outermost growth band between the two months. Let ? = 0.01. A) The point estimate for the true difference in proportion of dark growth bands between February and March is:
- Marine biologists have noticed that the color of the outermost growth band on a clam tends to be related to the time of year in which the clam dies. A biologist conducted a small investigation of whether this is true for the species Protothaca staminea. She collected a sample of 50 clam shells in February and 27 clam shells in March. 15 of the shells from February had a dark color on the outermost growth band, whereas 8 of the shells from March had a dark color on the outermost growth band. Carry out a hypothesis test to see if there is a difference in the proportion of shells with a dark outermost growth band between the two months. Let ? = 0.01.Note: Do all calculations as February - March A) The point estimate for the true difference in proportion of dark growth bands between February and March is: I need help and webassign rejected the 0.0037 as the answer. I'm so lost. I emailed my professor and he hasn't gotten back to me. Please help. Thank you.The prices (in $) of Rawlston, Inc. stock ( y) over a period of 12 days, the number of shares (in 100s) of company's stocks sold ( x 1), and the volume of exchange (in millions) on the New York Stock Exchange ( x 2) are shown below. Day (y) (x1) (x2) 1 87.50 950 11.00 2 86.00 945 11.25 3 84.00 940 11.75 4 83.00 930 11.75 5 84.50 935 12.00 6 84.00 935 13.00 7 82.00 932 13.25 8 80.00 938 14.50 9 78.50 925 15.00 10 79.00 900 16.50 11 77.00 875 17.00 12 77.50 870 17.50 Excel was used to determine the least squares regression equation. Part of the computer output is shown below. ANOVA df SS MS F Significance F Regression 2 118.8474 59.4237 40.9216 0.0000 Residual 9 13.0692 1.4521 Total 11 131.9167 Coefficients Standard Error t Stat P-value Intercept…George Kyparisis owns a company that manufactures sailboats. Actual demand for George's sailboats during each of the past four seasons was as follows: Season 1 2 3 4Winter 1,400 1,240 1,080 920Spring 1,520 1,420 1,640 1,540Summer 1,000 2,140 2,040 1,960Fall 600 750 650 520 George has forecasted that annual demand for his sailboats in year 5 will equal 6,500 sailboats. Based on the given data and using the multiplicative seasonal model, the demand level for George's sailboats in the spring of year 5 will be nothing sailboats (enter a whole number).
- Consider the following list of activities with time (in months) Activity A B C D E F G H Immediate Predecessor ----- ----- A A,B A,B C D,F E,G Activity Optimistic Most Probable Pessimistic A 4.5 5.0 5.5 B 3.0 3.5 5.0 C 8.5 9.5 10.0 D 4.0 5.5 6.0 E 5.5 6.5 8.0 F 6.0 7.5 8.5 G 5.0 6.0 7.0 H 3.0 4.0 5.0 a) Identify the critical path c) What is the variance of the project completion time? d) What is the probability of completing in 31 months?We are using the average bonuses paid to workers on Wall Street from 2000 to 2016 to fit different auto-regressive models. The data is provided below: Year Bonus($000) 2000 100.5 2001 74.1 2002 60.9 2003 99.9 2004 113.5 2005 149.8 2006 191.4 2007 177.8 2008 100.9 2009 140.6 2010 139.0 2011 111.4 2012 142.9 2013 169.8 2014 160.3 2015 136.8 2016 138.2 a. fit a third-order autoregressive model to the bonuses paid and test for the significance of the third-order autoregressive parameter (slope) (Use a = 0.05.) b. if necessary, fit a second-order autoregressive model to the bonuses paid and test for the significance of the second-order autoregressive parameter (slope). (Use a = 0.05.) c. if necessary, fit a first-order autoregressive model to the bonuses paid and test for the significance of the first-order autoregressive parameter (slope). (Use a = 0.05.) d. if…ch 11. 4 Oxnard Petro, Ltd., has three interdisciplinary project development teams that function on an ongoing basis. Team members rotate from time to time. Every 4 months (three times a year) each department head rates the performance of each project team (using a 0 to 100 scale, where 100 is the best rating). Are the main effects significant? Is there an interaction?