Five breeds of cattle B1, B2, B3, B, B5 were fed on four different rations R1, R,,R3, R4. Gains in weight in kg. over a given period were recorded and given below:4B1B2B3B4B51.92.22.61.82.1R1R2R32.51.92.32.62.21.71.92.22.02.1R42.11.82.52.32.4Is there a significant difference between (i) breeds and (ii) rations?

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Answered: Five breeds of cattle B1, B,, B2, B4,…

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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Students apply for admission to different academic programs within a college. Because of space, each program can only accept a limited number of students. The table below shows the acceptance data for a selection of majors in the college. Acceptance Status Accepted Rejected Total College Major Chemistry 72 18 90 Business 65 35 100 Spanish 45 15 60 Total 182 68 250 For the majors listed here, what proportion of students were rejected?
David E. Brown is an expert in wildlife conservation. In his book The Wolf in the Southwest: The Making of an Endangered Species (University of Arizona Press), he records the following weights of adult grey wolves from two regions in Old Mexico. Chihuahua region: x, variable in pounds 86 75 91 70 79 80 68 71 74 64 Durango region: x2 variable in pounds 68 72 79 68 77 89 62 55 68 68 59 63 66 58 54 71 59 67 (a) Use a calculator with mean and standard deviation keys to calculate x1, S1, X2, and s3. (Use 2 decimal places.) X1 X2 S2 (b) Let uj be the mean weight of the population of all grey wolves in the Chihuahua region. Let µz be the mean weight of the population of all grey wolves in the Durango region. Find a 90% confidence interval for u - µ2. (Use 2 decimal places.) lower limit upper limit (c) Examine the confidence interval and explain what it means in the context of this problem. Does the interval consist of numbers that are all positive? all negative? of different signs? At the 90%…
Twelve goats were fed on diet A and fifteen on diet B. Gain in weight of each goat after a month is given below: Diet A Diet B 15.0 32.0 30.0 25.0 28.0 38.0 13.0 29.0 24.0 37.0 36.0 36.0 27.0 26.0 20.0 21.0 17.0 29.0 23.0 30.0 25.0 20.0 19.0 21.0 30.0 27.0 28.0 Test the assumption that there is no significance difference on weight on goats by using diet A and diet B. Explain the results in detail and also state on the basis result that which diet is better to increase the weight of goat.
Find the number of people living with AIDS per thousand residents in each region by dividing the number of people living with AIDS by the population in thousands. Region AIDS Rank Cases Population Population (thousands) AIDS per 1000 population A 72,471 1 19,206,132 19,206 3.77 B 65,139 2 36,453,357 36,453 nothing C 48,007 3 18,200,006 18,200 nothing D 31,186 4 23,909,187 23,909 nothing E 18,072 5 12,430,135 12,430 nothing F 6,127 6 594,514 595 nothing (Round to two decimal places as needed.)
In a student's French class, the final grade is based on four categories. The categories, grades in percentages), and weights are shown in this table. Category Tests Labs Assignments Final Exam Grade % Weight % 44 30 52 7 58 14 85 49 Compute a weighted average to determine the student's overall final grade in the course. Convert the weight percentages to decimals before multiplying them times the grades. Record the grade below as a percentage. Round accurately to two decimal places. Overall Grade: %
Twelve goats were fed on diet A and fifteen on diet B. Gain in weight of each goat after a month is given below: Diet A Diet B 15.0 32.0 30.0 25.0 28.0 38.0 13.0 29.0 24.0 37.0 36.0 36.0 27.0 26.0 20.0 21.0 17.0 29.0 23.0 30.0 25.0 20.0 19.0 21.0 30.0 27.0 28.0 Test the assumption that there is no significance difference on weight on goats by using diet A and diet B. Explain the results in detail and also state on the basis result that which diet is better to increase the weight of goat. Answer:
Enter the ranks for the rates of AIDS patients per 1000 population, using 1 for the largest value and 6 for the smallest. Region AIDS Rank Cases Population AIDS per 1000 population Rank Rate A 72,471 1 19,206,132 3.77 ▼ 3 2 4 1 5 6 B 65,139 2 36,453,357 1.79 ▼ 3 6 4 1 2 5 C 48,007 3 18,200,006 2.64 ▼ 4 5 6 3 1 2 D 31,186 4 23,909,187 1.30 ▼ 2 6 3 4 5 1 E 18,072 5 12,430,135 1.45 ▼ 5 6 3 4 2 1 F 6,127 6 594,514 10.30 ▼ 3 5 2 4 6 1
Errors in medical prescriptions occur relatively frequently. In a study, two groups of doctors had similar err rates and one group switched to e-prescriptions while the other continued with hand-written prescriptions. C year later, the number of errors was measured. The results are given in the two-way table. No Error Error 254 Electronic 3594 Written 1478 2370 a). Fill in the row and column totals. b). What proportion of all the prescriptions had errors in them? c). What proportion of electronic prescriptions had errors in them? d). What proportion of written prescriptions had errors in them? e). What proportion of the prescriptions with errors were written prescriptions?
2. Review Ethan's work below. What mistakes did Ethan make? Sample Student Work: Ethan 3x=y 4x ty = 70 3x+y=0 4x+y=20 7x + 2y = 70 x=53 7+5 = 35 351-2y = 70 2y = 35 X=6 = 17-5- must be a whole number 7x6 = 42 42+2y = 70 2y = 28 y = 14
watermelon patch produces watermelons naturally (no fertilizer) and then with nemical fertilizer. The weights of watermelons produced by 12 plants are shown below: No Fertilizer 26.6 19.5 18.9 21. 3 21. 18.1 26. 21. 22. 24. 23. 20. 1 6 8 Fertilizer 28.3 21.9 20.4 24. 20.0 28. 1 25. 24. 24. 26. 26. 24. 1 2 -1.7 -2.4-1.5 3.2 Difference -1.9 1.9 3.6 2.5 2.3 2.0 3.3 3.4 a) At the 0.05 significance levels, test the claim that the mean weight of watermelons with the use of fertilizer is greater than the mean weight of watermelons without fertilizer. Confirm your answer using the p-value method. b) Construct a 95% confidence interval for the difference in the weights.
A health-conscious company decides to make a trail mix out of almonds, dried cranberries, and chocolate-covered cashews. The nutritional information for these items is shown in the table below. Almonds Cranberries Cashews (per 10 pieces) (per 10 pieces) (per 10 pieces) Fat (g) 6. 0,02 Protein (g) 2 3.5 Carbohydrates (g) 8 5.5 For the "hiking" mix, there are 1,000 total pieces of mix. The total amount of protein is 55 g, and the total amount of fat is 131.6 g. If there are the same number of almonds as cashews, how many pieces of each item are in the trail mix? almonds pieces cranberries pieces cashews pieces Additional Materials
The table shows the price and number of pieces sold for a total of three products. Use the Laspeyres composite index to find out how the number of pieces sold before Christmas has changed compared to November. number of pieces price product NovemberDecemberNovemberDecember 1 98 112 105 125 2 131 275 159 100 3 95 114 110 100 а. 1,27 b. 1,64 с. 1,52 d. 0,84 Zrušit mou volbu

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