In an environmental study into the wildlife in two comparable lakes, samples of small frogs were taken from each. The frogs were of the samespecies and all of similar ages, each being weighed. Their weights (in g) are given below:WeightLake 1 13.7 13.3 13.8 13.1 15.3 13.5 16.3 13.9 15.3 13.3Lake 2 12.2 13.7 13.6 14.7 11.5 12.7 13.4 14.3 Part d)Provide the P-value of your test to 3 decimal places.0.102

we need to perform a statistical test to compare the weights of the frogs in Lake 1 and Lake 2. We…

Answered: In an environmental study into the…

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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Epistasis is a phenomenon in which one gene controls the expression of another. In one case, a dihybrid cross should yield a 9:3:4 ratio. You collect the following data on mice: black coat: 138 brown coat: 46 white coat: 60 Is there any reason to doubt the ratio of 9 black : 3 brown : 4 white?
Have you ever been frustrated because you could not get a container of some sort to release the last bit of its contents? An article reported on an investigation of this issue for various consumer products. Suppose five 6.0 oz tubes of toothpaste of a particular brand are randomly selected and squeezed until no more toothpaste will come out. Then each tube is cut open and the amount remaining is weighed, resulting in the following data: 0.53, 0.64, 0.41, 0.5, 0.35. Does it appear that the true average amount left is less than 10% of the advertised net contents?Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.)t= P-value =
From the data given below, calculate the gross and net reproduction rates : Age Group Female Population (in thousands) Female Live-births Survival Factor 15-19 1,399 15,133 0.9694 20-24 1,422 94,155 0.9663 25-29 1,521 102,676 0.9632 30-34 1,756 72,490 0.9584 35-39 1,451 31,402 0.9519 40-44 1,689 10,640 0.9424 45-49 1,667 700 0.9279
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Calculate the infant mortality rate (per 1000): Use the data in the table below to calculate the following vital statistics. Vital statistics Total midyear population Number of live births 4250 Total deaths (all causes) Deaths in infants under 1 year of age Deaths due to cancer 100 O 0.1 10 01 0.01 5,000,000 5000 In a clinical trial of 734 subjects treated with medicine A, 29 reported headaches. In a control group of 735 subjects not treated with medicine A, 117 reported headaches. The Number Needed to Treat is equal to: [ 02 09 06 3
Six samples of each of four types of cereal grain grown in a certain region were analyzed to determine thiamin content, resulting in the following data (µg/g). Wheat 5.2 4.4 6.1 6.2 6.6 5.8 Barley 6.5 7.9 6.0 7.6 6.0 5.7 Maize 5.8 4.6 6.4 4.9 6.0 5.2 Oats 8.4 6.2 7.8 7.1 5.4 7.2 USE SALT Does this data suggest that at least two of the grains differ with respect to true average thiamin content? Use a level α = 0.05 test. State the appropriate hypotheses. | H₂: M₁ = H₂ = H3 = H4 H₂: all four μ's are unequal • Ho: M₁ = H₂ = H3 = H4 H₂: at least two μ's are unequal ⒸH₂² H₁ H₂ H3 H4 # H: all four μ's are equal O Ho: M₁ #M₂ #H3 H4 H₂: at least two μ's are equal Compute the test statistic value. (Round your answer to two decimal places.) f = What can be said about the P-value for the test? O P-value > 0.100 O 0.050 < P-value < 0.100 O 0.010 < P-value < 0.050 O 0.001 < P-value < 0.010 O P-value < 0.001 State the conclusion in the problem context. O Reject Ho. There is not significant evidence…
Read the passage on Proportion of College Students and answer the questions carefully to get the correct answers.
In automobile mileage and gasoline-consumption testing, 13 automobiles were road tested for 300 miles in both city and highway driving conditions. The following data were recorded for miles-per-gallon performance. City: 16.7 17.2 16.4 14.9 13.7 15.8 17.3 16.5 16.6 15.8 15.7 15.8 16.7 Highway: 20.0 21.2 18.9 19.2 19.8 18.0 17.8 19.2 19.6 21.7 20.0 19.1 19.3 Calculate the mean, median, and mode for City and Highway gasoline consumption (to 1 decimal). City Highway Mean Median Mode The data are bimodal: and
Studies suggest that women who smoke during pregnancy affect the birth weights of their newborn infants. To study this issue further, a sample of 10 women smokers were asked to estimate the average number of cigarettes they smoke per day. In the following table are their estimates and the birth weight (in kgs) of their child. Average Number of Cigarettes per day Birth Weight of Child (in kilograms) 22 2.91 16 3.27 4 3.68 19 3.14 42 2.32 8 3.82 12 3.45 30 2.95 14 3.00 16 3.68 (b) Use R-Studio to find the least squares estimate of the linear model that expresses the birth weight of a child as a linear function of the average number of cigarettes mom consumes in a day. Use four decimals in each of your answers.Y^i = ? + - Xi(e) A expecting mother, who smokes, claims to smoke an average of 20 cigarettes in a day. Predict the weight of her newborn. Use two decimals in your answer.kilograms(f) The weight of the child born to the expecting mother mentioned in (e) was…
Given the following raw data of tests conducted on the weights of Soya Beans from a Premier Miller, construct a check sheet: 2,559 2,556 2,566 2,546 2,570 2,546 2,565 2,543 2,560 2,560 2,545 2,551 2,546 2,555 2,551 2,554 2,568 2,572 2,550 2,556 2,561 2,560 2,564 2,567 2,551 2,562 2,542 2,549 2,556 2,550 2,561 2,558 2,559 2,557 2,532 2,575 2,551 2,550 2,559 2,565 2,552 2,560 2,534 2,547 2,569 2,559 2,540 2,544 2,550 2,552 2,536 2,570 2,564 2,553 2,558 2,538 2,564 2,552 2,543 2,562 2,571 2,553 2,537 2,551 2,538 2,539 2,569 2,552 2,536 2,532 2,552 2,575 2,545 2,543 2,537 2,547 2,533 2,571 2,545 2,545 2,556 2,551 2,569 2,559 2,534 2,567 2,572 2,558 2,542 2,570 2,542 2,552 2,551 2,543 2,561 2,574 2,553 2,546 2,531 2,563 2,554 2,544 Table 1: Raw Data of Weight of Soya Beans 2,561 2,538 2,568 2,574 2,551 2,560 2,561 2,556 1.1) Compile a tally sheet for the data. 1.2) Determine the cell mid points. 1.3) Draw a Scatter diagram and a Histogram for the data.
Solve the following 1.) The following data were obtained in a study of the relationship between the weight and chest size ofinfants at birth. Weight (lbs) Chest Size (cm) 5.64 29.5 4.41 26.3 9.0 32.2 11.32 36.5 7.08 27.2 8.86 27.7 4.74 28.3 8.82 30.3 7.61 28.7 Ans: a.) r= + 0.77 b.) t = 3.193

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