A group of researchers studied the effect of acid rain on wildlife and collected n = 12 samples from streams in different States. They recorded the pH (X) ofthe water (i.e. units above pH 7), and the BCI, a measure of biological diversity (Y). The data obtained is summarized below.DATA:Observation123456789101112pH above 7 (X)0.670.700.930.951.091.011.291.241.411.561.731.80Units of BCI (Y)14.420.916.225.018.919.820.722.123.924.927.629.7Find the correlation coefficient between pH and BCI (round to the nearest hundredth; place your answer in the box below)

Here we have given the data we have to find the correlation coefficient between ph and BCI…

Answered: A group of researchers studied 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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Question 8
For the following description of data, identify the W's (who and what was measured and when, where, why, and how it was measured), name the variables, specify for each variable whether its use indicates it should be treated as categorical or quantitative, and for any quantitative variable identify the units in which it was measured (or note that they were not provided). After several major ocean oil spills, oil tankers werere designed to have thicker hulls. Further improvements in the structural design have decreased the likelihood of an oil spill and the amount of outflow in the event of a hull puncture. A website reports the length of cleanup time, hull thickness, and cause of puncture for 40 recent major oil spills from tankers and carriers. Question content area bottom Part 1 Who was measured? A. The website B. 40 recent oil spills C. The oil tankers D. This information is not given.
Match the coefficient of determination to the scatter diagram. The scales on the x-axis and y-axis are the same for each scatter diagram. (a) R? = 0.12, (b) R² = 0.98, (c) R² = 1 %3D (a) Scatter diagram Explanatory (b) Scatter diagram II (c) Scatter diagram Explanatory II II Explanatory II aSuods asuodsəy Response
Interpret the following graphs: In the graphs, the number of days are 18.. 1 day is equal to 60 sec. days are taken on x-axis. The mean foraging times are taken on y-axis.
The question is in the first picture, and the formula that may be used is in the second picture.
Please help. The data is in one of the pics. Thank you for your time and effort :)
The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.9 53.5 56.7 63.2 58.6 3.8: 55.6 59.6 52.6 54.5 6.0: 51.2 48.6 53.8 48.9 10.2: 44.3 48.4 41.0 47.9 46.5 In USE SALT Use the F test at level a = 0.05 to test for any differences in true average yield due to the different salinity levels. State the appropriate hypotheses. O Ho: H1 = H2 = !3 = H4 H: all four u's are unequal O Ho: H1 = H2 = H3 = H4 H: at least two u's are unequal O Ho: H1 # Hq # Hz# H4 H: all four u's are equal O Ho: H1* H2 * H3# H4 H: at least two u's are equal Calculate the test statistic. (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
Age, x 16 25 39 45 49 64 70 29 57 22 Systolic blood pressure 109 122 143 132 199 185 199 130 175 118 4. If x is 30 , what would you expect y (in mm ??) to be?
What do yall think is the correct response?
The data found below measure the amounts of greenhouse gas emissions from three types of vehicles. The measurements are in tons per year, expressed as CO2 equivalents. Use a 0.025significance level to test the claim that the different types of vehicle have the same mean amount of greenhouse gas emissions. Based on the results, does the type of vehicle appear to affect the amount of greenhouse gas emissions? Determine the test statistic. F= (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to two decimal places as needed.) What is the conclusion of the test? the null hypothesis. Conclude that the type of vehicleappear to affect the amount of greenhouse gas emissions for these three types.
Existing data (year: 1995) (Observed values) * Age group of drivers Accident Severity 18-30 30-50 50+ Fatal 27 22 40 Grievous 27 15 44 injured Minor 82 60 120 97 Total 89 86 262 injury Total 136 204 437 Source: Office of the Dy. Commissioner of Police (Tra
When water flows across farmland, some soil is washed away, resulting in erosion. An experiment was conducted to investigate the effect of the rate of water flow (liters per second) on the amount of soil (kilograms) washed away. The data are given in the following table: Flow rate 0.31 0.85 1.26 2.47 3.75 Eroded soil 0.82 1.95 2.18 3.01 6.07 Let xx represent the flow rate variable and yy represent the variable for soil eroded. Then \bar x = 1.73, s_x = 1.38, \bar y = 2.81, s_y = 1.99xˉ=1.73,sx=1.38,yˉ=2.81,sy=1.99 Use this to complete the following calculation of the correlation coefficient for these data. r = \frac{1}{n-1}\left[\left(\frac{x_1 - \bar x}{s_x}\right)\left(\frac{y_1 - \bar y}{s_y}\right) + \left(\frac{x_2 - \bar x}{s_x}\right)\left(\frac{y_2 - \bar y}{s_y}\right) + \cdots + \left(\frac{x_n - \bar x}{s_x}\right)\left(\frac{y_n - \bar y}{s_y}\right)\right]r=n−11[(sxx1−xˉ)(syy1−yˉ)+(sxx2−xˉ)(syy2−yˉ)+⋯+(sxxn−xˉ)(syyn−yˉ)]…

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