A state fisheries commission wants to estimate the number of bass caught in agiven lake during a season in order to restock the lake with the appropriate numberof young fish. The commission could get a fairly accurate assessment of theseasonal catch by extensive “netting sweeps" of the lake before and after a season,but this technique is much too expensive to be done routinely. Therefore, thecommission samples a number of lakes and record the seasonal catch (thousands ofbass per square mile of lake area) and size of lake (square miles). A simple linearregression was performed and the following R output obtained.Estimate Std. Errort value Pr (>|t|)(Intercept)2.54630.44275.75130.0000size0.06670.36720.18180.8578Predict the seasonal catch for a lake with an area of 2.5 square miles. (Assume 2.5is within the range of lake areas in the sample.) Round your answer to two decimalplaces.thousand per square mile

Let Y denote the seasonal catch for a lake Let X denote the size of lake The given R-output is,…

Answered: A state fisheries commission wants to…

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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Mandrake Falls High School is providing a weekend course in laboratory techniques to its laboratory students. Of the 200 students enrolled in lab classes at Mandrake, 75 have taken the weekend course. Mandrake is evaluating the course's effectiveness by having its lab instructors record harmful lab "incidents": accidents, misuse of lab equipment, etc. The contingency table below gives a summary of the data that have been gathered so far for Mandrake's 200 lab students. Each student is classified according to two variables: status regarding lab techniques course ("Took the course" or "Didn't take the course") and laboratory performance ("Involved in no incident", "Involved in exactly one incident", or "Involved in 2+ incidents"). In the cells of the table are the respective observed frequencies. Note that three of the cells also have blanks. Fill in these blanks with the frequencies expected if the two variables, status regarding lab techniques course and laboratory performance, are…
Surveys were conducted with every 7 households in Muscogee County, asking individuals to report information on their household, such as age, sex, race, education, income levels, and current health care needs. The purpose of the study was to describe the population of Muscogee County and assess the current health care needs of its constituents. 3. What research design was likely used to conduct this research? a. Case report b. Case series c. Ecological Study d. Cross-sectional (descriptive) e. Cross-sectional (analytic) f. Case-control study g. Retrospective cohort study h. Prospective cohort study i. Randomized clinical trial
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Mariah Jacobsen is the marketing manager at ABC Electronics, a major consumer electronics supplier in the northwest. Over the last five years, sales of the company's flagship product - the Wizer Anonymizer (the WA) - have been 45000, 45500, 44500, 46000 and 44000 units. This rate of sales is considered average for the product over the last twenty years or so. Ms. Jacobsen believes that the distribution of the WA's sales is normal with a standard deviation of 1500 units. If she were asked to make a forecast of next year's sales to upper management, what is the likelihood that she would be correct if she predicts sales between 43000 and 46000?
1. Using the following data: 5568 8 9 10 10 12 15 16 19 20 20 21 24 25 25 30 32 Quartile 1 = Quartile 2 = Quartile 3 =
A state fisheries commission wants to estimate the number of bass caught in a given lake during a season in order to restock the lake with the appropriate number of young fish. The commission could get a fairly accurate assessment of the seasonal catch by extensive “netting sweeps" of the lake before and after a season, but this technique is much too expensive to be done routinely. Therefore, the commission samples a number of lakes and record the seasonal catch (thousands of bass per square mile of lake area) and size of lake (square miles). A simple linear regression was performed and the following R output obtained. Estimate Std. Error t value Pr(>|t|) (Intercept) 2.5463 0.4427 5.7513 0.0000 size 0.0667 0.3672 0.1818 0.8578 If a scatterplot showed a non-linear relationship between the response and explanatory variables, what should be done? O Nothing. Continue the analysis as is. Stop the analysis. Perform a natural log transformation on the response variable first. O Perform a…
Please answer all 4
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