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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.2: Representing Data

Problem 10PPS

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psda

The data (Table 1) show the lists of sugar consumption (kg per capita) and the number of
diabetes patients (per million people) for selected countries.
Table 1: Sugar consumption and diabetes patients
Sugar
diabetes patients
5
6
4
4
5
6
9
3
2
11
a) Construct a scatter plot, and comment on the features of the plot.
b)
Does there appear to be a linear relationship between the two variables? How would you
characterize the relationship?

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Does Table 1 represent a linear function? If so, finda linear equation that models the data.
To investigate the relationship between yield of soybeans and the amount of fertilizer used, a researcher divides a field into eight plots of equal size and applies a different amount of fertilizer to each plot. The table shows the yield of soybeans and the amount of fertilizer used for each plot. A scatterplot of the data confirms that there is a linear association. Predict the yield of soybeans for 2.75 pounds of fertilizer. Round answer to the nearest whole number. Do not include the label in your answer. Amount of Fertilizer (in pounds) Yield of soybeans (in pounds) 1 25 1.5 21 2 27 2.5 28 3 36 3.5 35 4 32 4.5 34 im not sure how to start with this
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A student working on a physics project investigated the relationship between the speed and the height of roller coasters. The student collected data on the maximum speed, in miles per hour, and the maximum height, in feet, for a random sample of 2121 roller coasters, with the intent of testing the slope of the linear relationship between maximum speed and maximum height. However, based on the residual plot shown, the conditions for such a test might not be met.
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Assume we have data demonstrating a strong linear link between the amount of fertilizer applied to certain plants and their yield. Which is the independent variable in this research question?
The attached cost-output data were obtained as part of a study of the economies of scale in operating a charter high school in Wisconsin:What type of cost-output relationship (linear, quadratic, cubic) is suggested by these statistical results?
The Admission director for a college far from mart and town believes that an inverse relationship exists between a private college's average discount rate(determined by the average amount of scholarships students receive) and the annual yield (the percentage of admitted students who actually attend). The Director's independent variable is a private college's discount rate measured as a percentage, and the dependent variable is the college's annual yield measured as a percentage. The following results were obtained for a sample of 30 private colleges: x- Discount rate(percentage) - range: 35 to 72 percent y- Annual Yield(percentage) - range: 12 o 81 percent Σxi = 1612 Σyi = 898 Σxiyi = 44,377 Σxi2 = 89,790 Σyi2 = 35,704 a. Calculate the sample regression line's slope estimate. Interpret the sample regression line's slope estimate. b. Calculate the sample regression line's intercept estimate. Interpret the sample regression line's intercept estimate. Assume the following sum of…

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