Question Determine the quadratic regression for the data set below. (2, 762), (5, 939), (7, 1177), (10, 1714), (12, 2192), (15, 3089)

A study was done to look at the relationship between number of vacation days employees take each year and the number of sick days they take each year. The results of the survey are shown below.   Vacation Days 5 15 13 3 9 0 3 7 7 14 4 Sick Days 5 5 1 5 4 9 9 6 5 3 9 Use the model to predict the number of sick days taken for an employee who took 3 vacation days this year.Sick Days = ? (Please round your answer to the nearest whole number.)   Interpret the slope of the regression line in the context of the question:   As x goes up, y goes down. The slope has no practical meaning since a negative number cannot occur with vacation days and sick days. For every additional vacation day taken, employees tend to take on average 0.40 fewer sick days. Interpret the y-intercept in the context of the question: The y-intercept has no practical meaning for this study. If an employee takes no vacation days, then that employee will take 8 sick days. The average number of sick days is…

The table shows the national expenditures for health care in billions, in a country for the selected years from 1990 to 2020.  Given the projection cost for the year 2002, identify the type of regression point.   Year                      Exprenditures ($billions) 1991                        1020 1994                         1356 1998                         1984 2004                          2984 2009                           3374 2016                           4765 2020                            5937   Interpolation Extrapolation Neither Both

using the excel data ...     College Student Weekly Earnings in Dollars (n = 5) Hours Worked (X) Weekly Pay (Y) (xi - x̅)2 (yi - y̅)2 (xi - x̅)(yi - y̅) 11 95       16 173       22 210       18 157       30 270                 x̅=?????? y̅=??????? SSxx SSyy SSxy

q3: looking for assistance

8. Magazine Sales The following table shows the income, measured in thousands of dollars, from sales of a certain magazine at the start of the given year.

Ozone levels (in parts per billion, ppb) were recorded at sites in New Jersey monthly between 1926 and 1971. Here are boxplots of the data for each month The month of Ozone (ppb) 440- 400- The month of 360- 320- 280- 240 1 L TH OHH OHH a) In what month was the highest ozone level ever recorded? The highest ozone level ever was recorded in b) Which month has the largest IQR? c) Which month has the smallest range? • HIH • has the largest IQR. HOH O HH 2 3 4 5 6 7 8 9 Month has the smallest range. d) Write a brief comparison of the ozone levels in January and June. Choose the correct answer below. OA. The median ozone level in June was slightly lower than the median ozone level in January and the IQR was significantly smaller. OB. The median ozone level in June was slightly higher than the median ozone level in January, but the IQR was significantly smaller. OHH OC. The median ozone level in June was slightly lower than the median ozone level in January, but the IQR was significantly…

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Score    GPA    Hours    Absences    Gender78    3.15    3.0    4    Female75    2.71    4.0    1    Female79    3.57    3.5    2    Male85    3.26    6.5    0    Female85    3.75    2.0    0    Female84    3.20    4.5    3    Female85    3.16    5.0    3    Male80    3.35    1.5    0    Female74    2.75    3.5    6    Male81    3.04    6.5    1    Male76    2.53    3.0    0    Female85    2.92    6.0    1    Male