The table shows the U.S. Bureau of Census population data for St. Louis, Missouri. t= years since 1950 20 30 40 44 P= population (thousands) 857 622 453 397 368 a. Plot the data points. b. Find the equation of the regression line and add its graph to your data plot. c. Explain in practical terms the meaning of the slope of the regression line. d. Estimate the population of St. Louis in the year 2002. e. How many years will it take until the population of St. Louis drops to 200,000?

The accompanying data are the caloric contents and the sugar contents​ (in grams) of 11 ​high-fiber breakfast cereals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given​ x-values, if meaningful. If the x-value is not meaningful to predict the value of​ y, explain why not.  Calories, x         Sugar, y 140                      6 200                     10 160                      6 160                      9 170                     10 180                     16 190                     13 210                     18 190                     19 170                     10 170                     10   The equation of the regression line is ŷ =  ______ x + ______ ​(Round the slope to three decimal places as needed. Round the​ y-intercept to two decimal places as​ needed.)      (a) x = 150 cal,  ​ (b) x = 90 cal,   (c) x = 175 cal,   ​(d) x = 208 cal…

A researcher is interested in seeing if there is a relationship the amount of time in minutes a person spends in their car during the day and the number of minutes that person spends listening to music.   Car Time 63 14 241 93 140 3 91 45 22 Music Time 73 16 260 142 206 31 78 47 29   a. Find the equation of the regression line and use it to make a prediction of the dollars purchased by someone who visits the website 4 times.b. Interpret the slope in the context of the problem.c. Interpret the y-intercept in the context of the problem or state why it is not applicable.d. State the null and alternative hypotheses for the hypothesis test of correlation e. Find the pvalue and state your conclusion in the context of the study.

Please work this problem for me. Thank you

The following table shows the reported net sales by Nokia in 2008, 2009, and 2010.   Year    2008    2009    2010x    0    1    2Sales ($ millions)    20    50    60  Find the Equation of the Linear Regression Line. Rounds decimal values to the nearest tenths.

Show your work please.

Use the scatterplot of Vehicle Registrations below to answer the questions Vehicle Registrations in the United States, 1925- 2011 Vehicles millions 300 y = 3.0161x - 5819.5 R? = 0.9695 250 200 150 100 50 1920 -50 1940 1960 1980 2000 2020 Year Write a sentence explaining the value of the slope for this regression line. For every increase in year, the number of vehicle registrations in the US increases by 3.0161 million. For every increase in year, the number of vehicle registrations in the US increases by 5819.5. For every increase in vehicle registrations in the US, the number of years increases by 5819.5. For every increase in vehicle registrations in the US, the number of years increases by 3.0161 million. Registrations (in millions)

Answer letters a to c. Thanks

What is the dollar amount of change in sales for each new year according to the regression (slope) model?  Do not use commas or $ in your answer.

Instructions: The following is the recorded earthquakes on South Carolina from August, 2016 to February, 2017. Use the data to find the residuals. Then draw a residual plot by hand. Use the residual plot to determine if the linear model is the best regression model for this data. Magnitude Depth (km.) 1.7 2.9 1.1 0.8 1.4 1.9 0.7 3.2 0.8 4.3 1.9 4 1.7 6.3 1.9 6.9 1.9 0.9 | 1.1 Source: USGS Residual (Round to nearest tenth) 1.7 -2.2 1.1 -1.8 1.4 -2.0 0.7 -2.2