3. A new reading program was being evaluated in the fourth grade at an elementary school. A random sample of 35 students was tested on a fixed-length reading passage in order to measure their reading speed. The average reading time of the sample of 35 students was 9.5 minutes with a standard deviation of 2.5 minutes. A. Estimate the mean reading speed for all fourth-grade students in this elementary school. Use a 95% confidence level. B. What is meant by 95% confidence in your interval of part A? Explain fully.

How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). x 3 6 12 20 26 y 60 95 140 160 189 (a) Make a scatter diagram of the data and visualize the line you think best fits the data.   Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website.   (b) Would you say the correlation is low, moderate, or strong?  low moderate     strong Would you say the correlation is positive or negative?  positive negative     (c) Use a calculator to verify that          x = 67,           x2 = 1265,           y = 644,           y2 = 93,546,  and          xy = 10,544.  Compute r. (Round your answer to three decimal places.)  As x increases from 3 to 26 months, does the value of r imply that y should tend to increase or decrease? Explain your answer.  Given our value of r, y should…

please help me answer this for my data analysis class

How to solve this question

Data x y 5 35 10 85 25 100 20 125 25 140       1.  Plot the scatter diagram.   2. List all six of the possible models, equations and their R2values.  3. Which model is the best model?

Can you please help with sub-parts C and D