# Question

An article titled “Statistical Approach for the Estimation of Strontium Distribution Coefficient” (Environmental Science & Technology) reports a linear correlation coefficient of 0.55 between the strontium distribution coefficient (mL/g) and the total aluminum (mmol/100 g-soil) for soils collected from the surface throughout Japan. Consider the following data for 10 such samples.

Let Y represent the strontium distribution coefficient and X represent the total aluminum.

a. Find the equation of the line of best fit.

b. Find a 95% confidence interval for b1.

c. Explain the meaning of the interval in part b.

Let Y represent the strontium distribution coefficient and X represent the total aluminum.

a. Find the equation of the line of best fit.

b. Find a 95% confidence interval for b1.

c. Explain the meaning of the interval in part b.

## Answer to relevant Questions

State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test the following statements: a. The slope for the line of best fit is positive. b. The slope of the regression line is not ...“The fast food hamburger remains the single largest seller in fast food restaurants in America” according to the http://www.loseweightgroup.com/ website. McDonald’s, Burger King, etc., are all required to provide ...a. Construct a scatter diagram of the following bivariate data. b. Calculate the covariance. c. Calculate sx and sy. d. Calculate r using formula (13.2). e. Calculate r using formula (13.3). Help Mr. B, the store manager in Exercises 13. 77 and 13. 78 (and Exercises 12.44–12.46), by analyzing the relationship between the numbers of items purchased daily and the total daily sales in the data from the first 10 ...The following data resulted from an experiment performed for the purpose of regression analysis. The input variable, x, was set at five different levels, and observations were made at each level. a. Draw a scatter ...Post your question

0