Priya is studying the relationship between year and cereal y…

Priya is studying the relationship between year and cereal yield (kg/ha) in Angola (1992-2023). A simple linear regression analysis yields a slope of 19.90 with SE(b1) = 2.05. Assume the residuals are approximately normally distributed. The sample size is 33. What is the 95% confidence interval for the annual increase in cereal yield per year?

Jade is studying the relationship between year and cereal yi…

Jade is studying the relationship between year and cereal yield (kg/ha) in Afghanistan (2000 -2023). A simple linear regression analysis yields a slope of 47.64, with SE(b1) 6.61. Assume the residuals are approximately normally distributed. The sample size is 24. What is the 95% confidence interval for the annual increase in cereal yield?