00:01
So in this question, they say that the table shows the yield in bushels per acre and the total production in millions of bushels for corn in a country for selected years since 1950.
00:11
We're letting x represent years since 1900, and we're going to find a logarithmic regression model, y equals a plus b lnx for the yield.
00:22
And then we'll estimate that yield in the year 2026.
00:25
So we're going to head to a calculator and in our stat, we're going to edit, and here in l1, we're going to put those x values.
00:37
So they were 50, 60, 70, 80, 90, 100, and 110.
00:52
And then l2 will put our ys, so 34, 57, 75, 100, 115, 135, and 151.
01:07
151.
01:07
135, and 151.
01:11
And then we're gonna go to stat, calculate, and we're gonna calculate here in number 9, a log regression, an ln regression, and ln regression on l1 and l2, and we're gonna calculate this, and we're getting y equals a plus b, lnx, my a is negative 553 .595.
01:39
It says around one decimal place...