In the name of ALLAH, the most beneficient, the most merciful

Statistics and Probability (STA301)

Question (select most suitable option)

  An experiment was conducted to estimate the mean yield of a new variety of wheat. A sample of 20 plots gave a mean yield of 2.9, and a 95% confidence interval of (2.48, 3.32). This means:
We are sure the true mean yield of this new variety is between 2.48 and 3.32
We are 95% confident that the true mean yield of this variety is 2.9
We are 95% confident that the true mean yield of this variety is between 2.48 and 3.32
None of the given