A botanist is interested in testing H0: μ = 3.5 cm versus Ha: μ > 3.5, where μ = the mean petal length of one variety of flowers. A random sample of 50 petals gives significant results at a 5 percent level of significance. Which of the following statements about the confidence interval to estimate the mean petal length is true?
(A)The specified mean length of 3.5 cm is within a 90 percent confidence interval. (B)The specified mean length of 3.5 cm is not within a 90 percent confidence interval. (C)The specified mean length of 3.5 cm is below the lower limit of a 90 percent confidence interval. (D)The specified mean length of 3.5 cm is below the lower limit of a 95 percent confidence interval.
B