13. A botanist is interested in testing Hap= 3.5 cm versus H: > 3.5, where the mean petal length of one variety of flowe
Posted: Wed May 11, 2022 8:11 pm
13. A botanist is interested in testing Hap= 3.5 cm versus H: > 3.5, where 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. (E) Not enough information is available to answer the question. 1.65