Question 8 1 out of 1 points A medical association randomly selected 10 trauma surgeons and 10 medical researchers and asked them how flexible their schedule is on a 1 (not at all flexible) to 9 (very flexible) scale. The data are summarized below: Mean | Variance Trauma surgeons 2 1 Medical researchers | 7 3 Select the statement that accurately reflects these results: (Hint: For this problem, the key is in the variance and in knowing what the variance represents! No calculations are necessary.) Question 9 1 out of 1 points A sample of data has a standard deviation of 8. If you were to multiply all of the scores in the data set by factor (or constant) of 22, what would the new standard deviation be? (Hint: The "Working with Constants in Equations” document under Instruction Materials will be helpful to you in answering this question.) Question 10 1 out of 1 points Select the statement that is false. Question 11 1 out of 1 points Along with the mean, which of the following completely characterizes a standard normal distribution? (Hint: Refer to page 1 of the Module 4 course notes as well as section 6.2 of Howell, 7th edition, and section 8.3 of Utts, 3rd edition.) Thursday, February 15, 2024 8:38:48 AM EST «— OK
