7. (Use this info for problems 7-10) Find the approximate Expected number of baby Elk to survive to adulthood. A) 1 B) 2 C) 3 D)4 E)5 77. Baby elk Biologists estimate that a randomly selected pg 433 baby elk has a 44% chance of surviving to adulthood. Assume this estimate is correct. Suppose researchers choose 7 baby elk at random to monitor. Let X = the number that survive to adulthood. %3D Your answer 8. For the baby Elk problem above, find the probability that exactly 6 survive A) 2.5% B) 2.8% C) 3.1% D) 95% E) 99.7% Your answer 9. For the baby Elk problem above, find the probability that up 3 survive(X <= 3) ? A) 57% B) 60% C) 63% D) 68% E) 95% Your answer

ch 11 end. 7: In a bumper test, three test vehicles of each of three types of autos were crashed into a barrier at 5 mph, and the resulting damage was estimated. Crashes were from three angles: head-on, slanted, and rear-end. The results are shown below. Research questions: Is the mean repair cost affected by crash type and/or vehicle type? Are the observed effects (if any) large enough to be of practical importance (as opposed to statistical significance)?

In a study conducted by some Statistics students, 73 people were randomly assigned to listen to rap music, music by Mozart, or no music while attempting to memorize objects pictured on a page. They were then asked to list all the objects they could remember. The summary statistics for each group are shown in the table. Complete parts a and b. HA: HM-HRU C. Ho: HM-HR <0 HA: HM-HR=0 ... Count Mean SD HA: HM-HRU D. Ho: HM-HR = 0 HA: HM-HR <0 Rap Mozart The 90% confidence interval for the negative difference in means is (.). (Round to three decimal places as needed.) 33 • 20 10.88 10.15. 3.71 3.04 No Music 20 13.29 4.88 Test the hypothesis. t = -0.78 (Round to two decimal places as needed.) P = 0.7799 (Round to four decimal places as needed.) State your conclusion. Use α = 0.05. Do not reject Ho. There is no evidence that the mean number of objects remembered by those who listen to Mozart is higher than the mean number of objects remembered by those who listen to rap music. b) Now compare…

3Maya Paniagua - L8.8 CW.pdf A%5B"1MCIGLdq5n5mqZamzDMo7KIONT_P4belS"%5D%2C"action"% 3.8 CW.pdf 100% 10. If GF 15 and CG = 23, find CD. F.