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Turn in on Tuesday November 12th for 2 points. Show your work for full credit Name_________________ID___________ Cosmic Radiation Cosmic radiation levels rise with increasing altitude, prompting researchers to consider how pilots and flight crews are affected by increased exposure to cosmic radiation. Space Medicine and medical Engineering (2002) reported a mean annual cosmic radiation dose of 219 mrems and use a population standard deviation, = 35 for a sample of flight personnel of Xinjiang Airlines. Suppose that this mean was based on a random sample of 100 flight crew members. 1. Using the cosmic radiation information from above what would you conclude using a 99% CI? Show work in computing a 99% CI. 2. Using the cosmic radiation information from above what would you conclude using a 90% CI? Show work in computing a 90% CI. 3. Using the cosmic radiation information from above how would the 95% CI change if the sample size was 500? Show work in computing a 95% CI and answer in one or two sentences.

Date Posted: 09/11/2013
Category: Business
Due Date: 11/11/2013
Instruction
Turn in on Tuesday November 12th for 2 points. Show your work for full credit Name_________________ID___________ Cosmic Radiation Cosmic radiation levels rise with increasing altitude, prompting researchers to consider how pilots and flight crews are affected by increased exposure to cosmic radiation. Space Medicine and medical Engineering (2002) reported a mean annual cosmic radiation dose of 219 mrems and use a population standard deviation, = 35 for a sample of flight personnel of Xinjiang Airlines. Suppose that this mean was based on a random sample of 100 flight crew members. 1. Using the cosmic radiation information from above what would you conclude using a 99% CI? Show work in computing a 99% CI. 2. Using the cosmic radiation information from above what would you conclude using a 90% CI? Show work in computing a 90% CI. 3. Using the cosmic radiation information from above how would the 95% CI change if the sample size was 500? Show work in computing a 95% CI and answer in one or two sentences.
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