The composition of the earth’s atmosphere during prehistoric times can be measured from trapped bubbles.  Nitrogen measurements were made on 32 samples with a mean of 71 and a sample standard deviation of 5.   If today’s atmosphere’s nitrogen content is 78, state a null and alternate hypothesis concerning changes in the earth’s atmosphere.                            Ho:                           Ha:         Which test would you use to evaluate this study?   Test your hypothesis by selecting an a level:   Test and report your P-value                 What conclusions did you reach?                  Do you have any issues with the t test?

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A: Given Mean=6.42 Standard deviation = 1.07 By Empirical rule

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Q: MAT 2100 Final Exam STUDY GUIDE Skip to Main Content Question 31 of 40 (1 point) | Question Attempt:…

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Q: Does the average Presbyterian donate less than the average Catholic in church on Sundays? The 51…

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A: We have given that  Sample size=n=40 Xbar=69.8 S=18 mu=62 Note:According to Bartleby Expert…

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A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: Currently patrons at the library speak at an average of 60 decibels. Will this average decline after…

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