Mathematics, 27.11.2019 20:31 swelch2010
Use the following information for the next four questions. a city health department wishes to determine whether the mean bacteria count per unit volume of water at a lake beach is within the safety level of 200. a researcher collected ten water samples of unit volume and found the bacteria counts to be: 175, 190, 207, 193, 184, 204, 205, 193, 196, 180the sample mean of the observations is 192.7 and the sample standard deviation is 10.81. the bacteria counts are normally distributed. we want to test the null hypothesis that the mean bacterial count ( µ ) is 200 against the hypothesis that it is less than 200 (where there is no cause for concern).
Answers: 2
Mathematics, 21.06.2019 19:00
Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet
Answers: 2
Mathematics, 21.06.2019 19:30
[15 points]find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3) ÷ (x^2 + 2x - 8) (x^2 + 6x + 8)
Answers: 1
Mathematics, 21.06.2019 22:00
In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.
Answers: 3
Use the following information for the next four questions. a city health department wishes to determ...
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