You measure the increase in culture growth following exposure to 5 different lev

Question

You measure the increase in culture growth following exposure to 5 different levels (A-E) of growth factor. The overall standard deviation from all cultures you evaluate is 16.709569159393. You use different numbers of cultures for the different exposures and identify the following means and standard deviations. You measure the following growth changes, which are simply percent changes from control:

Growth factor A --- mean:32.5 standard deviation:5 number of cultures:13

Growth factor B --- mean:37 standard deviation:8.6 number of cultures:11

Growth factor C --- mean:48 standard deviation:12.7 number of cultures:11

Growth factor D --- mean:55.5 standard deviation:24.3 number of cultures:14

Growth factor E --- mean:69 standard deviation:19.9 number of cultures:19

Compute the total sum of squares ______

Please help!

Explanation / Answer

Growth factor A --- mean:32.5 standard deviation:5 number of cultures:13

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