Assume that you have 12 well plates available for culturing cells. At the 24 hour mark, you collect an image from 7 of the wells, count the number of subregions in the image that are populated with cells and determine you have a mean of 143.25 subregions and a standard deviation of 42.85 subregions. There are problems with the image archival that prevent collection from all wells. At the 48 hour mark, you repeat the procedure and determine you have a mean of 219.5 subregions and a standard deviation of 53.57 subregions from 8 of the wells. What is the standard normal deviate for the difference in the populations from day 1 to day 2? -25.316

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Assume that you have 12 well plates available for culturing cells. At the 24 hour mark, you collect an image from 7 of the wells, count the number of subregions in the image that are populated with cells and
determine you have a mean of 143.25 subregions and a standard deviation of 42.85 subregions. There are problems with the image archival that prevent collection from all wells. At the 48 hour mark, you
repeat the procedure and determine you have a mean of 219.5 subregions and a standard deviation of 53.57 subregions from 8 of the wells.
What is the standard normal deviate for the difference in the populations from day 1 to day 2?
-25.316
What is the lower bound on the 95% confidence interval?
-130.9418
What is the upper bound on the 95% confidence interval?
-21.5582
Is the probability that you can reject the null hypothesis that the time interval from day 1 to day 2 had no influence on the number of subregions in the images collected from your wells higher than 95%(Y/N)?
Y
Transcribed Image Text:Assume that you have 12 well plates available for culturing cells. At the 24 hour mark, you collect an image from 7 of the wells, count the number of subregions in the image that are populated with cells and determine you have a mean of 143.25 subregions and a standard deviation of 42.85 subregions. There are problems with the image archival that prevent collection from all wells. At the 48 hour mark, you repeat the procedure and determine you have a mean of 219.5 subregions and a standard deviation of 53.57 subregions from 8 of the wells. What is the standard normal deviate for the difference in the populations from day 1 to day 2? -25.316 What is the lower bound on the 95% confidence interval? -130.9418 What is the upper bound on the 95% confidence interval? -21.5582 Is the probability that you can reject the null hypothesis that the time interval from day 1 to day 2 had no influence on the number of subregions in the images collected from your wells higher than 95%(Y/N)? Y
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