Refer to the previous problem (Practice Problem 9).

a. Using an approximate method, provide a rough 95% confidence interval for the population mean.

b. Provide an interpretation of the interval you calculated in part (a).

Data from problem 9

One of the great discoveries of biology is that organisms have a class of genes called “regulatory genes,” whose only job is to regulate the activity of other genes. How many genes does the typical regulatory gene regulate? A study of interaction networks in yeast (S. cerevesiae)

came up with the following data for 109 regulatory genes (Guelzim et al. 2002).

Transcribed Image Text:

Number of genes regulated 11 22 33 44 55 66 77 88 99 1010 1111 1212 Frequency 2020 1010 77 77 88 88 55 22 44 44 33 44