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13 Nov 2019
PLEASE. Show all work. MT 423 EXAM II 18. Suppose that a quality inspector counts the number of chocolate chips is the cookies of two different brands of cookies and gets the following results. BRAND A 18 23 25 30 15 20 23 24 22 28 15 22 24 26 19 BRAND B 20 21 27 27 19 22 23 26 27 25 20 29 24 25 20 (a) (2 points) Find the mean of each group. (b) (2 points) Find the standard deviation of each group. (c) (4 points) Find a 95% confidence interval of the difference of the two means assume the variables are normally distributed and have the different variances. Does there appear to be a significant difference.
PLEASE. Show all work.
MT 423 EXAM II 18. Suppose that a quality inspector counts the number of chocolate chips is the cookies of two different brands of cookies and gets the following results. BRAND A 18 23 25 30 15 20 23 24 22 28 15 22 24 26 19 BRAND B 20 21 27 27 19 22 23 26 27 25 20 29 24 25 20 (a) (2 points) Find the mean of each group. (b) (2 points) Find the standard deviation of each group. (c) (4 points) Find a 95% confidence interval of the difference of the two means assume the variables are normally distributed and have the different variances. Does there appear to be a significant difference.
Elin HesselLv2
9 Sep 2019