Stickers are sold in different sized packs. the dot plots show the different sized packs of stickers sold at a store during two days. both dot plots have a mean absolute deviation (mad) of 5. each dot represents a single purchase. which statement correctly compares the means of the data for stickers sold in both days? a. there is not enough information given to compare the means of each day's data. b. the mean of day 1's data is the same as the mean of day 2's data. c. the mean of day 1's data is more than the mean of day 2's data. d. the mean of day 2's data is more than the mean of day 1's data.

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im not sure

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;