1. Make a box-and-whisker plot of the data. (1 point)
21, 21, 22, 20, 13, 13, 27, 24
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10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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;

okay..i will pick 8!

a reflection across the x axis and a 90 degree rotation left and right.