Mr. hann is trying to decide how many new copies of a book to order for his students. each book weighs 6 ounces.

which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces?

(–3, –18)
(–0.5, –3)
(0, 0)
(0.5, 3)

i got 10.28 but that rounds up to 10.3

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;