13 saci cu cartofi și 18 saci cu ardei gras cântăresc 300 kg. 18 saci cu cartofi și 18 saci cu ardei gras cântăresc 360 kg. Cât cântărește un sac cu cartofi? Dar unul cu ard zi gras?
7 va rog am nevoieee​

∠cbe and ∠deb are same-side interior angles.

i took the test

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;

one set of data has more variation than the other. hope this !