Little taehyung found a block of iron, he finds out that its density is 7.8g/cm^3. He goes running to RM and Jin and asks, what is the mass of 5cm^3 of it?
But RM lost his son koya so didn't have any time to answer, and Jin was busy eating
Can you help little taehyung answer his question?
Pleeease?

mean, 40.6

step-by-step explanation:

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;