What is the answer to this ? Explanation please ! Help ASAP

-3

Step-by-step explanation

two negatives equal positive. The answer is a positive number, so we need another negative number to multiply to -3. we know that 3*8=24, so what minus 5 equals -8?

-3-5=-8

-3*(-8)=25

distributive property

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;

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