Jesse has a balance of $1200 on a credit card with an apr of 18.7%,
compounded monthly. about how much will he save in interest over the
course of a year if he transfers his balance to a credit card with an apr of
12.5%, compounded monthly? (assume that jesse will make no payments or
new purchases during the year and ignore any possible late payment fees.)
o a. $181.46
o b. $117.85
o c. $87.33
o d. $85.77

huh? im pretty sure it is in 199

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;