If your income of $1500 increased by 15%, find the amount it has increased by

it has increased by $225

Step-by-step explanation:

=1500*15/100

=225

total income is $1725 and it has increased by 225

$1725

Step-by-step explanation:

Increment=15% of $1500

=15/100×$1500

=15×15

=$225 increased

Present amount=$1500+$225

=$1725

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;