You car While on a business trip to Greenville, Tisha
treated her co-workers to a meal that cost
$100. Tisha knew that when the bill came,
she would need to pay Greenville sales tax
of 9% and would want to leave a 20% tip on
the original $100. Including tax and tip, how
much did Tisha's meal cost?

tisha treated her co workers with 129

i believe the answer to be 48

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;