David's company reimburses his expenses on food, lodging, and conveyance during business trips. the company pays $60 a day for food and lodging and $0.65 for each mile traveled. david drove 600 miles and was reimbursed $3390. part a: create an equation that will determine the number of days x on the trip (3 points). part b: solve this equation justifying each step with an algebraic property of equality. (6 points). part c: how many days did david spend on this trip?

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;

i think the answer would be c