A. 1. The cost renting a car is $0.20 per mile and a 60 dollar up-front fee. Which of the following
equations represents the total cost, c, in dollars for m miles of driving?
c = 0.20(60m)
b. c = 0.20m + 60
60m
C. C=
0.20
d. c=
60
0.20

true

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;