Action Video rents DVDs and VHS movies to its customers. The cost to rent
d, DVD movies, is $3.50 each and the
cost to rent r, VHS movies, is $2.50
each.
Which of these represents the possible
number of DVDs that could be rented for
no more than $20?

what graph

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;

your answer is  

a.

5

step-by-step explanation: