22. a machine can make 5 miles of ribbon in an hour. graph the length of the ribbon the
machine will make in eight hours. another machine can make 8 miles of ribbon in an
hour. graph the length of the ribbon the machine will make in 8 hours. what is the
difference in length for a 8 hour period between the two machines? write an equation
in slope intercept for each machine.

answer:

step-by-step explanation:

salary

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;