Will give brainlist.
trevor is using pieces of wood that are 8.3 feet long to frame a garage. he has a total of 149.4 feet of wood. 8.3x= 149.4
how many 8.3 foot long pieces of wood does trevor have
a. 19 pieces
b. 18 pieces
c. 17 pieces
d. 20 pieces

B:18 as you divide the 149.4 by 8.3

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;