Atruck that can carry no more than 7700 lb is being used to transport refrigerators and upright pianos. each refrigerator weighs 200 lb and each piano weighs 475 lb. write and graph an inequality to show how many refrigerators and how many pianos the truck could carry. will 19 refrigerators and 8 pianos overload the truck? explain.

damm bro the struggle

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;