Select the correct answer from each drop-down men. A jewelry artisan has determined that her revenue, y, each day at a craft fair is at most -0.5x2 + 302, where x represents the number
of necklaces she sells during the day. To make a profit, her revenue must be greater than her costs, 2.1 + 150.
Write a system of inequalities to represent the values of x and y where the artisan makes a profit. Then complete the statements.
of this system.
The point (30,230) is
The point (10,300) is
of this system

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;