1. Hannah sells advertising space for a magazine. She is paid a weekly wage, plus commission on spaces that she sells.
The equation £ = 6s + 380 represents Hannah's earnings, E dollars, in a week that she sells s
advertising spaces.
How many advertising spaces did Hannah sell in a week that she earned $530?​

answer: kljdcdhjbdlchjad oac apoich a

step-by-step explanation:

4444444444444 i think

sites:

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;