Which is a correct description of the data in the table? time worked (hours) 8 11 10 5 12 8 earnings ($) 72 99 90 45 108 72 a. the explanatory variable is time worked. the response variable is earnings. the association is positive. b. the explanatory variable is time worked. the response variable is earnings. the association is negative. c. the explanatory variable is earnings. the response variable is time worked. the association is positive. d. the explanatory variable is earnings. the response variable is time worked. the association is negative.

I hate math but the answer is B

At least I think

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;

what are you trying to solve here

step-by-step explanation: