I need help with this :)

1. -13 degrees

2. $12

3. 6 yards

4. 15 points

Step-by-step explanation:

1. -5 - 8 = -13

2. $100 - $88 = $12

3. 13 - 7 = 6

4. 10 x 2 = 20 - 5 = 15

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;