i don’t understand what it is asking so i need with the work

$0.72

Step-by-step explanation:

The question is asking for how much an original unknown value changed. To find this we add all the changes positive or negative to find the value of the change over the entire week, the equation is 0.58-1.02-0.93+2.39-0.3=0.72

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

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;