Sister Stephanie is a zoologist whose specialty is an artic ecosystem located in Antarctica. Her animals of focus have been a cluster of penguins, as well as a small population of silverfish. Over the course of 20 days, she noticed that the cluster of penguins consumed 50 pounds of fish. Part A) Sister Stephanie wanted to predict how much these penguins would consume over 60 days - How many pounds of fish would these penguins consume over 60 days?
Help pl

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

17.08

correct me if i am wrong.

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;

i can answer this if i have the answer choices