You decide to buy some berries as a surprise for your aunt from the local farmer’s market. however, when you arrive, you see that the market carries blackberries, blueberries, raspberries, and strawberries. you know one of them is her favorite, but you cannot remember which one. what is the probability that you will choose the right type of berry at random? a. 0.25 b. 0.40 c. 2.5% d. 4.0%

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;