The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 39113911 grams and a standard deviation of 434434 grams. If a newborn baby boy born at the local hospital is randomly selected, find the probability that the weight will be less than 46484648 grams. Round your answer to four decimal places.

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;

where are the graphs?

step-by-step explanation: