Data on 4100 college graduates show that the mean time required to graduate with a bachelor’s degree is 5.16 years with a standard deviation of 1.67 years. Use the single value to estimate the mean time required to graduate graduates. Also, find the 95% confidence interval for the mean time required to graduate for all college graduates. The mean time required to graduate for all college graduates is approximately years.

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample