# Question: From Problem 13 we know that a 95 confidence interval

From Problem 13, we know that "a 95% confidence interval for the mean age of all U.S. millionaires is from 54.3 years to 62.8 years." Decide which of the following sentences provide a correct interpretation of the statement in quotes. Justify your answers.

a. Ninety-five percent of all U.S. millionaires are between the ages of 54.3 years and 62.8 years.

b. There is a 95% chance that the mean age of all U.S. millionaires is between 54.3 years and 62.8 years.

c. We can be 95% confident that the mean age of all U.S. millionaires is between 54.3 years and 62.8 years.

d. The probability is 0.95 that the mean age of all U.S. millionaires is between 54.3 years and 62.8 years.

a. Ninety-five percent of all U.S. millionaires are between the ages of 54.3 years and 62.8 years.

b. There is a 95% chance that the mean age of all U.S. millionaires is between 54.3 years and 62.8 years.

c. We can be 95% confident that the mean age of all U.S. millionaires is between 54.3 years and 62.8 years.

d. The probability is 0.95 that the mean age of all U.S. millionaires is between 54.3 years and 62.8 years.

## Answer to relevant Questions

In a 1903 paper, Abigail Camp Dimon discussed the effect of environment on the shape and form of two sea snail species, Nassa obsoleta and Nassa trivittata. One of the variables that Dimon considered was length of shell. She ...Answer true or false to the following statement, and give a reason for your answer: If a 95% confidence interval for a population mean, μ, is from 33.8 to 39.0, the mean of the population must lie somewhere between 33.8 and ...Must the variable under consideration be normally distributed for you to use the z-interval procedure or t-interval procedure? Explain your answer. Because many industrial wastes contain nutrients that enhance crop growth, efforts are being made for environmental purposes to use such wastes on agricultural soils. Two researchers, M. Ajmal and A. Khan, reported their ...Previous studies have shown that urban bus drivers have an extremely stressful job, and a large proportion of drivers retire prematurely with disabilities due to occupational stress. These stresses come from a combination of ...Post your question