A pediatrician has found that the heights of their patients follow a normal distribution with mean u = 40 inches and standard deviation o = 10.2 inches. Each day the doctor sees 15 patients, which can be considered a
representative sample of the doctor's patients Each of their heights is recorded and the mean is calculated
(a) Calculate the mean and standard deviation of the sampling distribution o for SRSs of size 12.
(b) Find the probability that the mean height is greater than 48 2 inches.

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?