Probability in case of a randomly selected sample

Reference no: EM1319105

Spots and Achilles Tendon injuries Some sports, such as basketball and tennis, put participants at risk for Archilles tendinopathy (AT), an inflammation and thickening of the Achilles tendon. A study in the American Journal of Sports Medicines looked at the diameter in mm of the affected and non affected tendons for patients who participated in these types of sports activities. Suppose that the Achilles tendon diameters in the general population have a mean of 5.97 millimeters (mm) with a standard deviation of 1.95 mm.

a. What is the probability that a randomly selected sample of 31 patients would produce an average diameter of 6.6 mm or less for the non affected tendon?

b. When the diameters of the affected tendon were measured for a sample of 31 patients, the average diameter was 9.80. If the average tendon diameter in the population of patients with AT is no different than the average diameter of the non-affected tendons (5.97mm) what is the probability of observing an average diameter of 9.80 or higher?

c. What conclusions might you draw from the results in part B?

Reference no: EM1319105

Questions Cloud

Design strategies for project steering : Suppose that an analysis team did not generate alternative design strategies for consideration by a project steering committee or client. What might the consequences be of having only one design strategy?

Determining mean of probability distribution : Determine the mean and standard deviation of following probability distribution.

Estimate an average amount of sick leave per employee : A certain firm specializing in the manufacture and sale of free time clothing has 80 retail stores in Florida and 140 in California. With each state as a stratum, the firm wishes to estimate average sick-leave time per employee for the past year

Solve for the unknown variable : Solve for the unknown variable

Probability in case of a randomly selected sample : Determine the probability that a randomly selected sample of 31 patients would produce an average diameter of 6.6 mm or less for the non affected tendon?

What the equilibrium interest rates for the federal funds : Elucidate what the equilibrium interest rates for the federal funds rate the government bond rate also the private bond rate are also Illustrate what the equilibrium level of income is.

Solve the unknown variable : Solve the unknown variable

Approximation the total number and bound on the error : A company auditor was interested in estimating the total number of travel vouchers that were incorrectly filed. In a SRS of size n =50 oft of the group of N = 250, were filed incorrectly.

Relative frequency and bar chart : Perform a study to compare the characteristics of patients discharged against medical advice from the institution

User Account

All Pages