The distribution of serum cholesterol values

Assignment Help Physics

Reference no: EM13910629

Suppose the distribution of serum cholesterol values in undergraduate men is approximately normally distributed with mean μ = 190 mg/dl and standard deviation σ = 40 mg/dl.

a) What is the probability of selecting someone at random from this population who has a cholesterol value that is less than 180?

b) You take a simple random sample of n = 49 individuals from this population and calculate the mean cholesterol of the sample. Describe the sampling distribution of x-bar?

c) Regarding the mean derived from a sample of n = 49, what is the probability of getting a sample mean that is less than 180? Hint: (Determine P(x-bar ≤ 180).

Reference no: EM13910629

Questions Cloud

What is the probability : In an undergraduate statistics class of 80,10 of the students are,actually, graduate students.If 5 students are chosen at random from the class, what is the probability

Calculate the probability that fewer of randomly selected : Calculate the probability that 45 percent or fewer of 400 randomly selected German adults would have purchased blue jeans in the past three months.

Describe a typical problematic feature of a curve : Describe a typical problematic feature of a curve fitted with polynomial regression using polynomials of degree 10.

Random variables associated with the number of patients : In a situation similar to one you may have seen before, there is a clinic with two physicians, Dr. X and Dr. Y, and each doctor can be scheduled to see at most 3 patients per hour. The joint probability mass function is given by the following table.

The distribution of serum cholesterol values : Suppose the distribution of serum cholesterol values in undergraduate men is approximately normally distributed with mean μ = 190 mg/dl and standard deviation σ = 40 mg/dl.a) What is the probability of selecting someone at random from this population..

Audit assurance and overall assurance : Auditors frequently refer to the terms audit assurance, overall assurance, and level of assurance to refer to

Temperature of the sodium : Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 2.30 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C?

Normally distributed population : Suppose that a normally distributed population has a mean of 12.The probability of randomly selecting a value of 11 or higher is less than 50-True-False

What are the common causative factors? : What are the common causative factors?

User Account

All Pages