Assume the distribution of the cholesterol for patients in

Assignment Help Basic Statistics

Reference no: EM13615411

A special diet is intendend to reduce cholesterol of patients at risk of heart disease. If the diet is effective, the target is to have the average cholesterol of this group be below 200. After six months on the diet, a simple random sample of 41 patients at risk for heart disease had an average cholesterol of x=192, with standard deviation s=21. Is this sufficient evidence at the a=0.05 (1 tail) levl of significance to state that the diet is effective in meeting the target? Assume the distribution of the cholesterol for patients in this group is approximately Normal. Find a 95% confidence interval for the average cholesterol of patients at risk fo r heart disease who have been on the diet for 6 months.

Reference no: EM13615411

Questions Cloud

Fifteen tobacco plants of the same age and genetic strain : fifteen tobacco plants of the same age and genetic strain were randomly assigned to three groups of five plants each.

Due to constraints of the design the experiment was run : an effective way to catch salmon commercially is by gill netting. traditionally gill netters hang long monofilament

A college graduate school president is interested in : a college graduate school president is interested in knowing what proportion of applicants would like to be accepted

A random sample of 45 door-to-door encyclopedia : a random sample of 45 door-to-door encyclopedia salespersons were asked how long on average they were able to talk to

Assume the distribution of the cholesterol for patients in : a special diet is intendend to reduce cholesterol of patients at risk of heart disease. if the diet is effective the

In a learning experiment untrained mice are placed in a : in a learning experiment untrained mice are placed in a maze and the time required for each mouse to exit the maze is

Assume that a random sample of 500 households in michigan : suppose an actual census showed that 20 of the households in michigan have incomes in excess of 60000. assume that a

Use the one-proportion z-interval procedure to find the : use the one-proportion z-interval procedure to find the required confidence interval. be sure to check the conditions

User Account

All Pages