Reference no: EM131092277
Suppose that a health plan asserts that a patient hospitalized with coronary heart disease requires no more than 6.5 days of hospital care. However, we believe that a stay pf 6.5 days is too low. To examine the claim of the health plan, assume further that we collected data depicting the lengths of stay of 40 patients who were hospitalized recently with coronary heart disease. The results of the sample are as follows:
5,8,9,12,7,9,10,11,4,7,8,5,8,13,11,10,6,5,8,9
5,12,7,9,4,8,7,7,11,5,8,10,5,8,2,11,3,6,8,7
If a = 0.05, use these data to evaluate the claim by the health plan
Cartwright manufacturing are awarded efficiency ratings
: The employees of Cartwright Manufacturing are awarded efficiency ratings. The distribution of the ratings approximates a normal distribution. The mean is 406, the standard deviation 64. What is the area under the normal curve between 406 and 492?
|
Describe the unique features of e-commerce technology
: What is the purpose of a continuous improvement program? What role does HRM play in assisting continuing improvements?
|
Development of alzheimer disease
: Betsy is interested in predicting how many 75-year-olds will develop Alzheimer's disease and is using level of education and general physical health graded on a scale from 1 to 10 as predictors. But she is interested in using other predictor varia..
|
Graduates from the english department
: Four hundred graduates returned the survey. The average salary was $25,500. The population standard deviation is $2,586. What is the 95% confidence interval for the mean salary of all graduates from the English Department?
|
Hospitalized recently with coronary heart disease
: To examine the claim of the health plan, assume further that we collected data depicting the lengths of stay of 40 patients who were hospitalized recently with coronary heart disease. The results of the sample are as follows:
|
Particular death is due to an automobile accident
: The National Center for Health Statistics reported that of every 896 deaths in recent years, 23 resulted from an automobile accident, 181 from cancer and 304 from heart disease. What is the probability that a particular death is due to an automobi..
|
Construct a binomial distribution
: Round 4 decimal places or give answers in scientific notation if necessary. 1. It is believed to be true that 15% of the U.S. population is left-handed. You randomly select 10 people. Let x represent the number of left-handers.
|
Probability that a particular top executive
: Ten percent read both Time and U.S. News & World Report. What is the probability that a particular top executive reads either Time or U.S. News & World Report regularly?
|
Partially completed manufacturing cost schedule
: Laser Tex Inc. manufactures low-end computer components within a relevant range of 100,000 to 140,000 disks per year. Within this range, the following partially completed manufacturing cost schedule has been prepared
|