Statistics Please help!
posted by Justin .
A company claims that cancer patients using drug X will live at least 8 more years.
n=25
= 8.5 year
s = 1.5 year
a) Test at a=.01
b) Give the CIE at 95%
Respond to this Question
Similar Questions

statistics
the life expectancy of lung cancer patient treated with a new drug is normally distributed with a mean of 4 years and a standard deviation of 10 months what is the probability that a randomly selected lung cancer patient will last … 
statistics
The probability that a 30year old white male will live another year is .99842. What premium would an insurance company charge to break even on a 1year $1 million dollar term life insurance policy? 
statistics/probability
in testing a new drug. researchers found that 20% of all patients using it will have a mild side effect. a random sample of 14 patients using the drug is selected. find the probability that: a) exactly three will have mild side effects. … 
Biology
1. A medical scientist is designing an experiment to test the results of a new drug that she hypothesizes will greatly reduce and possibly eliminate the side effects of a new cancer treatment. If this experiment is to be set up correctly, … 
Math please help
7. The doctor’s assistant claims that at least 350 of the 500 patients have seen the doctor in the past year. A random survey of 45 patients shows that 18 have seen the doctor in the past year. Is the assistant’s claim likely to … 
Statistics
The Centers for Disease Control (CDC) collects yearly statistics on drinking behavior in the United States by surveying a random sample of U.S. adults. The following data display the percent of adults aged 18 years and over who had … 
Statistics
The Centers for Disease Control (CDC) collects yearly statistics on drinking behavior in the United States by surveying a random sample of U.S. adults. The following data display the percent of adults aged 18 years and over who had … 
statistics
4.2. A new drug that treats patients with anxiety has a 60% success rate in improving the patient’s condition. For a random sample of eight patients taking this drug, determine the probability that: 4.2.1. Four patients have improvement … 
Business statistics
A new drug that treats patients with anxiety has a 60% success rate in improving the patient’s condition. For a random sample of eight patients taking this drug, determine the probability that: 4.2.1. four patients have improvement … 
statistics
A customer service division of a telecommunications firm receives 100 mobile phones for repair on a particular week. 18 of the phones are less than a year, 60 phones are more than a year but less than 2 years and the rest are older …