Question
In: Statistics and Probability
1. A medical study followed 675 cancer patients who received either a new drug Lafent or...
1. A medical study followed 675 cancer patients who received
either a new drug Lafent or a
standard chemotherapy drug. 76% of those who received Lafent
were still living after
eight months, compared to only 63% of those who received the
standard chemotherapy
drug. Identify the Population, the sample, and any population
parameters or sample
statistics that are given.
Solutions
Expert Solution
Population: The set of all people that the researcher wants information about is the population. For the given problem, the set of all cancer patients who receive either a new drug Lafent or a standard chemotherapy drug is the population.
Sample: Sampe is the subset of population. Samples are drawn inorder to make our study more easy. For the given situation, the selected 675 cancer patients who receive either a new drug Lafent or a standard chemotherapy drug is the sample.
Population Parameter: Population parameter is a function of population values. This can include population mean, population proportion or population variance. For the given problem, there is no population parameter.
Sample Statistic: Sample statistic is a function of sample values. This can include sample mean, sample proportion or sample variance. For the given problem, there are two sample statistics.
- Proportion of cancer patients who received Lafent.
- Proportion of cancer patients who received the standard chemotherapy drug.
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