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The data below are the survival times after treatment (in days) of some advanced colon cancer...

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Statistics

The data below are the survival times after treatment (in days)of some advanced colon cancer patients who were treated withascorbate.

248, 377, 189, 1843, 180, 537, 519, 455, 406, 365, 942, 776,372, 163, 101, 20, 283

(a)

i) What is the point estimate for the average or mean of thisdata?

ii) Report an appropriate 96% confidence interval estimate forthe mean survival time after treatment of all advanced colon cancerpatients who might be treated with ascorbate. Assume the survivaltimes are normally distributed and take Standard Deviation to be427.17.

iii) Interpret the confidence interval in words and incontext.

(b) Based on the data at hand, would 600 days be considered areasonable guess as to the average survival time?

(c) What was the margin of error (ME) of the confidenceinterval?

(d) If we wanted to be 99% confident that our estimate waswithin 60 days of the population mean survival time, how manypatients should we observe?

(e) If the sample included more patients, would the 96%confidence interval have been narrower or wider?

Answer & Explanation Solved by verified expert
4.3 Ratings (647 Votes)
aiThe point estimate for the average or mean of    See Answer
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