Stats Solutions

(Step-by-Step) Carl wants to estimate the mean length of sentences in his philosophy text book. A random sample of 100 sentences had sample mean length of 24

Question: Carl wants to estimate the mean length of sentences in his philosophy text book. A random sample of 100 sentences had sample mean length of 24 words with sample standard deviation s = 6 words.

  1. Find an 80% confidence interval for the population mean sentence length.
  2. Find a 95% confidence interval for the population mean sentence length.
  3. Calculate the lengths of the two confidence intervals. How do the lengths change as the confidence level increases?

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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