CUNY DATA205 Lab Assignment 6 Latest 2019 JULY Question # 00603535 Subject: Education Due on: 08/09/2019 Posted On: 08/09/2019 08:22 AM Tutorials: 1 Rating: 4.6/5
DATA205 Introductory Analytics (QC)
Lab Assignment 6
Confidence
Intervals
Answer the
following for each of your 3 assigned interval/ratio variables:
1. What is
the confidence interval? In words, what
does this mean?
(Be sure to
refer to the metric [years, hours, points, etc] for the variables you are
describing)
2. What is
the best point estimate for the mean?
(Single
number for population mean)
Answer
these general questions (single response):
3. Given a
99% confidence level, in what percent of all possible samples would the same
conclusions be reached?
4. Given a
99% confidence level, what is the probability that you are incorrect?
5. If the
confidence level was decreased to 95% what would happen to the width of the
confidence interval: Narrower or Wider?
6 If the sample size was decreased what would
happen to the width of the confidence interval: Narrower or Wider?
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