Sample Data

49	25	20	7	8
36	6	2	44	7
8	34	42	42	35
25	43	39	47	51
21	27	43	10	18
13	34	12	11	5
13	27	9	49	24
29	32	10	18	21
2	12	7	7	44
53	12	11

Directions:

1. Use the table above to create an 80%, 95%, and 99% confidence interval.
2. Choose another confidence level (besides 80%, 95% or 99%) to create another confidence interval.
3. Provide a sentence for each confidence interval created above which explains what the confidence interval means in context of topic of your project.

Computations

(Round the mean and sample standard deviation to values to FIVE decimal places)

(REMOVE THIS LINE PRIOR TO SUBMITTING REPORT: Calculate each of the following.)

Sample Mean =

Sample Standard Deviation =

(Round the lower/upper limits and margin of error to THREE decimal places).

#1.

80% Confidence Interval:

80% Confidence Interval Margin of Error:

Sentence:

#2.

95% Confidence Interval:

95% Confidence Interval Margin of Error:

Sentence:

#3.

99% Confidence Interval:

99% Confidence Interval Margin of Error:

Sentence:

#4. Make up YOUR OWN Interval.

______% Confidence Interval:

______% Confidence Interval Margin of Error:

Sentence