You are given the following information obtained from a random sample of 6 observations. Assume the population has a normal distribution.
142021161819?
a.What is the point estimate of ??b.Construct an 80% confidence interval for ?.c.Construct a 98% confidence interval for ?.d.Discuss why the 80% and 98% confidence intervals are different.
What will be an ideal response?
?
| a. | 18 |
| b. | 16.43 to 19.57 (rounded) |
| c. | 14.42 to 21.58 (rounded) |
| d. | As the level of confidence increases, the confidence interval gets wider. |
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