You are given the following information obtained from a random sample of 6 observations. Assume the population has a normal distribution.
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.
Definitions:
Q3: Refer to Exhibit 6-1. The expected assembly
Q12: Refer to Exhibit 9-5. At 95% confidence,
Q21: Refer to Exhibit 11-3. The number of
Q31: Refer to Exhibit 9-8. The standard error
Q70: Refer to Exhibit 10-6. At 95% confidence,
Q82: The probability distribution of the daily demand
Q93: Refer to Exhibit 10-10. The test statistic
Q106: The number of electrical outages in a
Q117: The error of rejecting a true
Q128: Consider the following hypotheses test.<br>H<sub>o</sub>: