Solution Found!
In Exercise, refer to the accompanying screen display that
Chapter 7, Problem 1BSC(choose chapter or problem)
Statistical Literacy and Critical Thinking
In Exercises 1–3, refer to the accompanying screen display that results from a sample of 40 duration times (seconds) of eruptions of the Old
Faithful geyser in Yellowstone National Park.
Confidence Interval Refer to the accompanying screen display.
a. Express the confidence interval in the format that uses the “less than” symbol.
b. Identify the best point estimate of \(\mu\) and the margin of error.
Equation Transcription:
Text Transcription:
mu
Questions & Answers
QUESTION:
Statistical Literacy and Critical Thinking
In Exercises 1–3, refer to the accompanying screen display that results from a sample of 40 duration times (seconds) of eruptions of the Old
Faithful geyser in Yellowstone National Park.
Confidence Interval Refer to the accompanying screen display.
a. Express the confidence interval in the format that uses the “less than” symbol.
b. Identify the best point estimate of \(\mu\) and the margin of error.
Equation Transcription:
Text Transcription:
mu
ANSWER:
Answer:
Step 1 of 1
a. Here, expressing the confidence interval in the format that uses the “less than” symbol
From the TI-83/84 output, we see that the population mean is (233.4, 256.65).
This can be written as
233.4 sec < < 256.65 sec.