An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05. Choose the correct direction of the test and the appropriate sampling distribution. ○ Two-tailed test; z-distribution. Two-tailed test; t-distribution. Left-tailed test; z-distribution. Left-tailed test; t-distribution. Right-tailed test; t-distribution. We do not have enough information. Right-tailed test; z-distribution.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb
temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests
the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05.
Choose the correct direction of the test and the appropriate sampling distribution.
○ Two-tailed test; z-distribution.
Two-tailed test; t-distribution.
Left-tailed test; z-distribution.
Left-tailed test; t-distribution.
Right-tailed test; t-distribution.
We do not have enough information.
Right-tailed test; z-distribution.
Transcribed Image Text:An inspector at a lumberyard needs to find out if their kiln dry bulb is the correct temperature. In order to properly dry the lumber, the average bulb temperature needs to be at most 130 degrees Fahrenheit. An analyst collects data on the bulb temperature over the course of several weeks, and then tests the claim that the bulb's average temperature is at most 130 degrees Fahrenheit. He uses a significance level of 0.05. Choose the correct direction of the test and the appropriate sampling distribution. ○ Two-tailed test; z-distribution. Two-tailed test; t-distribution. Left-tailed test; z-distribution. Left-tailed test; t-distribution. Right-tailed test; t-distribution. We do not have enough information. Right-tailed test; z-distribution.
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