Find t and P value
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Help!!!! Find t and P value
![A spectrophotometer used for measuring CO concentration [ppm (parts per million) by volume] is checked for accuracy by taking readings on a manufactured gas (called span gas) in which the CO
concentration is very precisely controlled at 69 ppm. If the readings suggest that the spectrophotometer is not working properly, it will have to be recalibrated. Assume that if it is properly calibrated,
measured concentration for span gas samples is normally distributed. On the basis of the six readings-69, 77, 68, 85, 72, and 82-is recalibration necessary? Carry out a test of the relevant
hypotheses using a = 0.05.
State the appropriate null and alternative hypotheses.
O Ho: μ = 69
H₂: μ # 69
Ho: μ = 69
Ha: μ> 69
Ho: μ> 69
H₂: μ< 69
Ho: μ< 69
H₂: μ> 69
Ho: μ = 69
H₂: μ< 69
USE SALT
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.)
t =
P-value =
MAY
13
tv
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Transcribed Image Text:A spectrophotometer used for measuring CO concentration [ppm (parts per million) by volume] is checked for accuracy by taking readings on a manufactured gas (called span gas) in which the CO
concentration is very precisely controlled at 69 ppm. If the readings suggest that the spectrophotometer is not working properly, it will have to be recalibrated. Assume that if it is properly calibrated,
measured concentration for span gas samples is normally distributed. On the basis of the six readings-69, 77, 68, 85, 72, and 82-is recalibration necessary? Carry out a test of the relevant
hypotheses using a = 0.05.
State the appropriate null and alternative hypotheses.
O Ho: μ = 69
H₂: μ # 69
Ho: μ = 69
Ha: μ> 69
Ho: μ> 69
H₂: μ< 69
Ho: μ< 69
H₂: μ> 69
Ho: μ = 69
H₂: μ< 69
USE SALT
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.)
t =
P-value =
MAY
13
tv
S
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