Sample after calibration: mean is 106.601 , SD is 5.1 and sample size is 10 Sample before calibration: mean is 104.907 , SD is 5 and sample size is 73 We do not know population standard deviations. What is the p-value? (Hint: best to use software, or else the Desmos Calculator for the 2 sample T and Z test) Give as a decimal between 0 and 1 accurate to at least 4 decimal places. VERY URGENT
A scale is known to be "low-calibrated" in that it measures an aluminum bar to be 3 grams lower than the actual weight. If ????μold is the mean of all possible measurements of the bar using the old calibration, and ????μnew is the mean of all possible measurements of the bar using a re-calibrated scale. It is desired that ????−????=3μnew−μold=3.
Consider the test
?0:????−????=3H0:μnew−μold=3 vs. ?0:????−????≠3H0:μnew−μold≠3
Sample after calibration: mean is 106.601 , SD is 5.1 and
Sample before calibration: mean is 104.907 , SD is 5 and sample size is 73
We do not know population standard deviations.
What is the p-value? (Hint: best to use software, or else the Desmos Calculator for the 2 sample T and Z test)
Give as a decimal between 0 and 1 accurate to at least 4 decimal places.
VERY URGENT
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