A team of scientists are investigating whether a new drug will decrease the amou
ID: 3218849 • Letter: A
Question
A team of scientists are investigating whether a new drug will decrease the amount of errors in attention during a driving exam. A random sample was taken from a population of people, with a u = 16, at a driving school and were given the new drug. The amount of errors after treatment for the n = 10 sample is as follows: 10, 12, 15, 11, 10, 9, 8, 10, 10, 11. Does the drug help decrease driving errors. Perform a one-tailed test at alpha = .01. What is the standard error for the t statistic. Please enter 2 digits after the decimal point.
Explanation / Answer
The statistical software output for this problem is:
One sample T hypothesis test:
: Mean of variable
H0 : = 16
HA : < 16
Hypothesis test results:
Hence,
Standard error = 0.60
Variable Sample Mean Std. Err. DF T-Stat P-value Data 10.6 0.6 9 -9 <0.0001Related Questions
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