Calculate the z-score first.
with "s" being the standard deviation within the sample of n=4 and being the sample mean.
So
Note the absolute value - it takes care of a difference in both directions (sample mean being lower and higher) but we need to keep it mind when looking up the z values in tables - we must choose the "two-tailed test" table.
Now, look up the required z value for alpha=0.05: z>=1.96 (using a two-tailed table).
So our z would have be >=1.96 for the evidence to be significant at the required level of 0.05. The calculated value falls far short at 0.5. Therefore there is no evidence for a significant treatment effect, given the data/sample.
Answer:
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Answer:um Puedes hablar ingles?
Step-by-step explanation:
0.09 : 0.27
=9/100 : 27:100
=9 : 27
=1 : 3
Hope my answer helped u :)