Answer:
95%
Step-by-step explanation:
We have the following information:
n = 25, p-value = 0.0667
Besides that H0 is not rejected.
With this information we can affirm that the highest possible significance level you can have is 95%
Because alpha = 0.05
We reached this conclusion thanks to the fact that:
p-value> 0.05 hence we do reject the null hypothesis
