Answer: We do not reject the null hypothesis.
Step-by-step explanation:
Given : Test statistic : [tex]z = -2.28[/tex]
Significance level : [tex]\alpha=0.02[/tex]
By using the standard normal distribution table ,
The p-value corresponds to the given test statistic ( two tailed ):-
[tex]2P(Z>|z|)=2P(Z>2.28)=0.0226[/tex]
Since the p-value is greater than the significance level of 0.02.
Then , we do not reject the null hypothesis.