Answer: Your welcome!
Step-by-step explanation:
The critical value for a left-tailed test with level of significance α = 0.1 and sample size n = 22 is -1.714. This means that if the calculated t-statistic is less than -1.714, then the null hypothesis can be rejected. The rejection region for this type of t-test is any t-statistic that is less than -1.714.