Identify the Null Hypothesis, Alternative Hypothesis, Test Statistic, P-Value, Conclusion

Essay

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim.
-Various temperature measurements are recorded at different times for a particular city. The mean of 20°C is obtained for 40 temperatures on 40 different days. Assuming that = 1.5°C, test the claim that the population mean is 23°C. Use a 0.05 significance level.