can someone help me with this question? pls show steps and explain so that i can understandd thank u

QUESTION 3 A study was done to estimate the average number of computer terminal produced per day from a company. The manager claims that the average number of computer terminal produced per day is 29. Analysis of previous 30 days computer terminal produced gives the following result. One Sample Statistics N Mean Std. Deviation Std. Error mean Number of computer 30 28.2 4.19688 0.76624 terminal produced a) Show that the std error mean is 0.76624 (2 marks) b) Calculate the 95% confidence interval for the mean daily number of computer terminal produced. (3 marks) c) Based on the confidence interval in (b), is average number of computer terminal produced per day is different from 29? Give a reason to support your answer. (2 marks)