I need help with the following;

Develop a null hypothesis and an alternative hypothesis based on the data you have collected.

Discuss why you have chosen the hypotheses you developed above. Be sure to discuss the concept of null hypothesis in your response.

for the following data of calories consumed;

Day	Calories
April 25th	1,662
April 26th	1,440
April 27th	1,820
April 28th	682
April 29th	1,770

How do I do this?