A food magazine called Consumer Reports, carried out a survey of the calorie and sodium content of a number of different brands of hotdog. Two types of hotdog were considered; beef and poultry. The results below show the calorie content of the different brands of beef and poultry hotdogs.

Beef (A)	186	181	176	149	184	190	158	139	175	148	152	111	141	153	190	157	131	149	135	132
Poultry (B)	129	132	102	106	94	102	87	99	170	113	135	142	86	143	152	146	144

A previous F-test made on this data gave an insignificant result and histograms of the two samples showed that they both looked reasonably normally distributed. test at the 5% significance if there is a difference in calorific content between the two types of hotdogs.

(a)	State the null hypothesis and the alternate hypothesis.
	AnswerH0: A- B 0 ;H1:A- B > 0H0: A- B = 0 ;H1:A- B 0H0: A- B 0 ;H1:A- B < 0H0: A- B 0 ;H1:A- B = 0 (2 marks)

(b) Calculate the test statistic, taking note of the order of calculation as indicated in the questiion

t= (state accurate to 2dp) (4 marks)

(C) State the Degrees of Freedom,

df= (1 mark)

(d) Look up the upper tail critical value from tables(state to 3dp as given in tables) t_c=

(e)	What is your decision regardingH0?
	Answer: Do not reject Ho/ Reject Ho