Shirley believes that the petrol prices in her local area are greater than the average price in metropolitan Sydney. She collects samples of data from her local area (Population 2) and also Sydney (Population 1). Assuming equal variances is there evidence to support her claim at the 5% level of significance? Use worksheet J of data file to answer this question.

Sydney	Local
147	153
146	144
150	161
138	153
147	162
149	158
145	161
151	147
155	150
145	157
153	148
166	150
167	138
160	147
159	149
121	145
166	160

You can use the exel to do this exercise

a)The mean value for the local area is given by?

b) The variance for the Sydney area is given by?

c) The null and alternative hypotheses are?

d)Assuming equal variances, the decision rule at the 5% level of significance is?

e) The pooled variance is?

f) The calculated test statistic is?

g) The p-value for this test is?

h) The conclusion to the hypothesis test is?

PLEASE HELP ME WITH THIS QUESTION ASAP THANK YOU