A researcher wanted to find the relationship between the monthly household spending on grocires Y ( in dollars ) and the housholds monthly income X(in dollars)
10 households were randomly selected and data were obtained in the following table
Grocery Spending Y	715	583	484	425	418	418	418	407	405	385	336
Monthly income X	5232	4316	4238	3600	4000	3730	4730	3005	3800	4127	3800
the data stored in the excel sheet
a) Find the regression equation for the data
b) Find the coefficient of determaination and interpret its value
c) Interpret carefully the regression coefficients .
d) At the 5% significance level , do the data provide sufficient eveidence to conclude that the households monthly income is good predictor of the monthly grocery spending?
e) Estimate a point predection for the mean monthly grocery spending of all of the households that have amonthly income 6000 dollars .
f) Estimate a 95% predection interval the monthly grocery spending of a housholds that have monthly income 6000 dollars	dollars
g) Estimate a 95 % confidence intereval the mean monthly grocery spending of all households that have monthly income 6000 dollars