Answer Happy

A household survey of families is carried out. Information
collected include the total number of occupants of
the household, net household income, weekly
expenditure on food, energy
(electricity / gas / oil etc.), entertainment and
travel, whether or not the family have a
car, whether or not they have a subscription
TV service, their internet
connectivity status (none, fibre, non-fibre), whether or not the
family have private health insurance and whether
or not they have a savings bank account. Those
that do not have private health insurance or a savings account are
additionally asked if they are likely to acquire these in the
future (futureInsurance and
futureSavings) with response options of no, maybe
and yes.
For the regression model
income' = 70 + 49.4 food - 7.1 energy - 6.5 tvYes
decide which of the following is true.
a.
The value of income tends to increase as energy increases
b.
The value of income would on average increase by 7.1 for every
unit increase in energy
c.
The mean value of income will be 7.1 for cases with an average
amount of energy
d.
The value of income would on average increase by 1 for every 7.1
increase in energy
e.
The value of income tends to decrease as food decreases