Question 7:
pg. 553, exercises q18.16
18.16 a loans officer is interested in the relationship
between the number of housing loan
applications and the prevailing credit card
interest rate. she took a random sample of 8
months from the previous 3 years with the
following results: y
number of loan
bapplications
terest rate
52
12.3
40
13.7
32
13.5
64
12.0
21
14.8
28
14.0
43
13.3
14.4
24
(a) find the least-squares regression line that
allows for prediction of the number of loan
applications from the interest rate.
(b) draw a scatter diagram of the data and drav
the line found in (a).
(c) what does the slope of the line signify in
economic terms?
(d) is the line a good fit to the data? why or
why not?

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

a

step-by-step explanation:

which would be true for stem changing verbs?

they have a consistent spelling change in the stem of the verb.

what is different about the verb “venir” as compared to other stem-changing verbs?

only the third person forms have a stem change.

which of the following could not be considered a “stem-changing” verb?

querer

which of the following would not be condsidered an event?

desfile

what word could be used in response to the following?

¿qué quieres comprar?

quero

what word could be used in response to the following?

¿dónde uds. pueden ir?

vamos  

ellos ir al centro comercial.

yo comprar un vestido.

pedimos

dónde tú?

dormes

step-by-step explanation: