Use a statistical software package to answer the following questions. a. Does the revenue seem to increase as the number of occupied rooms increases? Draw a scatter diagram to support your conclusion. b. Determine the correlation coefficient between the two variables. Interpret the value. c. Is it reasonable to conclude that there is a positive relationship between revenue and occupied rooms? Use the.10 significance level. d. What percent of the variation in revenue in the restaurant is accounted for by the number of rooms occupied?

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A suburban hotel derives its revenue from its hotel and restaurant operations. The
owners are interested in the relationship between the number of rooms occupied on a
nightly basis and the revenue per day in the restaurant. Below is a sample of 25 days
(Monday through Thursday) from last year showing the restaurant income and number
of rooms occupied.

40. FILE A suburban hotel derives its revenue from its hotel and restaurant operations. The
owners are interested in the relationship between the number of rooms occupied on a
nightly basis and the revenue per day in the restaurant. Below is a sample of 25 days
(Monday through Thursday) from last year showing the restaurant income and number
of rooms occupied.
Day
Revenue
Occupled
Day
Revenue
Ocupled
1
$1,452
23
14
$1,425
27
2
1,361
47
15
1,445
34
3
1,426
21
16
1,439
15
4
1,470
39
17
1,348
19
1,456
37
18
1,450
38
6.
1,430
29
19
1,431
44
7
1,354
23
20
1,446
47
1,442
44
21
1,485
43
1,394
45
22
1,405
38
10
1,459
16
23
1,461
51
11
1,399
30
24
1,490
61
12
1,458
42
25
1,426
39
13
1,537
54
Use a statistical software package to answer the following questions.
a. Does the revenue seem to increase as the number of occupied rooms increases?
Draw a scatter diagram to support your conclusion.
b. Determine the correlation coefficient between the two variables. Interpret the value.
c. Is it reasonable to conclude that there is a positive relationship between revenue and
occupied rooms? Use the.10 significance level.
d. What percent of the variation in revenue in the restaurant is accounted for by the
number of rooms occupied?
Transcribed Image Text:40. FILE A suburban hotel derives its revenue from its hotel and restaurant operations. The owners are interested in the relationship between the number of rooms occupied on a nightly basis and the revenue per day in the restaurant. Below is a sample of 25 days (Monday through Thursday) from last year showing the restaurant income and number of rooms occupied. Day Revenue Occupled Day Revenue Ocupled 1 $1,452 23 14 $1,425 27 2 1,361 47 15 1,445 34 3 1,426 21 16 1,439 15 4 1,470 39 17 1,348 19 1,456 37 18 1,450 38 6. 1,430 29 19 1,431 44 7 1,354 23 20 1,446 47 1,442 44 21 1,485 43 1,394 45 22 1,405 38 10 1,459 16 23 1,461 51 11 1,399 30 24 1,490 61 12 1,458 42 25 1,426 39 13 1,537 54 Use a statistical software package to answer the following questions. a. Does the revenue seem to increase as the number of occupied rooms increases? Draw a scatter diagram to support your conclusion. b. Determine the correlation coefficient between the two variables. Interpret the value. c. Is it reasonable to conclude that there is a positive relationship between revenue and occupied rooms? Use the.10 significance level. d. What percent of the variation in revenue in the restaurant is accounted for by the number of rooms occupied?
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