From the table below, use a simple linear regression analysis to establish the relationship that may...

From the table below, use a simple linear regression analysis to establish the relationship that may exist between a) number of confirmed cases and deaths; b) number of confirmed cases and number of tests performed; c) number of confirmed cases and number of recoveries; and d) number of deaths and number of recoveries. Briefly discuss these relations.

Date	Total confirmed	Death	Recoveries	Test
1-Apr	195	5	3	12046
2-Apr	204	5	3	12046
3-Apr	205	5	3	12046
4-Apr	214	5	3	12046
6-Apr	287	5	3	12046
7-Apr	313	6	3	12046
9-Apr	378	6	4	14611
10-Apr	408	8	4	27348
11-Apr	566	8	4	37954
15-Apr	641	8	83	50719
18-Apr	834	8	83	60916
19-Apr	1042	8	83	68591
22-Apr	1279	10	134	88188
25-Apr	1550	11	155	100622
27-Apr	1671	16	188	106090
28-Apr	2074	17	212	113497
1-May	2169	18	229	117049
2-May	2719	18	294	129461
4-May	3091	18	303	135902
7-May	4012	18	323	149948
8-May	4263	22	378	155201
10-May	4700	22	494	160501
11-May	5127	22	494	162184
12-May	5408	24	514	165433
13-May	5530	24	674	168685
14-May	5638	28	1460	172623
15-May	5735	29	1754	174077
17-May	5918	31	1754	180567
18-May	6096	31	1774	184343
19-May	6269	31	1898	187929
20-May	6486	31	1951	192194
21-May	6617	31	1978	193705
22-May	6683	32	1998	194763
23-May	6809	32	2070	198175
24-May	6964	32	2097	202130
25-May	7117	34	2317	203383

Solutions

Expert Solution

Answer to above questions

Linear regression is a common Statistical Data Analysis technique. It is used to determine the extent to which there is a linear relationship between a dependent variable and one or more independent variables. It is a model that showcases the relationship between two variables.

Y=a+bX+

where Y= Dependent Variable

X = Independent Variable

a = intercept

b = slope

= residual error

so according to question 1 relation will be expressed as

Y =no.of confirmed case ,X= no.of deaths

and relation will be Y= a+bX+

According to question 2 relation will be expressed as

Y= no.of confirmed case ,X = no.of test performed

and relation will be same as above Y= a+bX+

According to question no 3 relation will be expressed as

Y= no.of recoveries ,X= no.of confirmed case

and relation will be expressed as Y= a+bX+

According to question no.4 relation will be expressed as

Y= no.of deaths and X = no.of recoveries

and relation will be expressed as Y= a+bX+

gladiator answered 1 year ago

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