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SI Assignment 2

The document appears to be a collection of statistical assignments and analyses related to hypothesis testing, confidence intervals, and sample means. It includes various scenarios involving guest bills, product weights, and error types, along with calculations and conclusions drawn from statistical tests. The content is fragmented and lacks coherent structure, making it difficult to extract a unified narrative.

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Haris Kalim
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0% found this document useful (0 votes)
14 views11 pages

SI Assignment 2

The document appears to be a collection of statistical assignments and analyses related to hypothesis testing, confidence intervals, and sample means. It includes various scenarios involving guest bills, product weights, and error types, along with calculations and conclusions drawn from statistical tests. The content is fragmented and lacks coherent structure, making it difficult to extract a unified narrative.

Uploaded by

Haris Kalim
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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SI

Assignment 2 .

Haris Kalim .

27839
On
% = 52 - 040

.D
5 = 2 .
807

21 = 95%

1 -
0 .
95 = 0 .
05

dF = 30 -
1 : 29

T -

tax - 1))
52 040 .
- 1 .

69(
Ft17g we are

6) 51 that confident that


17g 95 %
·
mean

of small at least
the true mean
bags is

51
Ag
·
.

2)ithepackagclaim hut each,a


conclude that
B is
highe sample ,
the advatised
,
we mean

i
is
e
highefor consumers
weightfavorable than
weight .
d)
-
07

Yes we may a t-table test as


,

6 is unknown an n > 5.
,
⑬ Eo
a)
% : =0

zu
:
6) (1 = 95 % 1-0 9570
. .
05

df 20-1 19.
-
, =

2551 =
2 .
093 (1937)
Jo rental

ne
= 301 3 .
5 1 000
Earl
=:
=
F

S =
22 .
35

1-6 09
:

5
025 0
%
-

df = 20 - 1 = 19

71 2 093 .

(3)
81 4 .
60 .
5

S D
3 pop
.

Sp
: sample
Exl Hotel Guest Bill Anderson
a) No H = 600

Hall > 600

b) We can conclude that there is not


evidence that mean
enough to
suggest
guest bills are
increasing
) We would conclude that the is

amount of evience that


significant
indicates that mean
guest
bills one

increasing more $600 .

Ho 14
Ea M :

HaM > 14

b) If He cannot be rejected ,
then we
conclude that there is not evidence
enough
tosuggestthat
the new busine is
a
2) If Ho is rejected it indicates that there
,

is sufficient evidence that the new

will increase sale.


plan
6) Ho H-1
Ha(1 > 1

6 Type I error would be


reject
to the Ho

that I litre containe contains


stating
> 1 fat. ,
leading to False
advatising a
unfit to consume for consumes on

daily basis
2) A Type It evol would be to not
est
reg
the Ho when it is
actually
fake .

Anduson 9 - 11 p465
-20
3/558
:
E
00017
017 c 05 so
1) since p is 0 we con
. .

conclude that there is sufficient eviden

a)to ejeHoisusLaR h
, v
a)
T

b) 0009D
C) at x = 0 .
01
,
0 .
9292 > 0 .
01 we

can conclude there isn't sufficient


evidence
eject
to Ho

d) at 0 . 01 the critical approach give


us the value of 1 17 x-2 331 .
so

do
we not
ejectIts
a) samples
.
D =
145-15 => 7003
.

350
b)
as

at 05 conclude that
C) a = 0 we can
.

then is sufficient evidum to

rejectHo as 0 .
0008 20.05
2) Whing CVA
get-1
we 645 that is
.

1-2 .
003
,
here
vejet Ho
En 15 ,
16 , 20 p 466 Anderson
15a) +o = ( = 1856

Ha =
M < 1056

Thunjecting Ho will support seance a

b)
10525
prawe 0003YY =

C) at 2 = 0 . 05
,
we can conclude that

0 . 0344 c 0 . 05 so there is

sufficient evidence to
rejectHo
D)
Using critical
approach ,
we
get-1 -
645

which -1 . 825 ,
hunce can
leject to

16) a) Ho = 5173
Ha T
, 3173

b) 059
5565-3173
: =
2 .

=
M0793
c) at 0 .
05 20 .
9793
, so we conclude

that we don't have sufficient evidum to

Reject Ho
Ho = 838
Ha < 745

838
b)
> 100082
d) at a = 0 . 01 > 0 .
0082
,
so we can

conclude that then is sufficient evidence


Ho
reject
to

Andersen p472 E28 , 29 31 30 , ,

Ho 9
28)
Ha 9

1)
500066
c) at a : 01
,
0 .
0062 < 0 ·

01
,
home we

on
reject Ho
29)a) Ho = 21 62 ·

Ha = 21 62 .

b) = 0 5
p
.

c) No
d)

30)a) Ho = 6 .
4
Ha * 6 4 .

D) X = 6 4 .

05
31.Ho Y :3
: a = 0 .

2-
2
.

2 = 0 . 986470 .
5199

ot enoughea
to

suggest Ma
3)

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