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Statistics IDSS11212 (202400-4788)

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The proportion of voters

supporting political party

A

in

previous elections was

π= 0.80

. To test whether this proportion

will remain in the actual elections, an election poll of

size n = 350

 has

been planed.  

Taken Significance

Level of

0.15, the Acceptance Region for H0  (π= π0) is (find the closest answer):    

0%
100%
0%
0%
0%
View this question

We assumed that the amount of money spent in a shopping

trip follows Normal Distribution with the average of

μ0 = 98

€. This assumption has

been tested on a sample of size

n

=9
. The sample mean has been

 X with bar on top= 88.4

€ with

the

sample standard deviation of s = 15.5€.

Taken Significance Level of 0.12, the Rejection Region for H0 

=

μ

0) is (find the closest answer):

0%
0%
0%
100%
0%
View this question

We assumed that the amount of money spent in a shopping

trip follows Normal Distribution with the average of

μ0 = 84

€. This assumption has

been tested on a sample of size

n

=8
. The sample mean has been

 X with bar on top= 95.7

€ with

the

sample standard deviation of s = 13.1€.

Taken Significance Level of 0.05, the Rejection Region for H0 

=

μ

0) is (find the closest answer):

0%
100%
0%
0%
0%
View this question

The proportion of voters

supporting political party

A

in

previous elections was

π= 0.70

. To test whether this proportion

will remain in the actual elections, an election poll of

size n = 1300

 has

been planed.  

Taken Significance

Level of

0.12, the Rejection Region for H0  (π= π0) is (find the closest answer):    

0%
0%
0%
0%
0%
View this question

We assumed that the amount of money spent in a shopping

trip follows Normal Distribution with the average of

μ0 = 96

€. This assumption has

been tested on a sample of size

n

=9
. The sample mean has been

 X with bar on top= 91.65

€ with

the

sample standard deviation of s = 16.1€.

The lowest Significance Level among offered, with

which H

0 = μ0) could be rejected, is:

0%
0%
100%
0%
0%
View this question

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