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MCD 2080 Week 6 Concepts (HT of The Mean) Flashcards | StudBud
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MCD 2080 Week 6 Concepts (HT of The Mean)
MCD 2080 Week 6 Concepts (HT of The Mean)
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#MCD2080 #business statistics #Hypothesis Testing #Population Mean
Flashcards
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Answers
1
In CV method, REJECT H
0
when the TS is outside the Rejection Region
TRUE
FALSE
2
The two approaches in HT are
Binomial and Normal
Critical Value and P-Value Methods
Numeric and Categorical
Discrete and Continuous
3
The Alternative Hypothesis is
The hypothesis stating an alternative claim
Something that is impossible to find
The hypothesis stating your current belief/claim
The hypothesis where everything is 0
4
Hypothesis Testing involves having a prior belief about the Population parameter
TRUE
FALSE
5
The Null Hypothesis can be written as
H3
H0
H2
H1
6
The CV of one-tail tests involves
Calculating the coefficient of variation
Drawing a nice curve
Dividing α by 2 then look up Z or T table
Use α and look up Z or T table
7
HT of μ involves converting the Sample Mean into
Test Statistic Z when Sigma is known
A magic number that can solve any statistics problem
The population mean
Test Statistic T when Sigma is unknown
8
In CV method, REJECT H
0
when the T
calc
> T
crit
is TRUE
For a left-tail test, when SIGMA is unknown
For a left-tail test, when SIGMA is known
For a right-tail test, when SIGMA is unknown
For a right-tail test, when SIGMA is known
9
The 5-step summary (right) is used for
Pivot Table Analysis
Critical Value Method
P-Value Method
10
The Alternative Hypothesis can be written as
H1
H3
H2
H0
11
The CV of two-tail tests involves
Calculating the coefficient of variation
Use α and look up Z or T table
Drawing a nice curve
Dividing α by 2 then look up Z or T table
12
Estimation involves having no prior belief about the Population parameter
FALSE
TRUE
13
In CV method, REJECT H
0
when the Z
calc
> Z
crit
is TRUE
For a right-tail test, when SIGMA is known
For a left-tail test, when SIGMA is unknown
For a left-tail test, when SIGMA is known
For a right-tail test, when SIGMA is unknown
14
The Test Statistic (Z
calc
or T
calc
) is then used
Test students in MCD2080
Draw nice curves
To create continuous random variables
To make decisions depending on Zcrit or Tcrit
15
In Hypothesis Tests, there are
Two-tails test
Left-tail test
All three
Right-tail test
16
Test Statistics (Z
calc
or T
calc
) is used to determine the probability to reject/not reject H
0
FALSE
TRUE
17
The Null Hypothesis is
Something that is impossible to find
The hypotheis stating an alternative claim
The hypothesis where everything is 0
The hypothesis stating your current belief/claim
18
The Test Statistics (Z
calc
or T
calc
) is used to determine the Rejection Region (CV Method)
TRUE
FALSE
19
FAT 1 will be conducted during
Week 9
Week 8
Easter
Week 10
20
Topics covered in Test 1 will include
Normal Dist, Sampling Dist, CI and HT of μ
Descriptive Statistics
Binomial and Regression
Probability
21
In CV method, REJECT H
0
when the Z
calc
< -Z
crit
is TRUE
For a right-tail test, when SIGMA is unknown
For a right-tail test, when SIGMA is known
For a left-tail test, when SIGMA is known
For a left-tail test, when SIGMA is unknown
22
In P-Value method, REJECT H
0
when our P-Value is > α
FALSE
TRUE
23
The Critical Value (Z
crit
or T
crit
) depends on
SD, one-tail/two-tail
CV, one-tail/two-tail
α, one-tail/two-tail
IQR, one-tail/two-tail
24
In CV method, REJECT H
0
when the T
calc
< -T
crit
is TRUE
For a left-tail test, when SIGMA is known
For a right-tail test, when SIGMA is known
For a left-tail test, when SIGMA is unknown
For a right-tail test, when SIGMA is unknown
