Answer:
a) 18
b) 2.101
Step-by-step explanation:
a) What are the degrees of freedom for Student's t distribution when the sample size is 19?
Degrees of freedom = n - 1
Where n = sample size
= 19 - 1
= 18
b) Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 19.
(Round your answer to three decimal places.)
We would be determining these using the t distribution table
1 - 0.95 = 0.05 ( for two tailed)
Or
0.05/2 = 0.025(one - tailed)
Hence, the tc(test score) for a 0.95 confidence level when the sample is 19 is 2.101
Answer:
Step-by-step explanation:
We can write the following system of equations:
, with variables as defined in the question.
Multiply the first equation by 
and add both equations to isolate and solve for 
:
.
Answer:
0- $0
1-$15
2-$30
3- $45
I hope this is what u meant
Answer:
all triangles have 3 angles
Step-by-step explanation:
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