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Oksanka [162]
3 years ago
9

For conducting a​ two-tailed hypothesis test with a certain data​ set, using the smaller of n1minus1 and n2minus1 for the degree

s of freedom results in dfequals​11, and the corresponding critical values are tequalsplus or minus2.201. Using the formula for the exact degrees of freedom results in dfequals​19.063, and the corresponding critical values are tequalsplus or minus2.093. How is using the critical values of tequalsplus or minus2.201 more​ "conservative" than using the critical values of plus or minus​2.093?
Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0

Answer:

Step-by-step explanation:

Using the critical values of t=±2.201 is more "conservative" than using the critical value of ±2.093 because it is more likely to reject the null hypothesis using the greater value i-e t=±2.201

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Answer:

Step-by-step explanation:

Hello!

Given the regression equation

Credit= 17.9 - 0.09 Work

That was estimated from a sample of n= 21 statistic students.

Y: number of college credits taken

X: number of hours worked per week at an outside job

a)

The estimation for the slope is -0.09

As you see the estimated slope is negative, this means that the association between the two variables is indirect or inverse. Meaning, when the number of Work increases, the number of Credit decreases. (negative regression)

The correct option is: "An increase in the number of hours worked per week decreases the expected number of credits."

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The estimation for the intercept is 17.9

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I hope this helps!

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