Estiimation

Question 1

three forms of statistical inference in this unit

Answer 1

Point estimation

Interval estimation

Hypothesis testing

Question 2

In point estimation, we estimate an ________using_____

Answer 2

In point estimation, we estimate an unknown parameter using a single number that is calculated from the sample data.

Question 3

In interval estimation, we estimate an unknown parameter using _______________________________________ (and state _____________that this interval indeed ______ the true value of the parameter).

Answer 3

In interval estimation, we estimate an unknown parameter using an interval of values that is likely to contain the true value of that parameter (and state how confident we are that this interval indeed captures the true value of the parameter).

Question 4

In hypothesis testing, we have some _______________, and we check whether or not ________________________________________________.

Answer 4

In hypothesis testing, we have some claim about the population, and we check whether or not the data obtained from the sample provide evidence against this claim.

Question 5

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Question 6

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Question 7

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Question 8

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Question 9

Our point estimates are truly unbiased estimates for the population parameter only if _________________________________________

Answer 9

Our point estimates are truly unbiased estimates for the population parameter only if the sample is random and the study design is not flawed.

Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 16

The idea behind interval estimation is to ___________________ by supplying information about___________________

Answer 16

The idea behind interval estimation is to enhance the simple point estimates by supplying information about the size of the error attached.