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A way to reduce both type 1 and type 2 errors is to decrease sample size is this statement true?
False, Increase the sample size.
In the construction of confidence interval if all other quantities are unchanged an increase in the sample size will lead to a wider interval is this statement is true or false?
True
A sample group is a small group from which data is collected?
False
Stimulants increase your ability to drive safely true or false?
false
With a technically proper random probability sample statistical errors can be eliminated?
false
True or False For a given level of significance if the sample size is increased the probability of comitting a Type II error will increase?
The statement is false. For a fixed alpha, an increase in the sample size will cause a decrease in beta (but an increase in the power).
A way to reduce both type 1 and type 2 errors is to decrease sample size is this statement true?
False, Increase the sample size.
Is a major drawback f for behavioral based detection is the increased number of false negatives?
Wrong. False positives. Why? One of the major drawbacks from this type of approach [BIDS] is the increase number of false positives.
Total variable cost does not increase in proportion to output is it true?
False, it is the fixed cost which is not increased or decreased with proportion to output.
In the construction of confidence interval if all other quantities are unchanged an increase in the sample size will lead to a wider interval is this statement is true or false?
True
Increased blood pressure would decrease the amount of fluid leaving the capillaries?
False, would increase the amount of fluid leaving the capillaries.
True or false a sample is a subset of a population?
True
Is it true or false that the frequencies of radiation increase as the wavelengths increase?
False. The frequencies of radiation decrease as the wavelengths increase. This is because frequency and wavelength are inversely proportional in the electromagnetic spectrum.
Is it true or false increased preesure equals increased density?
Yes it true.
A sample group is a small group from which data is collected?
False
When an enzyme binds with its substrate the activation energy needed for the chemical reaction to occur is increased True or False?
False. When an enzyme binds with its substrate, the activation energy needed for the chemical reaction is decreased, not increased. This reduction in activation energy allows the reaction to occur more quickly and at lower temperatures, making it easier for the reaction to proceed.
The histogram of a sample should have a distribution shape that is skewed. Is this true or false?
False. It can be skewed to the left or right or be symmetrical.
