P (z>2.3)
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0.0107
What is H0?
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null hypothesis (describes an exciting theory)
Find the mean, variance, and standard deviation if u= 10, std. dev. = 2, and n=25
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Mxbar =10, variance= 0.16, std. dev. =0.4
Suppose we will randomly select a sample of 64 measurements from a population
having a mean equal to 20 and a standard deviation of 4. Calculate the probability
that we will obtain a sample mean less than 19.385.
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0.1093
How do you calculate a z-score?
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(value-mean)/standard deviation
What is the total area under the curve if f(x) always equal to?
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1 or 100%
Is calculating population mean easy to do?
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usually no, which is why we take samples
What percent of the area under the normal curve is within 1 standard deviation to the
left and right?
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68.26
What is P?
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population proportion (# of responses of interest / N)
What is N?
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population size
How large does a sample size have to be in order to be considered normal?
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Give this one a try later!
0.0107
What is H0?
Give this one a try later!
null hypothesis (describes an exciting theory)
Find the mean, variance, and standard deviation if u= 10, std. dev. = 2, and n=25
,Give this one a try later!
Mxbar =10, variance= 0.16, std. dev. =0.4
Suppose we will randomly select a sample of 64 measurements from a population
having a mean equal to 20 and a standard deviation of 4. Calculate the probability
that we will obtain a sample mean less than 19.385.
Give this one a try later!
0.1093
How do you calculate a z-score?
Give this one a try later!
(value-mean)/standard deviation
What is the total area under the curve if f(x) always equal to?
Give this one a try later!
1 or 100%
Is calculating population mean easy to do?
, Give this one a try later!
usually no, which is why we take samples
What percent of the area under the normal curve is within 1 standard deviation to the
left and right?
Give this one a try later!
68.26
What is P?
Give this one a try later!
population proportion (# of responses of interest / N)
What is N?
Give this one a try later!
population size
How large does a sample size have to be in order to be considered normal?
Give this one a try later!
