- a statistic that provides an estimate of a population parameter
- pointestimator
- The value of a statistic from a sample
- pointestimate
- gives an interval of plausible values for a parameter
- c%confienceinterval
- A confidence interval is sometimes refereed to as
- intervalestimate
- The difference between the point estimate and the parameter value will be less than this
- marginoferror
- gives the overall success rate of the method for calculating the confidence Interval
- confidencelevelc
- As the sample size n increases the standard deviation of the statistic does what?
- decrease
- When the standard deviation of a statistic is estimate from data, he result is called this.
- standarderror
- also known as standard error of the mean
- standarerrorofsamplemean
- a formal procedure for using observed data to decide between two competing claims
- significancetest
- This is the claim we seek evidence against
- nullhypothesis
- The claim we hope or suspect to be true instead of the null hypothesis
- alternativehypothesis
- The alternative hypothesis is this if it states that a parameter is larger than the null hypothesis value or if it states that the parameter is smaller than the null value
- one-sided
- The alternative hypothesis is this if it states that the parameter is different from the null hypothesis value(it could be either larger or smaller)
- two-sided
- The probability that measures the strength of the evidence against the null hypothesis and in favor of the alternative hypothesis
- p-value
- If our sample result is too unlikely to have happened by chance assuming the null hypothesis is true, then you do this
- reject
- If there is no convincing evidence for the alternative hypothesis, then you do this
- failtoreject
- If we reject the null hypothesis when it is actually true
- typeierror
- If we fail to reject the null hypothesis when the alternative hypothesis is actually true.
- typeiierror
- if the p value is smaller than the significance level the data is statistically significant where?
- Alphalevel

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