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15 Cards in this Set
- Front
- Back
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A p value of .3 will almost never be enough evidence to reject H0
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True
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An alternative hypothesis of H1: = with a line through it idicates a one sided test
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False
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The null hypothesis is always a statement of inequality
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False
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A significance level of 95% is very commonly used.
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False
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A survey that reporting a value of 45% plus or minus 3% means the true value is actually between 42 and 48&
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False
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A statistically significant difference is one that is caused by chance.
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False
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If a test shows a significant difference then a type I error may have been made
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True
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Another name for significance level is the
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alpha level
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The p value is compared to ----------------when deciding whether to reject H0
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Alpha
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When determining a confidence interval we are trying to estimate
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population parameter
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If we reject H0 when it is true then we have made a ---------error
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Type I
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the midpoint of a confidence interval for p is
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p hat
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John did a single sided hypothesis test and found a p value of .035. Jan did a two sided test with same data. Her p value would be
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.07 multiply by two
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If the p value is larger than alpha then we
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dont reject H0
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If the sample mean is 10, the standard deviation is 6, and the sample size is 4, then the standard error of the sample mean is
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3 6/square root of 4
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