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15 Cards in this Set

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