Examlex
Mary examined a random sample of Friday withdrawals from a college campus ATM. She hypothesized that the mean was less than $100. The results shown below are from MegaStat. What would Mary conclude from this test? Explain carefully.
Hypothesis Test: Mean vs. Hypothesized Value
hypothesized value
mean Withdrawal
std. dev.
std. error
n
16 df
t
p-value (one-tailed, lower)
Regression Line
A straight line that best represents the relationship between an independent variable and a dependent variable in linear regression analysis.
Scatterplot
A type of graph used in statistics to display values for typically two variables for a set of data.
Regression Line
A straight line that describes how a response variable y changes as an explanatory variable x changes, in linear regression analysis.
Best-Fitting Line
A line through a scatter plot of data points that best expresses the relationship between those points, often determined by the method of least squares.
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