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What is the representation of the following figure? 

The t distribution should be used whenever ___________________________________________________________________________________.

In hypothesis testing if the null hypothesis has been rejected when the alternative hypothesis has been true, _______________________________________________________.

A sample statistic, such as , that estimates the value of the corresponding population parameter is known as a ______________.

Exhibit 8-2 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is one minute. Refer to Exhibit 8-2. The 95% confidence interval for the average checkout time of all customers is___________. CI= x ± z · σ n z dsistribution table from 0.0 to 2.49.jpg

When studying the relationship between two quantitative variables, whenever we want to predict an individual value of y for a new observation corresponding to a given value of x, we should use a(n): _______________________________.

In the hypothesis testing procedure, α is ____________________________________.

The function that defines the probability distribution of any continuous random variable is a ____________________________.

An example of statistical inference is _________________________________.

The symbol σ2 is used to represent the ____________________________________________________________.