The following section is about the Unit 4 – Inference in Statistics

Concerning your OLDER decade; the mean was _______ the SD was _______ the sample size was _______   Note: Label your answers with each statistic on a new line

For a class of students, the association between GPA and SAT math score is roughly linear.  The equation of the least-squares regression line relating y = SAT math score to x = GPA is  = 410.54 + 67.3x.  Predict the SAT math score for Jessica, who has a 3.00 GPA.  

Suppose the lengths of green beans for a particular farm are Normally distributed with a mean of 7 inches and a standard deviation of 1.2 inches. The z-score for a selected green bean is 2.3. What does this tell us about the length of the selected green bean? 

Time magazine reported in a 2004 survey of 507 randomly selected adult American Catholics, that 279 answered yes to the question “Do you favor allowing women to be priests?” A test of hypothesis was conducted to determine if this data shows that the population proportion of adult American Catholics who favor allowing women to be priests is more than 50%.    If they obtained a p-value of p=0.0118, what conclusion should they make based on an alpha level of 0.05?

A ___________________ type of family would emphasize obedience to authority and reluctance to share thoughts and feelings.

A ____________________ is when one person “breaks the rules” in a relationship.

Upload your previously done work or type your answers below 5. Given your conclusion in Number (4) right above, which kind of mistake – a Type 1 or a Type II error – could you have made? Explain what this mistake would mean in context.

The following section is cumulative material from the entire six-week course that is NOT Unit 4

A 95% confidence interval for the mean reading achievement score for a population of third-grade students is (44.2, 54.2).  Suppose you compute a 90% confidence interval using the same data.  Which of the following statements is correct?