posside You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be \( 95 \% \) confident that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. \( \mathrm{n}=\square \) (Round up to the nearest integer.) b. Assume that a prior survey suggests that about \( 37 \% \) of air passengers prefer an aisle seat. \( \mathrm{n}=\square \) (Round up to the nearest integer.)

The scatter plot and line of best fit below show the length of 12 people's femur (the long leg bone in the thigh) and their height in centimeters. W is the meaning of the \( y \)-value on the line when \( x=40 \) ?

Hunter's math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws the line of best fit. What does the point \( (2.5,81.6) \) represent?

Eli decides to research the relationship between the length in inches and the weight of a certain species of catfish. He measures the length and weight of a number of specimens he catches then throws back into the water. After plotting all his data, he draws a line of best fit. What does the point \( (45,71.4) \) represent?

Sophie's math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws the line of best fit. What is the meaning of the \( y \)-value on the line when \( x=1 \) ?

Fabian's math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws the line of best fit. What does the slope of the line represent?