LINER
What is the L in LINER?
Linear
What is the X variable (or Explanatory variable)?
What is the independent variable plotted on the horizontal axis that helps us predict outcomes.
If you roll a standard 6-sided die, what is the probability of rolling an even number?
What is ½ or 50%?
Write the null and alternative hypothesis for the following experiment:
A tech company claims their new meditation app helps users fall asleep faster. The standard average time to fall asleep without the app is 20 minutes. Scientists want to know if the meditation app helps users fall asleep faster.
Ho: u = 20
Ha: u < 20
A set of subjects that data is being collected from is called…
What is the R in LINER?
Residual
What is the y-intercept?
This specific point is where the regression line intersects the vertical y-axis when (x = 0).
If you flip a fair coin three times, what is the probability of getting exactly three heads?
What is ⅛ or 12.5%
Write the null and alternative hypothesis for the following experiment:
A gardener wants to test if a new organic fertilizer increases the weight of tomatoes. The current average weight of their tomatoes is 5 ounces. Scientists want to know if the organic fertilizer produces heavier tomatoes.
Ho: u = 5
Ha: u > 5
The chosen group that data is being collected from is called…
What is the sample proportion?
What is the I in LINER?
Independent
What is (m)?
In the least-squares regression equation (hat{y} = mx + b), this letter represents the slope
When drawing a single card from a standard 52-card deck, this is the probability of drawing a red face card.
What is 3/26
Write the null and alternative hypothesis for the following experiment:
A fitness tech company designs a new wrist sensor to measure heart rate. They want to check if its readings differ from the gold-standard chest strap monitor, which reads exactly 72 beats per minute (bpm) during a standard resting test.
H0: u = 72
Ha: u =/= 72
A histogram is another name for a...
What is the N in LINER?
Normal
What are residuals?
A line of best fit minimizes the sum of the squares of these vertical distances from each data point to the line.
A bag holds 4 red, 3 blue, and 5 green marbles. The probability of randomly pulling out a marble that is NOT green.
What is 7/12
Write the null and alternative hypothesis for the following experiment:
An e-commerce store changes its checkout button color from blue to green. They want to see if it changes the daily click-through rate, which is currently 8%.
H0: p = 0.08
Ha: p =/= 0.08
A variable that is measured using characteristics or quality rather than numbers is called a...
What is a categorical variable?
What is the E in LINER?
What is Correlation measures the strength and direction of a relationship, while Linear Regression is used to predict a dependent variable based on an independent variable?
This is the primary difference between correlation and simple linear regression.
When you roll two standard 6-sided dice, this is the probability that the sum of the two numbers will equal 7.
What is ⅙ (6 possible winning combinations out of 36)
Write the null and alternative hypothesis for the following experiment:
A researcher tests whether drinking one cup of coffee before an exam alters student test scores. The historical average score on this exam is 75 points.
Ho: p = 75
Ha: p =/= 75
The effect of an observed relationship between two variables characterized by one variable being dependent on the other is called...