Download TI-83 or TI-84 Calculator Instructions for Statistics To enter ... and more Study notes Statistics in PDF only on Docsity! TI-83 or TI-84 Calculator Instructions for Statistics To enter data into a list 1. Choose STAT, EDIT, Edit 2. Enter the data into a vertical list (and remember the appropriate list number (e.g., L2) for use later To find descriptive statistics 1. Enter your data in a list 2. Choose STAT, then CALC, then 1-Var Stats 3. Enter the appropriate list (e.g., L1) and enter It will look like: 1-Var Stats L1 To find probably from a normal distribution when asked to find P(lower<X<upper) 1. Choose DISTR, normalcdf 2. Inside the parentheses, enter the following (in the following order): Lower limit, upper limit, mean, stddev It will look like: normalcdf (lower, upper, mean ,stddev) (note that if z, mean=0 and stddev=1) (note that is there is no lower limit, use negative infinity; if there is no upper limit, use positive infinity) To find x0 from a normal distribution such that P(X < x0) 1. Choose DISTR, invnorm 2. Inside the parentheses, enter the following (in the following order): probability in a less than direction, mean, stddev It will look like: invnorm (prob, mean, stddev) (note that if z, mean=0 and stddev=1) (note that if X̅, you must enter stddev/√n for stddev) To find P(X=x) from a binomial distribution 1. Choose DISTR, binompdf 2. Inside the parentheses, enter the following (in the following order): n, p, x It will look like: binompdf (n,p,x) To find P(X≤x) from a binomial distribution 1. Choose DISTR, binomcdf 2. Inside the parentheses, enter the following (in the following order): n, p, x It will look like: binomcdf (n,p,x) To calculate the least squares regression line 1. Enter the x data into a list and the y data into a list 2. Choose STAT, CALC, LinReg(a+bx) 3. Enter the appropriate lists corresponding to x,y If x-data is stored in L1 and y-data is stored in L2, it will look like: LinReg(a+bx) L1,L2 4. The equation will appear with a=y-intercept and b=slope To calculate residuals 1. Proceed as above with least square regression line 2. STAT, EDIT, Edit 3. Choose an empty list and above the horizontal line enter the equation replacing the appropriate list for x (e.g., 1.1+2L1). Press enter and the list will populate with the predicted values of y according to the equation of the line. 4. Choose an empty list and above the horizontal line enter the equation for residuals (observed y – predicted y) using the appropriate list numbers (e.g., L2 – L3). Press enter and the list will populate with the residuals. To create a Box-Plot 1. Enter data into a list 2. Choose StatPlot 3. For a single Box-Plot, Select Plot1 4. Select On 5. Choose the box-plot (either first or second on the second line of choices) and enter the appropriate list numbers 6. Choose Zoom and ZoomStat, enter To enter multiple Box-Plots on the screen, choose Plot2 and repeat. You can put up to 3 on the screen at once.
