Student t distribution calculator
[PDF File]Activity overview: - Texas Instruments
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tDistributions_Student.pdf. tDistributions_Student.doc. Click HERE for Graphing Calculator Tutorials. Problem 1 – Characteristics of the t Distribution. Discuss with students that the t distribution is used when n is small (less than 30) and the population standard deviation is unknown.
[DOC File]Confidence Interval for a Proportion
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Without calculator or if calculator does not have inverse t: Use a student’s-t distribution probability table. Value of t is found at the intersection of the column for the confidence level and row for degrees of freedom . YOU ARE NOT PERMITTED TO BRING A PRINTOUT OF THIS PAGE AS YOUR NOTES FOR AN EXAM OR QUIZ.
[DOCX File]STANDARD
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PS.19The student will identify the meaning of sampling distribution with reference to random variable, sampling statistic, and parameter and explain the Central Limit Theorem. This will include sampling distribution of a sample proportion, a sample mean, a difference between two sample proportions, and a difference between two sample means.
[DOC File]DISTRIBUTIONS on TI-83
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When you calculate a regression line, the value of r2 may not appear. If not, go to CATALOG and turn DagnosticsOn. DISTRIBUTIONS on TI-83. Under DISTR menu (=2nd VARS)
[DOC File]Z-Score Practice Worksheet
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Find the range of values that defines the middle 80% of the distribution of SAT scores (372 and 628). Find the z-scores - -1.28, 1.28. For a normal distribution, find the z-score that separates the distribution as follows: Separate the highest 30% from the rest of the distribution. .52. Separate the lowest 40% from the rest of the distribution. .25
Appendix I: Remedial Math Review
The student-t distribution, like the normal distribution, is continuous and symmetrical, but student-t distributions are more spread out with flatter peaks and thicker tails than normal distributions based on z-values. ... Answer the following questions using a handheld calculator and the tables for z-values and t-values. Check your answers ...
[DOC File]Instructors Notes for the t-distribution activity
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The t-distribution activity is a student based in class activity to illustrate the conceptual reason for the t-distribution. Students use TI-83/84 calculators to conduct a simulation of random samples. The students calculate standard scores with both the population standard deviation and the sample standard deviation.
[DOCX File]Central Bucks School District
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Conditions met Students t-distribution 1 sample t test. t= 589-521 37 100 = 18.378P(t > 18.378| df = 99) = 5.6007 x 10-34. We reject Ho b/c p-value of 5.6007 x 10-34 is < α = 0.05. We have sufficient evidence that the average score on the LSATs for Harvard freshman is greater than 521 points.
[DOC File]STAT 211
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Example 2: A sample of 15 students who had taken calculus class yielded the following information on brand of calculator owned: T H C T H H C T T C C H S S S (T: Texas Instruments, H: Hewlett Packard, C=Casio, S=Sharp). Estimate the true proportion of all such students who own a Texas Instruments calculator. Answer=0.2667
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