# 2 sample proportion test calculator

##### [DOC File]Statistics Calculator - My Math Genius

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Instead of continuing to put formulas into your calculator to compute confidence intervals, test statistics, and sample sizes, this calculator will compute with only a few inputs in no time! Three worksheets are provided: Confidence Interval, Hypothesis Testing, and Sample size determination. ... Example 2: Proportion Hypothesis Test.

##### [DOCX File]Humble Independent School District

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-value for 99% confidence is 2.756, so the interval is , or . [Using a calculator and 53.64 degrees of freedom, the interval is ]. Conclude: We are 99% confident that the interval from 0.22 to 5.98 captures the true difference in the mean amount of Tab-a-Cat Fern eats and the mean amount of Chow Lion she eats.

##### [DOC File]Section 1

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Perform a significance test for the difference between two population proportions. Vocabulary: None new. TI-83 Calculator Help: 2 Sample t-Test and Confidence Interval. If you have raw data: enter data in L1 and L2. Press STAT, TESTS, select 2-SampT-Test. raw data: List1 set to L1, List2 set to L2 and freq to 1. summary data: enter as before ...

##### [DOCX File]Mrs. Venneman

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Suppose that at North, 70% of the smartphones are iPhones and that at Central, 60% of the phones are iPhones. Nick selects a random sample of 100 smartphone owners in his school and Chris selects a random sample of 80 smartphone owners at his school. Let be the difference in the sample proportion of smartphones that are iPhones at these schools.

##### [DOCX File]University of Arizona

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proportion. of successes in two populations. Notation is similar to what was used in two – sample . t . statistics and in one – sample proportions: We are comparing the populations by doing inference on the difference between population proportions ( p 1 - p 2 ) by using the sample proportions 1 − 2

##### [DOC File]Stats 156 – Calculator Stuff

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One Sample z Test for a Population Proportion. In STAT – inside TESTS. 1. 1-PropZTest. p0 = hypothesized value of proportion. x = number of successes. n = sample size. One Sample t Test (or z Test) for a Population Mean. ... 2. Run χ2 test in calculator (not the program)

##### [DOC File]Thursday, February 3:

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Can you use your calculator for the Do step? Are there any drawbacks? HW #23: page 629 (1–11 odd) Day 2: Significance Tests for a Difference in Proportions. Read 619–624 On 620, make sure students can give the 2 explanations! What are the conditions for conducting a two-sample z test for a difference in proportions? Same as the CI!

##### [DOC File]Hypothesis Testing and Confidence Intervals

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INFERENCE PROCEDURE CONDITIONS TEST STATISTIC CONFIDENCE INTERVAL CALCULATOR Two Mean ’s are UNKNOWN. 2 Sample t-test. 2 Sample t-interval SRS for both? Normal for both? (Is n large enough? If not GRAPH BOTH!) Independent? If random, OK. df = smallest of and . or ugly formula df = smallest of and . or ugly formula Stats/Test/ 2samplettest or ...

##### [DOC File]The Practice of Statistics

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Summarize the one-sample z test for a proportion and sketch the three possible ’s. ... What are the calculator commands for the two-sample z test and interval for ? Comparing Two Means (pp.627-648) Summarize the three properties of a sampling distribution of a sample mean:

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