https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/one-sample-t-test-mean/v/writing-hypotheses-for-significance-test-about-means 2022-10-07T00:58:19.561984208Z Writing hypotheses for a significance test about a mean Example of constructing hypotheses for a test about a mean video https://cdn.kastatic.org/ka_thumbnails_cache/72a9061c-1525-4da6-92bb-5e70626cca63_1280_720_base.png Writing hypotheses for a significance test about a mean Example of constructing hypotheses for a test about a mean https://cdn.kastatic.org/ka-youtube-converted/89Dp9Xq4eaA.mp4/89Dp9Xq4eaA.mp4 154 One-sample t-tests https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/one-sample-t-test-mean/e/writing-hypotheses-one-sample-t-test-mean 2021-07-01T02:19:29Z Writing hypotheses for a test about a mean Practice writing the null and alternative hypotheses in a one-sample t test for a mean Jeff Dodds exercise https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/one-sample-t-test-mean/v/conditions-t-test-mean 2022-10-07T00:58:19.561984208Z Conditions for a t test about a mean Example showing how to check which conditions have been met for a t test about a mean video https://cdn.kastatic.org/ka_thumbnails_cache/48d4e55e-af37-4fa2-9266-d6b4d7aabaf1_1280_720_base.png Conditions for a t test about a mean Example showing how to check which conditions have been met for a t test about a mean https://cdn.kastatic.org/ka-youtube-converted/GtokpL4f32s.mp4/GtokpL4f32s.mp4 348 One-sample t-tests https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/one-sample-t-test-mean/e/checking-conditions-one-sample-t-test-mean 2021-07-01T02:19:32Z Conditions for a t test about a mean Check whether or not the the conditions have been met for a one-sample t test for a mean Jeff Dodds exercise https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/v/example-calculating-t-statistic-for-signficance-test 2024-01-19T18:46:06.800206322Z Example calculating t statistic for a test about a mean The lesson demonstrates conducting a t-test for a population mean with a teacher experience sample. It explains the t-statistic calculation and the p-value interpretation to test a null hypothesis. This process helps ascertain if the true mean is less than the hypothesized mean. video https://cdn.kastatic.org/ka_thumbnails_cache/bcedcbed-48bf-4354-9c3d-d9912f61390d_1280_720_base.png Example calculating t statistic for a test about a mean The lesson demonstrates conducting a t-test for a population mean with a teacher experience sample. It explains the t-statistic calculation and the p-value interpretation to test a null hypothesis. This process helps ascertain if the true mean is less than the hypothesized mean. https://cdn.kastatic.org/ka-youtube-converted/BJl9WA787-Q.mp4/BJl9WA787-Q.mp4 302 One-sample t-tests https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/e/test-statistic-t-test 2021-07-01T02:19:34Z Calculating the test statistic in a t test for a mean Practice calculating the test statistic in a one-sample t test for a mean Jeff Dodds exercise https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/v/using-ti-calculator-for-p-value-from-t-statistic 2022-11-16T04:22:43.7414897Z Using TI calculator for P-value from t statistic In a significance test about a population mean, we first calculate a test statistic based on our sample results. We can then use technology to calculate the p-value based on that test statistic using a t distribution with n-1 degrees of freedom. video https://cdn.kastatic.org/ka_thumbnails_cache/f1dae93a-63fe-46a5-a27e-ef38b4364873_1280_720_base.png Using TI calculator for P-value from t statistic In a significance test about a population mean, we first calculate a test statistic based on our sample results. We can then use technology to calculate the p-value based on that test statistic using a t distribution with n-1 degrees of freedom. https://cdn.kastatic.org/ka-youtube-converted/M2P96TJMEaM.mp4/M2P96TJMEaM.mp4 199 One-sample t-tests https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/v/calculating-p-value-from-t-statistic 2022-11-16T04:22:43.7414897Z Using a table to estimate P-value from t statistic In a significance test about a population mean, we first calculate a test statistic based on our sample results. We can then use a table to estimate the p-value based on that test statistic using a t distribution with n-1 degrees of freedom. video https://cdn.kastatic.org/ka_thumbnails_cache/bb0a485b-7a0a-49da-bf4b-e24c9b5e73a7_1280_720_base.png Using a table to estimate P-value from t statistic In a significance test about a population mean, we first calculate a test statistic based on our sample results. We can then use a table to estimate the p-value based on that test statistic using a t distribution with n-1 degrees of freedom. https://cdn.kastatic.org/ka-youtube-converted/z-HSsVARNnk.mp4/z-HSsVARNnk.mp4 293 One-sample t-tests https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/e/p-value-t-test-mean 2021-07-01T02:19:30Z Calculating the P-value in a t test for a mean Practice calculating the P-value in a one-sample t test for a mean Jeff Dodds exercise https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/v/comparing-p-value-from-t-statistic-to-significance-level 2022-10-07T00:58:19.561984208Z Comparing P-value from t statistic to significance level Example showing how to compare the P-value to a significance level to make a conclusion in a t test. video https://cdn.kastatic.org/ka_thumbnails_cache/e8692e6b-176c-40d4-bc6e-65404d7b2eef_1280_720_base.png Comparing P-value from t statistic to significance level Example showing how to compare the P-value to a significance level to make a conclusion in a t test. https://cdn.kastatic.org/ka-youtube-converted/I5WSC_iRtwE.mp4/I5WSC_iRtwE.mp4 219 One-sample t-tests https://www.khanacademy.org/math/ap-statistics/xfb5d8e68:inference-quantitative-means/xfb5d8e68:carrying-out-test-mean/e/conclusions-one-sample-t-test-mean 2021-07-01T02:19:32Z Making conclusions in a t test for a mean Make conclusions in a one sample t test for a mean based on the p-value and significance level. Jeff Dodds exercise