For this question, why one tail of the p-value = 0.0009
For this question, why one tail of the p-value = 0.0009 Pheromones in Tears: Test 1...
Find the p-value for a test statistic of t=−2.34, n=32 for a left-tail test.
Part 1) The critical value of t at a .01 level in a one-tail test will equal the critical value of t for a two-tail test at what level of significance? .05 .10 .20 None of these Part 2) The critical value of t at a .05 level in a two-tail test will equal the critical value of t for a one-tail test at what level of significance? .025 .10 .20 None of these
In a lower tail hypothesis test situation, the p-value is determined to be .2. If the sample size for this test is 51, the t statistic has a value of a. -.849. b. 1.299. c. -1.299. d. .849.
(20 points) (a) Find the P - value for the test statistic z = -1.41 for the following null and alternative hypotheses: Ho: The population mean is 50 Ha: The population mean is less than 50. . The P - value is 0.0793 (b) Find the P - value for the test statistic z = -1.41 for the following null and alternative hypotheses: Ho: The population mean is 50. Ha: The population mean is not equal to 50. The P...
Consider the following hypothesis test: H0: p .8 Ha: p > .8 A sample of 500 provided a sample proportion of .853. 16. Determine the standard error of the proportion. 17. Compute the value of the test statistic. 18. Determine the p-value; and at a 5% level, test the above the hypotheses.
(1 point) (a) Find the P - value for the test statistic z=−1.15 for the following null and alternative hypotheses : H0: The population mean is 10. Ha: The population mean is less than 10. The P - value is .1251 (b) Find the P - value for the test statistic z=−1.15 for the following null and alternative hypotheses: H0: The population mean is 10. Ha: The population mean is not equal to 10. The P - value is
Z and P-Value needed. double-check answers thank you! A random sample of 146 recent donations at a certain blood bank reveals that 83 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01. State the appropriate null and alternative hypotheses. TO Ho: p = 0.40 Ha: p < 0.40...
This problem is used for Questions 11-15. One question in the 2018 General Social Survey is "Do you think the use of marijuana should be made legal or not?". The results are as follows: 455 of the 676 male respondents supported marijuana legalization and 483 of the 771 female respondents supported marijuana legalization. Find the sample proportions, P, and 2 of marijuana legalization supporters in males and females. Find a 95% confidence interval for the difference between the population proportions...
Calculate the test statistic and p-value for each sample.(Round your test statistics to 2 decimal places and p-values to 4 decimal places.) Note: xnumber of successes Test Statistic p-value (a) H0: p=0.60 versus Ha: p > 0.80, α=.05, x=56, n = 80 (c) Ho, p-0.10 versus HA: p 0.10, a-.01, x-3. n-100
Perform a chi-square independence test using either p-value or critical value approach, provided the conditions for using the test are met. Be sure to state the hypotheses and the significance level, to obtain the expected frequencies, to obtain the critical value, to compute the value of the test statistic, and to state your conclusion. 4) The table below shows the age and favorite type of music of 668 randomly selected people. Rock Jazz Classical 15-25 50 85 73 25-35 68...