Find the p-value for the following scenarios. Round your answers to 4 decimals.1) Right-tailed test; test statistic value t– 2.94; degrees of freedom df = 8; p-value =%3D2) Right-tailed test; test statistic value t1.01; degrees of freedom df = 5; p-value3) Left-tailed test; test statistic valuet =0.8; degrees of freedom df17; p-value

Answered: Find the p-value for the following…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Given: u = 500 ( Population mean score for a Standardized Biology exam. 0 = 30 (Population mean score for a Standardized Biology exam. %3D Eighty-one (81) scores were selected at random. The mean, X-bar, was calculated. 3. Find P( X-bar 510). . 5. Find P( 480 < X-bar < 520) · Given : The average test score (u) in 2020 of a Standardized Accounting Exam was 550 with a population standard deviation (o) of 45. 6. . Find Lowest Test Score x which is in the 95" Percentile. 7. Find Lowest Test Score x which is in the 75" Percentile. 8. Find Lowest Test Score x which is in the 25" Percentile. 75t 25 that an Independent Education Research team desires to estimate the populatie The sample mean was 3.15.
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Left tail test with Zcalc = -2.26. What is the p-value of the test?
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What stats test should be used to solve the following? A positive psychologist compares whether levels of gratitude in a random sample of n = 50 students at her college (M = 40) differ from the mean of college students across the US (μ = 45). A sports psychologist tested the reaction time of 320 college athletes. She found their average reaction time in a controlled task to be .77 seconds (s = 21). She wondered if the college athletes had faster reactions times than college students on average, who typically reacted in 1.23 seconds. A school psychologist obtained a sample of 120 fourth-grade kids who engaged in remote learning only during the COVID-19 pandemic. She found their average anxiety score to be M = 168. He compared that mean to the average anxiety score of fourth-grade children before the pandemic, which was μ = 144, with a ?=12σ=12. Did the sample of kids engaged in remote learning have a significantly different level of anxiety?
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If you look at the differences between the means, once with 10 participants and one mean with 20 participants. (same data set) One mean difference is very large, but non-significant and the other is very small, but came out significant. What could be the reason for this outcome? (My difference in means was with 10 participants: -1.1 and with 20 participants: -5.1)
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2. (MMC 6.43). The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Each score ranges from 0 to 200. The mean attitude score for U.S. college students is about 110, and the standard deviation is about 25. A teacher who suspects that older students have better attitudes toward school gives the SSHA to 25 students who are at least 30 years of age. Their mean score is = 118.3. a. Assuming that o = 25 for the population of older students, carry out a test of Họ: H = Ha:u > 110 Report the P-value of your test and state your conclusion clearly. = 110 b. What are the required assumptions in part (a)?
two tail test with Zcalc = -1.74. What is the p-value of the test?

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