Words were displayed on a computer screen with background colors of red and blue. Results from scores on a test of word recall are given below. Use a 0.05 significance level to test the claim thatthe samples are from populations with the same standard deviation. Assume that both samples are independent simple random samples from populations having normal distributions. Does thebackground color appear to have an effect on the variation of word recall scores?Red BackgroundBlue BackgroundWhat are the null and alternative hypotheses?OA H₂:0²=0²₂2H₁: 0²1 20²2nXS34 15.35 5.9437 12.49 5.43*C. H₂:0² = 0²/c.H₁:0² #0²/2Identify the test statistic.F = (Round to two decimal places as needed.)***B. H₂:0² = 0²H₁:0² <0²OD. H₂:0² #0²/2H₁:0² = 0²

Consider population of Red background scores as and that of Blue background scores as .Sample sizes…

background color appear to have an effect on the variation of word recall scores? X S n 34 15.35 5.94 37 12.49 5.43 Red Background Blue Background What are the null and alternative hypotheses? OA. Ho: ?=0 H₁:0² 20² *C. Hg: 0 = 0² H₁:0² #0² Identify the test statistic. F=(Round to two decimal places as needed.) KII B. H₂:0² = 0² H₁:0² <0² OD. H₂:02 #0²/ H₁:0² = 0²

background color appear to have an effect on the variation of word recall scores? X S n 34 15.35 5.94 37 12.49 5.43 Red Background Blue Background What are the null and alternative hypotheses? OA. Ho: ?=0 H₁:0² 20² *C. Hg: 0 = 0² H₁:0² #0² Identify the test statistic. F=(Round to two decimal places as needed.) KII B. H₂:0² = 0² H₁:0² <0² OD. H₂:02 #0²/ H₁:0² = 0²

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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