Question

2. + _,3.75 points MDasicSta17 27.E 502XP. when do you use an NOVA test? when you want to test if the means of three or more populations are equal when you want to test if the means of two or more populations are equal O when you want to test if the variances of three or more populations are equal O when you want to test if the standard deviations of less than four populations are equal O when you want to tast if the variancas of at most four populations ara cqual -/3.75 ponts MHascstat7 27.E509XP An F statistic can havc what values? greater than or less tan zero graater than zaro lass than zero greater than or equal to zero less than or equal to zero Submit Answer Save Progress 4. + -/3,75 points MDasicStat7 27.C.517ΧΡ A video game developer is testing a new game on three ditterent groups. Each group represents a ditterent target market for the game. The developer collects scores from a random sample from each group. The results are shown in the tollowing table Group A Group B Group 101 108 151 101 149 198 195 161 107 126 What is the F Statistic? (Round your answer to two declmal places.)

Answer 1

Answer - 1: When we need to compare three or more population means then we use ANOVA. Hence,

Option A is correct.

Answer - 2: Greater than 0; Option B is correct.

Answer - 3: The statistical software output for this problem is:

ANOVA table

Source	DF	SS	MS	F-Stat	P-value
Columns	2	5738.5333	2869.2667	3.626933	0.0586
Error	12	9493.2	791.1
Total	14	15231.733

Hence,

F - statistic = 3.63