THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 2

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
You are the webmaster for your firm's web-site.From your records,you know that the probability that a visitor will buy something from your firm is 0.23.In one day,the number of visitors is 952.
-What is the probability that less than 200 of them will buy something from your firm? Use the normal approximation to the binomial.

• A)0.4279
• B)0.5721
• C)0.9279
• D)0.0721

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Definitions:

ANOVA

Short for Analysis of Variance, it's a statistical method used to compare means among three or more groups for statistical significance.

Levene Test

A statistical test used to assess the equality of variances for a variable calculated for two or more groups.

Tukey-Kramer

A statistical method used to perform multiple comparisons tests between group means in an analysis of variance setting.

Type I Error

The incorrect rejection of a true null hypothesis, also known as a false positive.