# Linear Models-Analysis of One-Way Classified Data (ISS (Statistical Services) Statistics Paper II (Old Subjective Pattern)): Questions 1 - 1 of 1

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## Question number: 1

» Linear Models » Analysis of One-Way Classified Data » Mixed Model

Appeared in Year: 2014

### Describe in Detail

A manufacturer of television sets is interested in the effect on tube conductivity of five different types of coating for color picture tubes. Sample means are

Error sum of squares = 54.0

(i) Is there a difference in conductivity due to coating type? F-value = 3.09

(ii) Determine which pair differs significantly using Bonferroni t-interval. Comment on the same.

### Explanation

(i)

Test the null and alternative hypothesis is

H _{0 }: There is no difference in the means of conductivity due to coaching type:

H _{1 }: At least one mean is different from others.

Assume that the testing of hypothesis at 0.05 level of significance.

Given that