### Introduction of one way analysis of variance

Assignment Help Basic Statistics
##### Reference no: EM1315602

Suppose that a researcher does a study to see how level of anxiety (A1 = low, A2 = medium, A3 = high) is used to predict exam performance (Y).

Run a one way ANOVA on these scores; request contrasts between group 2, medium Anxiety, and each of the other groups. Do a point-by-point comparison of the numerical results for your ANOVA printout and the numerical results for the regression in part c, pointing out where the results are equivalent.

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Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group, (a) Make a bar chart and describe it.

#### Hypothesis testing by chi-square distribution

Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group Perform the chi-square test for a unif

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