Null and alternative hypothesis-critical values

Assignment Help Basic Statistics

Reference no: EM13110954

Identifying H0and Hr in ex 5-12 , examine the given statement , then express the null hypothesis H0 and alternative hypothesis H1 in symbolic form.

1. The mean IQ of statistics students is at least 110.

2. The percentage of men who watch golf on tv is not 70%, as is claimed by the Madison Advertising Company.

Finding Critical Values. In Exercises 13-20 , find the critical z values. In each case ,assume that the normal distribution applies.

3. Two-tailed test: alpha = 0.01

4. Left-tailed test; alpha=0.05

Reference no: EM13110954

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