Question

The null and alternative hypotheses are given. Determine whether the hypothesis is left-tailed, right-tailed, or two-tailed. Also, identify the parameter being tested.

1) Left-tailed; Mean
2) Right-tailed; Median
3) Two-tailed; Standard Deviation
4) Two-tailed; Proportion

Answer 1

The null and alternative hypotheses are given and the type of test and parameter being tested for each statement is determined.

Step-by-step explanation:

1. Left-tailed test; parameter being tested is the Mean.
2. Right-tailed test; parameter being tested is the Median.
3. Two-tailed test; parameter being tested is the Standard Deviation.
4. Two-tailed test; parameter being tested is the Proportion.