Question

Which statement is an example of an alternative hypothesis? A. A particular industrial process manufactures windshields with an average length of 33 inches. B. The average quantity of detergent put into a box by a filling machine greater than one pound. C. The shipping company’s average delivery time is 3 days. D. The average thickness of an aluminum sheet is 0.03 inches, as required.

Answer 1

B. The average quantity of detergent put into a box by a filling machine greater than one pound

Explanation:

The alternative hypothesis, is the alternative to the null hypothesis that states that there is some kind of relation as opposed to the the null hypothesis that states that there is no relation between the phenomena whose relation is under investigation (or at least not of the form given by the alternative hypothesis).

The alternative hypothesis can be two-sided, or one-sided in which case the direction of the hypothesized relation, positive or negative, is fixed in advance.

Answer 2

B. The average quantity of detergent put into a box by a filling machine greater than one pound

Explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean. From the case above option B "The average quantity of detergent put into a box by a filling machine greater than one pound" tries to establish a difference between the variable ("quantity of detergent put into a box by a filling machine") is different from its average/mean