Identify and match each hypothesis as null or alternative.

Instructions: How to Navigate Matching Activity Matching activity with 3 items in one column, and 2 items in another column. Tab through items in any of the columns and use space or enter to select the item. Once an item is selected, tab through the items in the other column and use space or enter to link the two list items.

Alternative hypothesis

Null hypothesis

Hand soap decreases bacterial diversity.

Hand soap increases bacterial diversity.

Hand soap does not affect bacterial diversity.