Data Were Collected on Hand Grip Strength of Adults

question 1

Multiple Choice

Data were collected on hand grip strength of adults. The histogram below summarizes the data. Which statement is true about the distribution of the data shown in the graph?

• A)There must have been a mistake made in data collection because the distribution should be bell- shaped.
• B)The graph shows evidence that two different groups may have been combined into one collection.
• C)The best estimate of typical grip strength is 80- 90 pounds because it is in the center of the distribution.
• D)The graph is useless because it is bimodal.

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Definitions:

Ordinal Data

Data classified into categories within a specific order or ranking, but without meaningful mathematical differences between those rankings.

Type II Error

The error that occurs when the null hypothesis is not rejected when it is actually false, also known as a false negative result.

Type I Error

Mistakenly refusing a true null hypothesis, popularly known as a "false positive."

Nominal Data

Data that are categorized into distinct groups without implying any ranked order among them.