Summary Statistics Are Given for Independent Simple Random Samples from Two

question 92

Multiple Choice

Summary statistics are given for independent simple random samples from two populations. Use the pooled t-intervalprocedure to obtain the specified confidence interval.
- $\overline { \mathrm { x } } _ { 1 } = 72.9 , \mathrm {~s} _ { 1 } = 10.4 , \mathrm { n } _ { 1 } = 16 , \overline { \mathrm { x } } _ { 2 } = 68.0 , \mathrm {~s} _ { 2 } = 8.3 , \mathrm { n } _ { 2 } = 12$
Determine a $90 \%$ confidence interval.

• A)\(0.10\) to \(9.70\)
• B) \(0.88\) to \(8.92\)
• C) \(- 1.99\) to \(11.79\)
• D) \(- 1.33\) to \(11.13\)

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Definitions:

Identical Twins

Siblings born from the same pregnancy who share all of their genes because they were formed from a single zygote that split into two.

Misinterpretations

Incorrect or mistaken understanding or explanation of a statement, action, or event.

Compulsions

Repetitive or ritualistic acts that, in OCD, serve in some way to deal with the obsessions.

Hallucinations

Perceptions in the absence of external stimuli, such as seeing, hearing, feeling, or smelling things that are not there.