A Local Group Claims That the Police Issue at Least $$\begin{array} { l l l l l l l l l l } 70 & 48 & 41 & 68 & 69 & 55 & 70 & 57 & 60 & 83 \\32 & 60 & 72 & 58 & & & & & &\end{array}$$

question 5

Essay

A local group claims that the police issue at least 60 parking tickets a day in their area. To prove their point,they randomly select two weeks. Their research yields the number of tickets issued for each day. The data arelisted below. At α = 0.01, test the groupʹs claim. Round the test statistic to the nearest thousandth. $$\begin{array} { l l l l l l l l l l } 70 & 48 & 41 & 68 & 69 & 55 & 70 & 57 & 60 & 83 \\32 & 60 & 72 & 58 & & & & & &\end{array}$$

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Definitions:

Random Assignment

A method used in experiments to assign participants or items to different groups in a way that each has an equal chance of being in any group.

Placebo

A substance with no therapeutic effect, used as a control in testing new drugs, or to influence a participant's belief in the efficacy of a treatment.

Acupuncture Treatments

Involves the insertion of thin needles through the skin at strategic points on the body, used primarily for pain relief and therapeutic purposes in traditional Chinese medicine.

Double Blind

A study or experiment design in which neither the participants nor the experimenters know which participants are receiving the test treatment versus the control, to prevent bias.