In Greenville County there are 8324 deer. Explain why the claims of these studies might be suspect.

Describe why the claims of these studies might be suspect.

56. Only $5 \%$ of men surveyed said that they liked "chick flicks."

Among 8834 cases of heart pacemaker malfunctions, 504 were found to be caused by firmware, which is software programmed into the device (based on data from "Pacemaker and ICD Generator Malfunctions," by Maisel et al. , Journal of the American Medical Association, Vol. 295 , No. 16). If the firmware is tested in three different pacemakers randomly selected from this batch of 8834 and th e enti re batch is accepted if there are no fa ilures, what is the probability that the firmware in the entire batch will be accepted? Is this procedure likely to result in the entire batch being accepted?

Describe why the claims of these studies might be suspect.

58. Most shark attacks occur in ocean water that is 3 feet deep; therefore, it is safer to swim in deep water.

Among 8834 cases of heart pacemaker malfunctions, 504 were found to be caused by firmware, which is software programmed into the device (based on data from “Pacemaker and ICD Generator Malfunctions,” by Maisel, et al., Journal of the American Medical Association, Vol. 295, No. 16). Based on these results, what is the probability that a pacemaker malfunction is caused by firmware? Is a firmware malfunction unusual among pacemaker malfunctions?

Suppose an event to be “unusual” if its probability is less than or equal to 0.05. (This is equivalent to the same criterion commonly used in inferential statistics, but the value of 0.05 is not absolutely rigid, and other values such as 0.01 are sometimes used instead.)

So far in the basketball season you have made 12 free throws out of the 20 free throws you have attempted, for a free-throw shooting percentage of $60 \%$. How many consecutive free-throw shots would you have to make to raise your free-throw shooting percentage to $80 \%$ ?

Very tall basketball players have a reputation of being bad free-throw shooters (even though their shots start closer to the rim!). Is this true? Here is a scatterplot showing the relationship between height (in inches) and free-throw percentage for all WNBA players in a recent season with at least 10 free-throw attempts. Describe the relationship between these two variables.

Identify the independent and dependent variables for each study.

50. People who walk at least 3 miles a day are randomly selected, and their blood triglyceride levels are measured in order to determine if the number of miles that they walk has any influence on these levels.

Describe why the claims of these studies might be suspect.

A survey of a group of people said the thing they dislike most about winter is snow.

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

$$\begin{matrix} \text{ } & \text{McDonald's} & \text{Burger King} & \text{Wendy's} & \text{Taco Bell}\\ \text{Order Accurate} & \text{329} & \text{264} & \text{249} & \text{145}\\ \text{Order Not Accurate} & \text{33} & \text{54} & \text{31} & \text{13}\\ \end{matrix}$$

				If two orders are selected, find the probability that they

are both accurate. Assume that the selections are made without replacement. Are the events independent?

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

$$\begin{matrix} \text{ } & \text{McDonald's} & \text{Burger King} & \text{Wendy's} & \text{Taco Bell}\\ \text{Order Accurate} & \text{329} & \text{264} & \text{249} & \text{145}\\ \text{Order Not Accurate} & \text{33} & \text{54} & \text{31} & \text{13}\\ \end{matrix}$$

				 If two orders are selected, find the probability that they

are both fro m Taco Bell. Assume that the selections are made without replacement. Are the events independent?

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

$$\begin{matrix} \text{ } & \text{McDonald's} & \text{Burger King} & \text{Wendy's} & \text{Taco Bell}\\ \text{Order Accurate} & \text{329} & \text{264} & \text{249} & \text{145}\\ \text{Order Not Accurate} & \text{33} & \text{54} & \text{31} & \text{13}\\ \end{matrix}$$

				 If two orders are selected, find the probability that they

are both from Burger King. Assume that the selections are made with replacement. Are the events independent?

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

$$\begin{matrix} \text{ } & \text{McDonald's} & \text{Burger King} & \text{Wendy's} & \text{Taco Bell}\\ \text{Order Accurate} & \text{329} & \text{264} & \text{249} & \text{145}\\ \text{Order Not Accurate} & \text{33} & \text{54} & \text{31} & \text{13}\\ \end{matrix}$$

			If two orders are selected, find the probability that both

of them are not accurate. Assume that the selections are made without replacement. Are the events independent?

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

$$\begin{matrix} \text{ } & \text{McDonald's} & \text{Burger King} & \text{Wendy's} & \text{Taco Bell}\\ \text{Order Accurate} & \text{329} & \text{264} & \text{249} & \text{145}\\ \text{Order Not Accurate} & \text{33} & \text{54} & \text{31} & \text{13}\\ \end{matrix}$$

				If two orders are selected, find the probability that both

of them are not accurate.Assume that the selections are made with replacement. Are the events independent?