Conduct a hypothesis test to evaluate if these data provide evidence of a difference between the proportions of truck drivers and non-transportation workers (the control group) who get less than 6 hours of sleep per day, i.e. are considered sleep deprived.     The test statistic is: Z =   The P-value is

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Conduct a hypothesis test to evaluate if these data provide evidence of a difference between the proportions of truck drivers and non-transportation workers (the control group) who get less than 6 hours of sleep per day, i.e. are considered sleep deprived.  

 

The test statistic is: Z =

 

The P-value is 

**Table: Sleep Duration Among Transportation Professionals**

This table presents the distribution of sleep duration among different groups, including a control group and various categories of transportation professionals: pilots, truck drivers, train operators, and bus/taxi/limo drivers.

| Sleep Duration                | Control | Pilots | Truck Drivers | Train Operators | Bus/Taxi/Limo Drivers |
|-------------------------------|---------|--------|---------------|-----------------|-----------------------|
| **Less than 6 hours of sleep**  | 35      | 19     | 35            | 29              | 21                    |
| **6 to 8 hours of sleep**       | 193     | 132    | 117           | 119             | 131                   |
| **More than 8 hours**           | 64      | 51     | 51            | 32              | 58                    |
| **Total**                       | 292     | 202    | 203           | 180             | 210                   |

- **Control Group**: Represents a baseline group for comparison, as seen with the highest reporting of 6 to 8 hours of sleep (193 individuals).
- **Transportation Professionals**:
  - **Pilots**: Majority (132) get 6 to 8 hours of sleep, with fewer sleeping less than 6 hours (19) or more than 8 hours (51).
  - **Truck Drivers**: An equal number of individuals report less than 6 hours and more than 8 hours of sleep (51 each), but most get 6 to 8 hours (117).
  - **Train Operators**: Similar to truck drivers, with a majority sleeping 6 to 8 hours (119).
  - **Bus/Taxi/Limo Drivers**: Show a distribution with the majority getting 6 to 8 hours of sleep (131), and the least number getting less than 6 hours (21).

This data provides insight into sleep patterns across different transportation sectors, highlighting variations in sleep duration preferences and potential areas for sleep-related interventions.
Transcribed Image Text:**Table: Sleep Duration Among Transportation Professionals** This table presents the distribution of sleep duration among different groups, including a control group and various categories of transportation professionals: pilots, truck drivers, train operators, and bus/taxi/limo drivers. | Sleep Duration | Control | Pilots | Truck Drivers | Train Operators | Bus/Taxi/Limo Drivers | |-------------------------------|---------|--------|---------------|-----------------|-----------------------| | **Less than 6 hours of sleep** | 35 | 19 | 35 | 29 | 21 | | **6 to 8 hours of sleep** | 193 | 132 | 117 | 119 | 131 | | **More than 8 hours** | 64 | 51 | 51 | 32 | 58 | | **Total** | 292 | 202 | 203 | 180 | 210 | - **Control Group**: Represents a baseline group for comparison, as seen with the highest reporting of 6 to 8 hours of sleep (193 individuals). - **Transportation Professionals**: - **Pilots**: Majority (132) get 6 to 8 hours of sleep, with fewer sleeping less than 6 hours (19) or more than 8 hours (51). - **Truck Drivers**: An equal number of individuals report less than 6 hours and more than 8 hours of sleep (51 each), but most get 6 to 8 hours (117). - **Train Operators**: Similar to truck drivers, with a majority sleeping 6 to 8 hours (119). - **Bus/Taxi/Limo Drivers**: Show a distribution with the majority getting 6 to 8 hours of sleep (131), and the least number getting less than 6 hours (21). This data provides insight into sleep patterns across different transportation sectors, highlighting variations in sleep duration preferences and potential areas for sleep-related interventions.
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