In the Northern Hemisphere, dolphins swim predominantly in a counterclockwise direction. Researchers tested whether dolphins in...

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In the Northern Hemisphere, dolphins swim predominantly in a counterclockwise direction. Researchers tested whether dolphins in the Southern Hemisphere also exhibited the same behavior. They observed dolphins and recorded the percentage of movements that were clockwise or counter-clockwise. Surprisingly, the dolphins in the Southero Hemisphere in the study exhibited mostly counter-clockwise movements. Researchers hypothesized that the result may be from differences in the Earth's magnetic field in the Northern and Southern Hemispheres, or from differences in predominant directions of ocean currents (Coriolis effect). Examine this data for the following questions, Dataset: dolphin Vanable: dolphinSpercentClockwise percentClockwise 1. 77.7 84.8 79.4 84.0 99.6 93.6 89.4 97.2 > dolphinSpercentClockwise (1] 77.784.879.4 84.0 99.6 93,6 89.4 97.2 Confidence Intervals. Studies on Northern Hemisphere dolphins found they exhibited mostly clockwise swimming, with a mean of 94% of their behaviors in the clockwise direction. As a researcher, you hypothesize that this may be the true population mean for percentage rotational swimming in dolphins (either clockwise or counter-clockwise). Examine the Southern Hemisphere dolphin data to see if the Southern Hemisphere dolphins match this hypothesized true mean, using a one sample t-test. 2) What is the p-value of this one-sample t-test? What is the t-score and degrees of freedom? P value=0.05 3) Do you reject or fail to reject the null-hypothesis? Is the Southern Hemisphere dolphin data consistent with a true population mean of 94% for rotational swimming behavior? In the Northern Hemisphere, dolphins swim predominantly in a counterclockwise direction. Researchers tested whether dolphins in the Southern Hemisphere also exhibited the same behavior. They observed dolphins and recorded the percentage of movements that were clockwise or counter-clockwise. Surprisingly, the dolphins in the Southero Hemisphere in the study exhibited mostly counter-clockwise movements. Researchers hypothesized that the result may be from differences in the Earth's magnetic field in the Northern and Southern Hemispheres, or from differences in predominant directions of ocean currents (Coriolis effect). Examine this data for the following questions, Dataset: dolphin Vanable: dolphinSpercentClockwise percentClockwise 1. 77.7 84.8 79.4 84.0 99.6 93.6 89.4 97.2 > dolphinSpercentClockwise (1] 77.784.879.4 84.0 99.6 93,6 89.4 97.2 Confidence Intervals. Studies on Northern Hemisphere dolphins found they exhibited mostly clockwise swimming, with a mean of 94% of their behaviors in the clockwise direction. As a researcher, you hypothesize that this may be the true population mean for percentage rotational swimming in dolphins (either clockwise or counter-clockwise). Examine the Southern Hemisphere dolphin data to see if the Southern Hemisphere dolphins match this hypothesized true mean, using a one sample t-test. 2) What is the p-value of this one-sample t-test? What is the t-score and degrees of freedom? P value=0.05 3) Do you reject or fail to reject the null-hypothesis? Is the Southern Hemisphere dolphin data consistent with a true population mean of 94% for rotational swimming behavior?

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Let us assume the percent clock wise data are independent and come from a Normal distribution Let us ... View the full answer