Researchers studied symptom distress and palliative care designation among a sample of 710 hospitalized patients. Controlling fo
r age, they used a t-test to compare average distress from nausea scores in men and women. Lower scores indicated less distress from nausea. They report men had an average score of 1.02 and woman had an average score of 1.79. Which statement is correct? (2pts)
Select Men had significantly less distress from nausea. as your answer
Men had significantly less distress from nausea.
Select Men had half as much distress from nausea as woman but we can not determine if this is a significant difference. as your answer
Men had half as much distress from nausea as woman but we can not determine if this is a significant difference.
Select Men had less distress from nausea on average than women but we can not determine if this is a significant difference. as your answer
Men had less distress from nausea on average than women but we can not determine if this is a significant difference.
Select There is a positive correlation between distress from nausea and gender. as your answer
There is a positive correlation between distress from nausea and gender.
A. Men had less distress from nausea on average than women but we can not determine if this is a significant difference.
Step-by-step explanation:
Working based on the information given, the mean values of each group with with men having an average score of 1.02 and women have an average of 1.79 this reveals that distressing nausea on average is higher in women than in men . However, to test if there is a significant difference would be challenging as the information given isn't enough to make proceed with the test as the standard deviations of the two groups aren't given and no accompanying sample data is given.
Z = (X-Mean)/SD <span>z1 = (165 - 150)/15 = +1 </span> <span>z2 = (135 - 150)/15 = - 1 </span> <span>According to the Empirical Rule 68-95-99.7 </span> <span>Mean +/- 1SD covers 68% of the values </span> <span>100% - 68% = 32% </span> <span>The remaining 32% is equally distributed below z = - 1 and z = +1 </span> <span>32%/2 = 16% </span> <span>Therefore, </span> <span>a) Number of men weighing more than 165 pounds = 16% of 1000 = 160 </span> <span>b) Number of men weighing less than 135 pounds = 16% of 1000 = 160</span>
function notation is the way a function is written. It is meant to be a precise way of giving information about the function without a rather lengthy written explanation.
