ashontae19
  • ashontae19
ANYONE UP FOR A CHALLENGE WILL GIVE A MEDAL
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Valpey
  • Valpey
The probabilities will be the number of observations with a quality divided by the number of observations. So, for a), how many women with breast cancer tested positive? How many women had breast cancer?
anonymous
  • anonymous
3a would be 7/8 in percent form and 3b would be 70/992 in percent form. 3a= 87.5% 3b= 7%
Valpey
  • Valpey
Of course, these are our estimates for those probabilities because we only have a sample of 1000 people; not the entire population of women (probably within some age range).

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Valpey
  • Valpey
4.) is an important question as well. Clearly we can see that a woman is much more likely to test positive for breast cancer if she has it than if she doesn't, but we can also describe this numerically. To test for independence we assert a null hypothesis: H0: All people test positive at the same rate regardless of their actual cancer status The probability of observing at least 7 out of 8 people with breast cancer test positive when the population mean is 7% would be: 8*(0.07)^7*(0.93) + (0.07)^8 = 0.0000000618 This is far below any threshold we would reasonably imagine someone might still entertain the null hypothesis so we can safely reject it. Can you see where I produced this expression above?
ashontae19
  • ashontae19
yes
ashontae19
  • ashontae19
so that would be for 4
ashontae19
  • ashontae19
@zebra8806
Valpey
  • Valpey
Yeah. Next, how many people out of the 1000 tested positive?
ashontae19
  • ashontae19
thank you i got my help

Looking for something else?

Not the answer you are looking for? Search for more explanations.