Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

kropot72Best ResponseYou've already chosen the best response.1
(a) The mean is \[205\times 0.15=?\] The standard deviation is \[\sqrt{(205\times 0.15\times 0.85)}\]
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
i got 5.1125 something
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
I need help with last one
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
can you help on last one , cuz I really don't get t
 one year ago

kropot72Best ResponseYou've already chosen the best response.1
(c) This part can be solved by using the Normal Approximation of the Binomial Distribution. As found in part (a) the mean = 31 and the standard deviation = 5.112. There are 27 seats available for left handed people so we need to find the probability that the number of left handed people is equal to, or fewer than 27. In this case the zscore is calculated as follows: \[z=\frac{2731+0.5}{5.112}=0.6847\] Note: The term 0.5 in this calculation is a correction caused by the change from a discrete to a continuous distribution. A standard normal probability table gives a cumulative probability of 0.247
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
i need to use that for last one
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
p hat is equal to = x/n
 one year ago

kropot72Best ResponseYou've already chosen the best response.1
The question you have posted does not involve sampling. Therefore the formula you have posted does not apply.
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.