Login

Contact Us
Calculus and Above
Calculus Questions? Ask a Mathematician for Answers ASAP
Not a Calculus and Above Question?
How JustAnswer Works:
Ask an Expert
Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
Get a Professional Answer
Via email, text message, or notification as you wait on our site.
Ask follow up questions if you need to.
100% Satisfaction Guarantee
Rate the answer you receive.
Ask Ashok Kumar Your Own Question
Ashok Kumar
,
Electrical Engineer
Category:
Calculus and Above
Satisfied Customers:
3108
Experience:
Masters Degree in Electrical Engineering
46493125
Type Your Calculus and Above Question Here...
Ashok Kumar is online now
In a survey of 616 males ages 1864, 392 say they have
Customer Question
In a survey of
616
males ages 1864,
392
say they have gone to the dentist in the past year.
Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals.
Submitted:
1 year ago.
Category:
Calculus and Above
Share this conversation
Expert:
Ashok Kumar
replied 1 year ago.
Thanks for using Justanswer.com. I will solve these questions.
Kindly inform when this is due.
Ask Your Own Calculus and Above Question
Customer:
replied 1 year ago.
2 hrs
Expert:
Ashok Kumar
replied 1 year ago.
Here p = 392/616 = 0.6363
standard deviation = sqrt[p(1p)/n]
= sqrt(0.6363*0.3636/616)
= 0.01938
Confidence interval: p±z*standard deviation
For 90% confidence interval, z = 1.645
Hence, 90% confidence interval: (0.6363±1.645*0.01938)
: (0.6044, 0.6682)
For 95% confidence interval, z = 1.96
Hence, 95% confidence interval: (0.6363±1.96*0.01938)
: (0.5983, 0.6743)
90% confidence interval means that 90 times out of 100, the probability will be between 0.6044 and 0.6682. Similarly 95% confidence means.
95% confidence interval is wider.
Kindly rate the answers.
Ask Your Own Calculus and Above Question
Expert:
Ashok Kumar
replied 1 year ago.
Kindly rate the answers if no clarification is needed.
Ask Your Own Calculus and Above Question
Share this conversation
Related Calculus and Above Questions
Question
Date Submitted
Mr.Glenn are you online? I have more statistics questions
2/27/2017
2/27/2017
Mr. Glenn
Attached
2/26/2017
2/26/2017
Ryan
The total cholesterol levels of a sample of men aged 3544
2/25/2017
2/25/2017
Aleksander Zujev
Matlab Matrices project. Matrix multiplication and matrix
2/23/2017
2/26/2017
Ryan
Directions: Use the following information to complete the
2/21/2017
2/22/2017
Aleksander Zujev
I have 24 questions on this final statistics assignment but,
2/21/2017
2/21/2017
Mr. Glenn
In a survey of 632 males ages 1864, 397 say they have gone
2/19/2017
2/19/2017
Ryan
I want to calculate the weighted median in excel
2/16/2017
2/16/2017
Mr. Glenn
Attached
2/11/2017
2/12/2017
Ryan
Use the definition of the derivative to find f' (x) of f (x)
2/2/2017
2/2/2017
Ryan
X
Ask a Tutor
Get a Professional Answer. 100% Satisfaction Guaranteed.
46 Tutors are Online Now
Type Your Calculus and Above Question Here...
characters left: