Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. in 2018, as a way of commemorating the 10-year ann

In 2018, as a way of commemorating the 10-year anniversary of the release of the first...

70.2K

Verified Solution

Question

Statistics

In 2018, as a way of commemorating the 10-year anniversary ofthe release of the first smartphone, an undergraduate studentpolled a random sample of 26 her peers in hopes of estimating theaverage time (in hours) such students spend on their smartphoneeach day, on average. Using the data she collected, she produced a95% confidence interval for the true mean time college studentsspend on their phone each day: (5.035, 6.165)

1. What was the margin of error of this confidence interval?

2. What was the sample mean time (in hours) for the n = 26students?

3. What was the sample standard deviation (in hours) for the n =26 students? Submit your answer rounded to four decimals.

Show work please and thank you.

Answer & Explanation Solved by verified expert
3.9 Ratings (699 Votes)
1Formula for Confidence Interval for Population mean whenpopulation Standard deviation is not knownMargin of errorieConfidence Interval for Population    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Finance
1.2K views

Amount financed = 240,000 - 91,088 = $148,912. This is Pv. Nper = 15 years*12 =...

Chemistry
1.2K views

In a 100.0 mL sample of a different buffer solution, the propanoic acid solution is 0.350...

Physics
1.2K views

The maximum speed of a child on a swing is 5.90 m/s. The child’s height above...

Electrical Engineering
1.2K views

Question 5 a) Draw the circuit of a Three-phase bridge inverter using a Y-connected load and explain...

Biology
1.2K views

4 How many balls does it take to 5 How many innings do MLB players...

Basic Math
1.2K views

Use a calculator to find the following values:sin(0.3)cos(0.3)tan(0.3)

Accounting
1.2K views

Golden Corp., a merchandiser, recently completed its 2018 operations. For the year, (1) all sales...

Accounting
1.2K views

Cedar Fair, L.P. (Limited Partnership), is one of the largest regional amusement park operators in...

Accounting
1.2K views

Klumper Corporation is a diversified manufacturer of industrial goods. The company's activity-based costing system contains...

Accounting
1.2K views

QUESTIONS: You are required to provide your own case study of a system development. Your...

Accounting
1.2K views

Problem 10-58 (LO 10-2, LO 10-3) (Static) [The following information applies to the questions displayed...

Finance
1.2K views

Mecca Ltd. an industrial product factory has been operating for several years and closed its...