Question
upstudy study bank question image url

According to a study, the proportion of individuals in which cover their mouths when sneezing is 0.725 . From a survey of 131 adults, 128 cover their mouths when sneezing. What test statistic is calcuated for this scenario? t-value null test z-score p-value mean test

Ask by Harper Long. in the United States
Mar 14,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The test statistic calculated is a z-score.

Solution

Sign in to Unlock Answers for Free!

A Learning Platform Trusted by Millions of Real Students and Teachers.

star-icon Unlock

Answered by UpStudy AI and reviewed by a Professional Tutor

Bonus Knowledge

To calculate the test statistic for this scenario, you would use a z-score since you are comparing a sample proportion to a known population proportion. The formula for the z-score in this case is: \[ z = \frac{(p̂ - p)}{\sqrt{\frac{p(1-p)}{n}}} \] Where \( p̂ = \frac{128}{131} \approx 0.975 \) is the sample proportion, \( p = 0.725 \) is the population proportion, and \( n = 131 \) is the sample size. Plugging in these values will give you the test statistic. You'll want to double-check your calculations based on this! Make sure to keep an eye on the formula—small mistakes can lead to different results. Also, remember to carry out the calculations step-by-step to avoid common pitfalls, such as miscalculating the sample or population proportions. Happy calculating!

Related Questions

Latest Statistics Questions

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy