ZuoTi.Pro
Question

2. Based on a sample of 40 rackets of a particular type, a 90% confidence interval for the mean resonance frequency of tennis

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

The 90% confidence interval for the mean resonance frequency of tennis rackets of the type , in Hertz is ( 114.4 Hz , 115.6 Hz )

The correct interpretation of the interval is ,

a. There is a 90% chance that the mean resonance frequency of the rackets is between 114.4 Hz and 115.6 Hz.

Because the confidence interval gives the plausible values for the population parameter.

0 0
Add a comment
Know the answer?
Add Answer to:
2. Based on a sample of 40 rackets of a particular type, a 90% confidence interval...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Each of the following is a confidence interval for μ = true average (i.e., population mean)...

    Each of the following is a confidence interval for μ = true average (i.e., population mean) resonance frequency (Hz) for all tennis rackets of a certain type: I will rate the answer, thank you! 6. -110 points DevoreStat9 7.E.002. My Notes Ask Your Teacher Each of the following is a confidence interval for μ = true average (ie, population mean) resonance frequency (Hz) for all tennis rackets of a certain type: (113.6, 114.4) (113.4, 114.6) (a) What is the value...

  • Each of the following is a confidence interval for u = true average (i.e., population mean)...

    Each of the following is a confidence interval for u = true average (i.e., population mean) resonance frequency (Hz) for all tennis rackets of a certain type: (117.6, 118.4) (117.4, 118.6) (a) What is the value of the sample mean resonance frequency? Hz (b) Both intervals were calculated from the same sample data. The confidence level for one of these intervals is 90% and for the other is 99%. Which of the intervals has the 90% confidence level, and why?...

  • What proportion of college students plan to major in Business? A 90% confidence interval is constructed...

    What proportion of college students plan to major in Business? A 90% confidence interval is constructed based on data collected from 250 college students, and the interval is found to be from 0.18 to 0.27. Which of the following statements is a correct interpretation of this confidence interval? A We are confident that 90% of all students in the population plan to major in Business. B We are 90% confident the proportion of students in our sample who plan to...

  • A student was asked to find a 90% confidence interval for the proportion of students who...

    A student was asked to find a 90% confidence interval for the proportion of students who take notes using data from a random sample of size n = 86. Which of the following is a correct interpretation of the interval 0.13 < p < 0.23? Check all that are correct. __With 90% confidence, the proportion of all students who take notes is between 0.13 and 0.23. __There is a 90% chance that the proportion of the population is between 0.13...

  • An investigator obtained a confidence interval based on a particular sample. When asked to explain what...

    An investigator obtained a confidence interval based on a particular sample. When asked to explain what her confidence interval means, she says: “It means we can be 95% certain that the true mean WISC IQ scores for my population of 5th graders falls somewhere in this interval.” Based on everything you’ve learned about confidence intervals, evaluate her statement.

  • A 90% confidence interval for a mean if the sample has n=40 with x=22.9 and s=5.9...

    A 90% confidence interval for a mean if the sample has n=40 with x=22.9 and s=5.9 , and the standard error is 0.93 .

  • 2) (3 points) A news report states that the 90% confidence interval for the mean number...

    2) (3 points) A news report states that the 90% confidence interval for the mean number of daily calories consumed by participants in a medical study is (2020, 2160). Assume the population distribution for daily calories consumed is normally distributed and that the confidence interval was based on a simple random sample of 20 observations. Calculate the sample mean, the margin of error, and the sample standard deviation based on the stated confidence interval and the given sample size. Use...

  • data collected by child development scientists produced the following 90% confidence interval for the average age...

    data collected by child development scientists produced the following 90% confidence interval for the average age (in months) at which children say their first word: 10.4 < u < 13.8. in this example, what does the phrase 90% confident mean? a) there is a 90% chance that the sample mean is between 10.4 and 13.8 months. b) if many samples are drawn, the computed confidence intervals will contain the population mean approximately 90% of the time. c) there is 90%...

  • Itl 5 LTE Confidence Interval for the P... DOCX -16 KB Close Confidence Interval for the Populati...

    statistics itl 5 LTE Confidence Interval for the P... DOCX -16 KB Close Confidence Interval for the Population Mean l. Determine the critical values for 80%, 90%, 95%, and 99%; 2. Construct 80%, 90%, 95%, and 99% confidence interval for the population mean given that the standard deviation of the population is 900 and the sample mean is 425 and the sample consist of 100 points of data 3. Find the T interval for the following: Construct 80% 90%. 95%,...

  • Assume we have taken an SRS of 49 UCLA students and calculated a 95% confidence interval...

    Assume we have taken an SRS of 49 UCLA students and calculated a 95% confidence interval for the mean age to be 23 < µ< 27 years.   Determine which of the following interpretations are True. Then answer parts i and ii in the space below. A.  A 95% confidence interval for the mean age of students at UCLA is 23 to 27. This means that 95% of all students are in this interval. B. A 95% confidence interval for the mean...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT