Question
The adhesive strength of medical monitoring device has a known standard deviation of 0.55 dyne
cm. Tests on the first five prototypes of a new model yielded the following values of adhesive
strength: 2.96, 5.67, 2.76, 1.26 and 4.21 dyne-cm'.
a. What is the 95% confidence interval for the mean adhesion?
b. If the manufacturer wants the confidence interval to be no wider than 0.62 dyne-cm2, how many
1.
observations should they take?

Image Transcription

The adhesive strength of medical monitoring device has a known standard deviation of 0.55 dyne cm. Tests on the first five prototypes of a new model yielded the following values of adhesive strength: 2.96, 5.67, 2.76, 1.26 and 4.21 dyne-cm'. a. What is the 95% confidence interval for the mean adhesion? b. If the manufacturer wants the confidence interval to be no wider than 0.62 dyne-cm2, how many 1. observations should they take?

Expert Answer

Want to see the step-by-step answer?

See Answer

Check out a sample Q&A here.

Want to see this answer and more?

Step-by-step answers are written by subject experts who are available 24/7. Questions are typically answered in as fast as 30 minutes.*

See Answer
*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.
Tagged in

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: The range for a set of data is estimated to be 56. a. What is the planning value for the population ...

A: a. The planning value for the standard deviation is calculated as:

Q: given that the sample mean=105, pop standard deviation=27, n=44, a=0.01 what is the critical s-score

A: Note: In this question it has mentioned that we have to find the s – score but it seems that it is a...

Q: Use the rank correlation coefficient to test for a correlation between the two variables. Use a sign...

A: In this question we have the ranks of judges, we need to conduct the hypothesis test to identify whe...

Q: - A study was done using a treatment group and a placebo group. The results are shown in the table. ...

A: (a)The provided image does not have the question for subpart (a), since the claim is not known, the ...

Q: A doctor wants to research if there is any difference in birth weights of a mother's first and secon...

A: Given the following data of randomly selected 10 mothers with two children and difference in their b...

Q: In a recent survey it was stated that Americans watch television on average four hours per day. Assu...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: The data 17.7 33.5 26.3 22.9 21.4 e 28.9 24.2 18.3 27.9 21.2 19.2 22.121.6 37.7 37.4 presents the bo...

A: Frequency distribution:Frequency of an interval is the number observations that fall in that interva...

Q: You draw and keep a single coin from a bowl that contains 12 pennies, 9 dimes, and 20 quarters. What...

A: The given information is that the bowl contains the12 pennies, 9 dimes, and 20 quarters.It is known ...

Q: A simple random sample of n=23 professors at a local community college have a mean course evaluation...

A: Solution:Null and alternative hypotheses:Null hypothesis: µ = 4Alternative hypothesis: µ ≠ 4Test sta...