The breaking strength of yarn used in the manufacture of woven carpet material is normally distributed with σ = 2.4 psi. a random sample of 16 specimens of yarn from a production run was measured for breaking strength, and based on the mean of the sample (x bar), a confidence interval was found to be (128.7, 131.3). what is the confidence level, c, of this interval? show work and explaina. 0.95b. 0.99c. 0.90d. 0.97e. it can not be determined with the info provided

answer: a

step-by-step explanation:

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

cosine

step-by-step explanation: