Prediction interval for the tensile strength

Assignment Help Basic Statistics
Reference no: EM131015211

Atlas Fishing line produces 10-lb test line. Twelve randomly selected spools are subjected to tensile-strength tests, and the results are given below.

9.8 10.2 9.8 9.4 9.7 9.7 10.1 10.1 9.8 9.6 9.1 9.7

(a) Is it misleading to advertise this as "IO-lb test line"? Explain what your results mean.

(b) Construct a 95% prediction interval for the tensile strength of the next randomly selected spool.

(c) Construct an interval that with 90% confidence will include the tensile strength of 95% of the spools.

(d) How large a second sample would be needed in order to construct a 99% confidence interval with length no more than 0.5?

Reference no: EM131015211

Questions Cloud

Explanation of ethical behavior in the workplace : This question involves an explanation of ethical behavior in the workplace. Explain what it means to demonstrate positive ethical behavior in the workplace. Include examples to support your explanation.
What conclusions would you make concerning inventory trend : Income statements for Eldermon Sales Company follow. Analyze the inventory position at the end of each year as well as the profitability of inventory sales in each year. What conclusions would you make concerning the inventory trend?
Sketch the secant line between these two points : On the axes below, draw a non-linear function that is continuous and differentiable between the points (0, 3) and (4, 1). Sketch the secant line between these two points.
Explain three examples each of highrisk and lowrisk decision : Explain the concept of fundamental attribution error. If you were to encountering a coworker who rarely smiles or returns your greeting when you pass her in the hall, how might this perceptual bias influence you opinion of that person..
Prediction interval for the tensile strength : (a) Is it misleading to advertise this as "IO-lb test line"? Explain what your results mean. (b) Construct a 95% prediction interval for the tensile strength of the next randomly selected spool. (c) Construct an interval that with 90% confid..
Comparing with a critical value : Test the appropriate hypothesis by comparing with a critical value using o: = 0.05, and explain what your results mean. Compute the p-value for the test in part (a) and use it to perform the hypothesis test.
Random variable having a normal distribution : Suppose a certain oil producing country exports (1 + X) million barrels of oil per day, where X is a random variable having a normal distribution with mean zero and variance 1/25.
Discuss the role the management accountant : Evaluate the business environment and the strategies of Air New Zealand - Prepare a report to the CEO - discuss the strategic and operational management accounting information needs of Air New Zealand.
Seconds with a standard deviation : A random sample of 38 runs with the new model results in an average time of 33 seconds with a standard deviation of 5 seconds. Perform the desired hypothesis test by computing a p-value.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd