In a sample of 20 bolts, the average breaking torque was 89.7 J with a standard deviation

Question:

In a sample of 20 bolts, the average breaking torque was 89.7 J with a standard deviation of 8.2 J. Assume that the breaking torques are normally distributed.

a. Find a 99% prediction interval for the breaking torque of a single bolt.

b. Find a tolerance interval for the breaking torque that includes 95% of the bolts with 99% confidence.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Statistics For Engineers And Scientists

ISBN: 9780073401331

4th Edition

Authors: William Navidi

See More Books

Question Posted: Nov 02, 2018 08:01 AM

See More Questions

A sample of 20 bivariate data has a linear correlation coefficient of r = 0.43 Does this provide sufficient evidence to reject the null hypothesis that p = 0 in favor of a two-sided alternative? Use...
A special cable has a breaking strength of 800 pounds. The standard deviation of the population is 12 pounds. A researcher selects a sample of 20 cables and finds that the average breaking strength...
In a sample of 100 steel wires the average breaking strength is 50 kN, with a standard deviation of 2 kN. a. Find a 95% confidence interval for the mean breaking strength of this type of wire. b....
When Steve Jobs first demonstrated "the pinch"-the two-finger gesture to zoom in and out on photos and Web pages on the iPhone, it just rocked the mobile phone industry-the whole digital world heard...
Explain the difference between SQC and SPC.
Use your intuition to determine whether the variation between the indicated quantities is direct or inverse. The amount of fertilizer needed to fertilize a lawn and the area of the lawn.
As shown in Fig. P5.22, at the entrance to a 3 -ft-wide channel the velocity distribution is uniform with a velocity $V$. Further downstream the velocity profile is given by $u=4 y-2 y^{2}$,...
Presented below and on the next page are the financial statements of Cheaney Company. Additional data: 1. Dividends declared and paid were $25,000. 2. During the year equipment was sold for $8,500...
Acme Corp. just paid a dividend of $3.00 per share (ie., D 0 = $3.00). The dividend is expected to grow at a constant rate of 4% per year. What is the expected dividend at the end of year three (D 3...
The figure below shows a series of standard additions of Cu 2+ to acidified tap water measured by anodic stripping voltammetry at an iridium electrode. The unknown and all standard additions were...
The article ??Effect of Refrigeration on the Potassium Bitartrate Stability and Composition of ItalianWines?? (A. Versari, D. Barbanti, et al., Italian Journal of Food Science, 2002:45??52) reports a...
Five specimens of untreated wastewater produced at a gas field had an average benzene concentration of 6.83 mg/L with a standard deviation of 1.72 mg/L. Seven specimens of treated waste water had an...
Kenwood Homes, Inc., allows employees to purchase, at cost, manufacturing materials, such as metal and lumber, for personal use. To purchase materials for personal use, an employee must complete a...
Zane Corporation was a mediumsized company with multiple product lines. More than 20 years ago, Zane implemented project management to be used in all their product lines, but mainly for operational...
Develop a hypothesis about the use of culture in creating a customer-brand relationship. How does the firm's product and communication strategy support the brand in the global market and why....
Determine what changed objectives or newly implemented interventions are required to improve apple position within its market.
Sitting in his office, Mark Ellinas frowned at his computer screen. It was filled with row after row of electric bikes, from expensive models to cheap knockoffs that seemed held together by spit and...
Importance of a Concept. A widely held assumptionin anthropology, linguistics, and communication is that the importance of a concept to a culture can be measured by the number of words the language...
Table 5.3 lists the allowed combinations of strangeness S and isospin I for mesons composed of light quarks u, d, s in the simple quark model. What are the allowed combinations for tetraquarks...
After graduating from college and working a few years at a small technology firm. Preet scored a high-level job in the logistics department at Amex Corporation. Amex sells high-quality electronic...
The lens equation says that if an object is placed at a distance p from a lens, and an image is formed at a distance q from the lens, then the focal length f satisfies the equation 1/ f = 1/p +1/q....
The Beer-Lambert law relates the absorbance A of a solution to the concentration C of a species in solution by A = MLC, where L is the path length and M is the molar absorption coefficient. Assume...
Assume that X, Y, and Z are independent measurements with X = 25 1, Y = 5.0 0.3, and Z = 3.5 0.2. Find the uncertainties in each of the following quantities: a. X + Y Z b. X/(Y Z) c. XY + eZ d. X...
A scuba diver is exploring a shipwreck at a depth of 30 meters in the ocean. The diver's tank contains 5.0 moles of compressed air at a temperature of 25C. What is the pressure of the air in the tank...
1. Determine the atmospheric pressure at a location where the barometric reading is 720 mm Hg. 2. A pressure gauge connected to a tank reads 52 psi at a location where the barometric reading is 29.6...
Assume that a bond has an annual coupon rate of 6.80 percent, but makes coupon payments on a semi-annual basis, has a par value of $1,000, a yield to maturity of 7.20 percent, and a current price of...

In a sample of 20 bolts, the average breaking torque was 89.7 J with a standard deviation

Question:

Step by Step Answer:

a X 897 s 82 n 20 t 201005 2861 The p...View the full answer

Statistics For Engineers And Scientists

Students also viewed these Mathematics questions