What is the probability of the test indicating

Assignment Help Basic Statistics
Reference no: EM131384462

Refer to given Exercise. Suppose that the machine is considered to be out of statistical control if the average diameter of a sample of 36 bearings is less than 34.75 mm or greater than 35.25 mm.

(a) If the true mean diameter of all bearings produced is 35 mm, what is the probability of the test indicating that the machine is out of control?

(b) Suppose that the setting of the machine is accidentally changed such that the mean diameter of all bearings produced is 35.05 mm. What is the probability of the test indicating that the machine is in statistical control?

Exercise
The diameter of bearings is known to have a mean of 35 mm with a standard deviation of 0.5 mm. A random sample of 36 bearings is selected. What is the probability that the average diameter of these selected bearings will be between 34.95 and 35.18 mm?

Reference no: EM131384462

Questions Cloud

What is probability that a trip will take more than an hour : What is the probability that a trip will take more than an hour?- If a limousine has already been gone for 45 minutes, what is the probability that it will return within the next 20 minutes?
What is probability of component lasting at least 1500 hours : Find the mean time to failure.- Find the standard deviation of the time to failure.- What is the probability of the component lasting at least 1500 hours?
What is the expected life of the component : What proportion of these components will fail within 30 days?- What is the expected life of the component?- What is the probability of a component lasting between 40 and 50 days?
What is the probability : A random sample of 36 bearings is selected. What is the probability that the average diameter of these selected bearings will be between 34.95 and 35.18 mm?
What is the probability of the test indicating : If the true mean diameter of all bearings produced is 35 mm, what is the probability of the test indicating that the machine is out of control?
What are chances of seeing what bottling company observed : If the standard deviation of the strength of the vendor's bottles is 8 kg/cm2, with the mean of 310 kg/cm2, what are the chances of seeing what the bottling company observed?
Find probability that switch will last at least 1200 hours : What is the expected life of the switch?- What is the standard deviation of the life of the switch?- Find the probability that the switch will last at least 1200 hours.
What is the minimum number of additional switches : What is the minimum number of additional switches, on a standby basis, needed if it is desirable for the system to operate at least 3000 hours with a probability of 40%?
Find the probability of a beam lasting more than 4000 days : Find the mean life of beams.- What is the standard deviation of the life of beams?- Find the probability of a beam lasting more than 4000 days.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find probability that one is democrat followed by republican

if two voters are randomly selected for a telephone survey, what is the probability that they one is a Democrat followed by a Republican? Round your answer to 4 decimal places.

  Finding estimate and confidence interval for mean

Find out point estimate and 95% confidence interval for mean family dental expenses of all employees of company.

  Give the coefficients and the constants

1. Break the function down by answering the following: a. How many terms are in the equation? b. Give the coefficients and the constants (label them).

  Returns of a particular group of mutual funds

Suppose the returns of a particular group of mutual funds are normally distributed with a mean of 12.4% and a standard deviation of 4.7%. If the manager of particular fund wants his fund to be in the top 5% of funds with the highest return, what ..

  Suppose we obtained data on vein size after application of

suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. the

  If a two-sided null hypothesis is rejected for a single

if a two-sided null hypothesis is rejected for a single mean at a given significance level the corresponding one-sided

  What is the probability that exactly four of the next five

the survival rate during a risky operation for patients with no other rate of survival is 76. what is the probability

  Evaluate project using the npv decision rule

The maximum allowable payback and discounted payback statistic for the project are 2 and 2.5 years, respectively. Use the NPV decision rule to evaluate this project; should it be accepted or rejected?

  Operational definition of independent and dependent variable

Design an experiment to test the hypothesis that single-gender math classes are beneficial to adolescent females. Construct operational definitions of both the independent and dependent variables.

  Botanical researcher wishes to design a survey to estimate

Compute the sample sizes for Exercise 1 when the finite-population correction factor is ignored. What do you conclude about the importance of the finite population correction factor for this population?

  Determining the number of employees

The state office of Australia Post believed that mail throughput at suburban post offices increases with the number of employees. From a random sample of ten major suburban post offices, the following regression equation was estimated: Y = -11.76 ..

  What is the probability that the average distance

A certain amateur golfer hits his tee shot on average a distance of 230 yards with a standard deviation of 52.6 yards. He practices on the driving range, hitting 49 tee shots.

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