Formulate and test appropriate set of hypotheses

Assignment Help Basic Statistics
Reference no: EM13114517

A manufacturer of intraocular lenses is qualifying a new grinding machine and will qualify the machine if there is evidence that percentage of polished lenses that contain sur¬face defects does not exceed 2%. A random sample of 240 lenses contains 5 defective lenses.

(a) Formulate and test an appropriate set of hypotheses to determine if the machine can be qualified. Use a = 0.05. Find the P-value.

(b) Explain how the question in part (a) could be answered with confidence interval.

Reference no: EM13114517

Questions Cloud

Find the process of angiosperm fertilization : How is "pollination" different than "fertilization"? Explain and draw the structures and the process of angiosperm fertilization. What is double fertilization and why is it necessary.
How many grams of ammonia could be produced : If equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield.
Computing probability with replacement : An urn contains 7 blue and 3 yellow chips. If the drawing of chips is done with replacement, determine the probability of: Drawing three yellow chips.
Explain how much cash does a company have : Explain How much cash does a company have if the firm has a current ratio of 2.5, a quick ratio of 1.2, and current liabilities of $12,000?
Formulate and test appropriate set of hypotheses : Formulate and test an appropriate set of hypotheses to determine if the machine can be qualified. Use a = 0.05. Find the P-value.
Assets liabilities and equity : WACC The Patrick Company's year-end balance sheet is shown below. Its cost of common equity is 16%, its before-tax cost of debt is 13%, and its marginal tax rate is 40%.
Describe how the mcdonalds prices its revenues and costs : Describe how the McDonalds prices its revenues and costs. For MNE's with multiple foreign operations, consider any two of those operations and the contribution they are making to the parent firm's profits.
Application of mathematics and computer programming : Financial Engineering is the application of mathematics and computer programming skills to solve certain problems in finance drawing on tools of statistics, economics, computer science and applied mathematics.
What is the thickness of the gold leaf in cm : Pure gold can be made into extremely thin sheets called gold leaf. Suppose that 5.0 x 102 kg of gold is made into gold leaf having an area of 3620 m2.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Estimating sample size-population mean

What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?

  Evaluate the average earnings

If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately.

  Formulating hypothesis and classifying type of error

Formulate the appropriate null and alternative hypotheses to test the manufacturer's belief. Using the sample mean of 99.2, compute a 90% confidence interval. Show the computation, and interpret in one sentence the interval you compute.

  Draw the distribution of the random variable

Draw the distribution of the random variable X, representing her time of arrival. (Be sure to include labels and values on the axes.)

  Probabilities for discrete random variables

How would I go about finding the probabilities for the following discrete random variables? Among a shipment of 5,000 tires, 1,000 are slightly blemished. If one purchases 10 of these tires, what is the probability that 3 or less (P (x

  Two-tailed test for point effect

If the population standard deviation is σ = 20 is the 6 point effect large enough to be statistically significant? Use the two - tailed test with α = .05

  Iq scores and normal distribution

A person must score in the upper 2% of the population on an IQ test to qualify for member ship in Mensa, the international high-IQ society. If IQ scores are normally distributes with a mean of 100 and a standard deviation of 15, what score must a ..

  Effect of a level for one factor depends on which level

When the effect of a level for one factor depends on which level of the other factor is present, use: Select one:

  P-value method for families having higher income

The average income of 11 families who reside in a rural area of the Midwest is $60,213, with a standard deviation of $2009. At α =0.05, can it be concluded that the families who live in the cities have a higher income than those who live in the ru..

  Bayes theorem to find the probability

If HIV virus is actually present, the probability that ELIA test will give a positive result from ELISA is .01. If ELISA has given a positive result, use the Bayes' theorem to find the probability that the HIV virus is actually present.

  Using level of significance-mean weight

Using a level of significance of .10, is there evidence that the population mean weight of the candy bars is greater than 7.3? Explain.

  Commute time of teachers in a large urban area

Let x be a random variable that represents the commute time of teachers in a large urban area. If x is normally distributed with a mean of 46 minutes and a standard deviation of 5 minutes, find the commute time which is at the top of the bottom 25..

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