(a) A manufacturing engineer is testing a power supply used for machine A. Based on 250...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
(a) A manufacturing engineer is testing a power supply used for machine A. Based on 250 testings, the complete table of observed frequencies are shown in Table Q4. Test the hypothesis whether the output voltage is adequately describes by a normal distribution with mean of 110 V and standard deviation 10 V at a significance level a = 0.05. Table Q4: Observed frequencies for each class interval of power supply. Observed frequencies Class interval X < 90 90 X 100 100 X 110 110 < X < 120 120 < X < 130 X > 130 Total 2 30 85 90 40 3 250 (b) Suppose that when tested on another machine B, the null hypothesis was rejected. List two factors, with explanations, that could lead to the rejection of the null hypothesis. (a) A manufacturing engineer is testing a power supply used for machine A. Based on 250 testings, the complete table of observed frequencies are shown in Table Q4. Test the hypothesis whether the output voltage is adequately describes by a normal distribution with mean of 110 V and standard deviation 10 V at a significance level a = 0.05. Table Q4: Observed frequencies for each class interval of power supply. Observed frequencies Class interval X < 90 90 X 100 100 X 110 110 < X < 120 120 < X < 130 X > 130 Total 2 30 85 90 40 3 250 (b) Suppose that when tested on another machine B, the null hypothesis was rejected. List two factors, with explanations, that could lead to the rejection of the null hypothesis.
Expert Answer:
Related Book For
Posted Date:
Students also viewed these mathematics questions
-
In this problem, we shall outline a form of robust linear regression. Assume throughout the exercise that the data consist of pairs (Yi, xi) for i = 1, . . . , n. Assume also that the xi s are all...
-
In the Seven Kingdoms of Westeros, the staple food is bread, as in all the other nations in the region. Bread is widely traded across national boundaries, as is silver. In all these nations, bread...
-
The American Council of Life Insurance lists the following breakdown of ordinary life insurance policies purchased in the United States during the most recent reporting year. If a random sample of...
-
Is informing the consumer about any toxic substances used in the manufacture of a product sufficient to produce an efficient level of toxic substance use for that product? Why or why not?
-
A loaded elevator with very worn cables has a total mass of 2200 kg, and the cables can withstand a maximum tension of 28,000 N. (a) Draw the free-body force diagram for the elevator. In terms of the...
-
Preparing lessors journal entries for an operating lease and a capital lease. Sun Microsystems manufacturers an engineering workstation for $7,200 and sells it for $12,000. Although the workstation...
-
Benchmarking of eco-efficiency indicators faces a number of practical problems. What are these? Can they be overcome? Why is internal benchmarking more common than external benchmarking?
-
Stavski Plastics Corporation was chartered in the Commonwealth of Massachusetts. The company was authorized to issue 10,000 shares of $100 par value, 6 percent preferred stock and 50,000 shares of...
-
64. Johnson Marine has the following costs and expected sales for the coming year. Johnson is considering a number of different methods to determine the price of its product. Variable Manufacturing...
-
Using the article by Wickham, Lehman, and Fillis (2020), define the three factors that comprise the art product. Using examples published in online news sources, discuss how each of these factors can...
-
The company has a cost of capital that ranges from: Rate Project risk 8% low 10% average 13% high risk The coefficient of variation NPV for the Average risk project is between .8 and 1.2 Create a...
-
What is meant by the term concentration ratio?
-
Which tool is most useful in Pareto analysis, a scatter plot or a histogram?
-
Is fairness pattern stable and application specific?
-
What is a domain model?
-
T/F: Developing conceptual models require both domain knowledge and modeling skills.
-
Cosmic Corporation had the following transactions in June: More Info Jun. 1 Sold merchandise inventory on account to Cody Company, $1,485. Jun. 6 Sold merchandise inventory for cash, $560. Jun. 12...
-
Using a graphing utility, graph y = cot -1 x.
-
Binomial data gathered from more than one population are often presented in a contingency table. For the case of two populations, the table might look like this: where Population 1 is binomial(n1,...
-
Let X1,..., Xn be a random sample from a location family. Show that M - is an ancillary statistic, where M is the sample median.
-
Jones (1999) looked at the distribution of functions of X and Y when X = R cos and Y = R sin, where ~ U{0, 2) and R is a positive random variable. Here are two of the many situations that he...
-
The \(T d S\) equation \(T d S=C_{P} d T-T\left(\frac{\partial V}{\partial T} ight)_{P} d P\) is valid where entropy is a function of (a) \(T\) and \(P\) (b) \(P\) and \(V\) (c) \(T\) and \(V\) (d)...
-
The inversion temperature of hydrogen is (a) \(315 \mathrm{~K}\) (b) \(202 \mathrm{~K}\) (c) \(275 \mathrm{~K}\) (d) \(345 \mathrm{~K}\).
-
The inversion temperature of helium is (a) \(460 \mathrm{~K}\) (b) \(40 \mathrm{~K}\) (c) \(620 \mathrm{~K}\) (d) \(823 \mathrm{~K}\).
Study smarter with the SolutionInn App