Question

In: Statistics and Probability

A set of reliability testing data for a special equipment was obtained and the ordered ages...

A set of reliability testing data for a special equipment was obtained and the ordered ages at failure (hours) were: 8.3, 13, 16.9, 20.1, 23.8, 26.5, 29.8, 33.2, 36.5, 41, 45.1, 51.7, 61.3. Assume that these times to failure are normally distributed. Estimate the equipment reliability and hazard function at age 25 hours.

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

How does each of the following influence the reliability of the data: (1) data obtained from...
How does each of the following influence the reliability of the data: (1) data obtained from external versus internal sources, (2) data obtained directly versus indirectly, (3) data from original documents versus electronic scans, and (4) and data from written information sources versus records of verbal conversations?
Recall that the quartiles for sample data are obtained by dividing the number of ordered observations...
Recall that the quartiles for sample data are obtained by dividing the number of ordered observations into two equal parts: a lower half and an upper half. We are given the following data. Urban Area Total Cost (millions of dollars) New York 17 Los Angeles 15 Chicago 9 Washington, D.C. 7 Houston 7 Dallas/Fort Worth 5 Detroit 5 Miami 5 Phoenix 5 Philadelphia 5 San Francisco 4 Boston 4 Atlanta 4 To find the values of the lower quartile and...
Data obtained from the National Center for Health Statisticsshow that men between the ages of...
Data obtained from the National Center for Health Statistics show that men between the ages of 20 and 29 have a mean height of 69.3 inches, with a standard deviation of 2.9 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than 2.9 inches. The heights (in inches) of 20 randomly selected players are given below.7274717276707775727277727570737375737474Use Minitab Express to perform a Normality Test on this data. Report your answers rounded to three...
For the following data set, tabulate and Plot the nonparametric the a) reliability function, b) probability...
For the following data set, tabulate and Plot the nonparametric the a) reliability function, b) probability density function, and c) hazard function. There are 25 systems on test with the following times to failure. 5, 6, 8, 10, 11, 12, 15, 20, 24, 29, 33, 40, 43, 50, 54, 58, 60, 60, 61, 62, 62, 63, 64, 65, 66 What observations would you make based on your analysis?
Data obtained from the National Center for Health Statistics show that men between the ages of...
Data obtained from the National Center for Health Statistics show that men between the ages of 20 and 29 have a mean height of 69.3 inches, with a standard deviation of 2.9 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than 2.9 inches. The heights (in inches) of 20 randomly selected players are given below. 72 74 71 72 76 70 77 75 72 72 77 72 75 70 73 73...
The following set of data was obtained by the method of initial rates for the reaction:...
The following set of data was obtained by the method of initial rates for the reaction: 2NO(g) + O2 (g) ----> 2NO2(g) Experiment # [NO], M [O2], M Initial Rate, M/s 1 0.0126 0.0125 1.41 x 10^-2 2 0.0252 0.0250 1.13 x 10^-1 3 0.0252 0.0125 5.64 x 10^-2 a) What is the rate law for the reaction? b) If you triple the concentration of both reactants, what will happen to the rate? c) What is the value of the...
Find x and y so that the ordered data set has a mean of 42 and...
Find x and y so that the ordered data set has a mean of 42 and a median of 35, hence compute the harmonic mean and geometric mean of the data sample.        17, 22, 26, 29, 34, x, 42, 67, 70, y                                                          The lengths, in centimeters, of 18 snakes are given below. Draw an ordered stem-and-leaf diagram for the data.                                                                                                                                     24, 62, 20, 65, 27, 67, 69, 32, 40, 53, 55, 47, 33,...
Suppose we are testing a data set for normality. The data has a median of 80.25,...
Suppose we are testing a data set for normality. The data has a median of 80.25, a mean of 77.5, and a standard deviation of 2.1. Compute Pearson's Coefficient of Skewness for this data. PC = Suppose that the histogram looks roughly bell-shaped and there are no outliers. Can we say that this data is normally distributed? A. Yes B. No Round your Pearson's Coefficient to at least three decimal places if applicable. A laser printer is advertised to print...
Consider one of the subset regression models for each data set obtained in Problem Set 4...
Consider one of the subset regression models for each data set obtained in Problem Set 4 and answer the following questions. (i) Draw the scatter plot matrix, residual vs. predictor variable plots and added variable plots. Comment on the regression model based on these plots. (ii) Draw the normal-probability plot and comment. (iii) Draw the correlogram and comment. (iv) Detect leverage points from the data. (v) Compute Cook’s distance statistics and detect all outlier points from the data. (vi) Compute...
Consider one of the subset regression models for each data set obtained in Problem Set 4...
Consider one of the subset regression models for each data set obtained in Problem Set 4 and answer the following questions. (i) Draw the scatter plot matrix, residual vs. predictor variable plots and added variable plots. Comment on the regression model based on these plots. (ii) Draw the normal-probability plot and comment. (iii) Draw the correlogram and comment. (iv) Detect leverage points from the data. (v) Compute Cook’s distance statistics and detect all outlier points from the data. (vi) Compute...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT