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The probabilities that a computer program has a fault in the input, output and processing stages are 0.06, 0.07 and 0.4 respectively. The probabilities of complete failure caused by faults in each of these stages are 0.3, 0.05 and 0.8 respectively
If a complete failure occurs, calculate the probability that the fault occurred in:
(i) The input stage
(ii) The processing stage.
A study of cardiovascular risk factors compared heavy smokers, light smokers, and nonsmokers. Both men and women were included in the study and gender differences were also to be investigated. One of the variables measured was the heart rate after..
What is the probability that the mean price for a sample of 30 service stations is within $.03 of the population mean (to 4 decimals)?
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
We are interested in comparing the proportions of males and females who think earning a large salary is very important to them. I surveyed 200 of each gender and recorded their answers to the question as yes or no.
Compute and interpret each of the statistics in parts(a) through (f) Mean and Median.
Use a scatter plot to determine the relationship between the x values and the y values.
Real estate agents always say "location, location, location" is the most important thing in buying a house. We want to know if the sales prices of homes in two neighborhoods are similar. A random sample is taken from each neighborhood. The prices ..
To test whether the population standard deviation differ significantly using Chi-Square test.
An advantage of the permutation test over the t test for a difference in means is that - distribution interval or a bootstrap percentile interval
By using 0.05 level of significance, is there any evidence of difference in mean life of bulbs produced by two kinds of machines?Calculate p-value and interpret its meaning.
Calculate the mean, median and mode for both sets and do graph/histogram to chart the results and conclude if indeed one set of year had more the other as far a snowfall.
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