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The life corn delight popcorn maker is normally distributed with them mean of 20 months and a standard deviation of two months. The manufacturer will replace on the life popper if it breaks during the guarantee period. How long should the guarantee period be in the manufacture does no one to replace more than 3% of the poppers.
What is the probability of randomly selecting a student with a treadmill time greater than 25 minutes? In symbols, p(X>25)= ? What is the probability of randomly selecting a student with a time greater than 30 minutes? In symbols, p(x>30) ?
What is the probability that a simple random sample of 40 male graduates will provide a sample mean within $10,000 of the population mean, $168,000 (to 4 decimals)?
To test whether there is a significant mean difference among the three.
Determine percent of the garages take between 29 hours and 34 hours to erect? Determine percent of garages take 28.7 hours or less to erect?
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? State the null hypothesis and the alternate hypothesis.
What does central limit theorem say about distribution of John's average payoff after 365 bets in a year?
The cheetahs' coach believes that the Rockets' times are normally distributed as well. Construct a 95% confidence interval the Coach to compare the two teams' sprint units.
Create a scenario where the binomial probability formula could be used to determine the probability of some number of successes, x, in some given number of trials,n.
Now assume institutional cache is used. Hit rate for cache is 0.6. Determine the total average response time.
Set up the null and alternative hypotheses, and perform the hypothesis test with a significance level of 0.05.
Mention your decision regarding the null hypothesis. If H 0 rejected can we conclude that treatment 2 and treatment 3 differ? Use 95 percent level of confidence.
Find or create a data set that would allow you to explain what is meant by mean, median and mode. Make sure to also show any calculations or formula necessary. Describe or provide as much information on the data set as possible.
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