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A two stroke four cylinder ideal otto engine operates at 4800rpm. Air is taken in at 101 kpa and 20 Centigrade. The volume in each cylinder is 500 cm^3 before compression and 90 cm^3 after compression. If 2500 j/g of air heat is added.
Determine (a) Compression Ratio. (b) p,V and T at four corners (c) Entropy change during heat addition (d) Work cycle (e) Heat rejection (f) Power of engine (g) sketch p-V and T-s diagram?
Assume a random sample of 50 architects and engineers is selected. How likely is it that the random sample contain five or fewer women in these positions.
Briefly remind us of the two variables in your correlation and the operational definition of each. State the null hypothesis and the alternative hypothesis (be sure to clearly label each one) for your correlation.
According to the Sleep Foundation, the average night's sleep is 6.8 hours. Assume the standard deviation is 0.6 hours and the probability distribution is normal. a. What is the probability that a randomly selected person sleeps more than 8 hours?
What different types of variables are used in quantitative studies? Describe each type of variable and how they differ.
A person's body temperature is found to be 101.00 °F. Is the result unusual? Why or why not? What should you conclude? What body temperature is the 95th percentile?
You are trying to set up a portfolio that consists of a corporate bond fund and a common stock fund. the following information about the annual return (per $1,000)of each of these investments under different economic condition is available
Credit card holders follows a normal distribution with unknown mean and known standard deviation of $90. what is the 99% confidence interval for the mean?
please provide a 250-300 word explanation for the below discussion question and please include apa style in-text
Use the 5% level of significance. (a) Define null and alternate hypotheses. (b) Determine the value of sample test statistic? (c) Determine(or estimate) P-value.
There are many nonparametric tests that have been developed over the years. Explain what nonparametric tests are and why they were developed.
You have to determine that your cutoff value at level a = 0.05 is 1.645 when testing whether the mean of a population is significantly different from 1.5. If you calculate a test statistic of 1.8 what is the proper conclusion?
suppose you fit the first order multiple regression model y b0 b1x1 b2x2 eto n 25 data points and obtain the
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