A random sample of heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0, 1.3, 6.0, 1.9, 5.1, .4, 1.0, 5.3, 15.7, .7, 4.8, .9, 12.2, 5.3, .6 a. Assume that the li...
A random sample of heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0, 1.3, 6.0, 1.9, 5.1, .4, 1.0, 5.3, 15.7, .7, 4.8, .9, 12.2, 5.3, .6
a. Assume that the lifetime distribution is exponential and use an argument parallel to that of Example 7.5 to obtain a 95% CI for expected (true average) lifetime.
b. How should the interval of part (a) be altered to achieve a confidence level of 99%? c. What is a 95% CI for the standard deviation of the lifetime distribution? [Hint: What is the standard deviation of an exponential random variable?]
How would you go about solving this using a TI-84 Calculator because that's how my teacher wants it done since we are not relying on Z tables.
Homework Answers
Due to insufficieint time , i will not answer question (b) .
please send the separate question , i will answer it .
Thank you
Add Answer to:
A random sample of heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0, 1.3, 6.0, 1.9, 5.1, .4, 1.0, 5.3, 15.7, .7, 4.8, .9, 12.2, 5.3, .6 a. Assume that the li...
A random sample of n-15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0 1.5 6.0 1.9 5.4 0.4 1.0 5.3 15.6 0.9 4.8 0.9 12.3 5.3 0.6 (a) Assume that the lifet...
A random sample of n-15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0 1.5 6.0 1.9 5.4 0.4 1.0 5.3 15.6 0.9 4.8 0.9 12.3 5.3 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for expected (true average) lifetime. (Round your answers to two decimal places.) ) years (b) How should the interval of part (a) be...
A random sample of n = 15 heat pumps of a certain type yielded the following...
A random sample of n = 15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0 1.5 6.0 1.7 5.3 0.4 1.0 5.3 15.8 0.5 4.8 0.9 12.1 5.3 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for expected (true average) lifetime. (Round your answers to two decimal places.) ( , ) years c) What is a 95%...
confidence interval
A random sample of n = 15 heat pumps of a certain type yielded the following observations on lifetime (in years):2.0 1.1 6.0 1.7 5.3 0.4 1.0 5.315.7 0.9 4.8 0.9 12.2 5.3 0.6(a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for expected (true average) lifetime.(Round your answers to two decimal places.)(b) How should the interval of part (a) be altered to achieve a confidence...
2. ㅢ5 points DevoreStat97 E.010 My Notes Ask Your Teacher + A random sample of n-15...
2. ㅢ5 points DevoreStat97 E.010 My Notes Ask Your Teacher + A random sample of n-15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0 1.4 6.0 1.6 5.3 0.4 1.0 5.3 15.8 0.7 4.80.9 12.2 5.3 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for expected (true average) lifetime. (Round your answers to two decimal places.) years...
A random sample of n-15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0 1.5 6.0 1.9 5.4 0.4 1.0 5.3 15.6 0.9 4.8 0.9 12.3 5.3 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for expected (true average) lifetime. (Round your answers to two decimal places.) ) years (b) How should the interval of part (a) be...
2. ㅢ5 points DevoreStat97 E.010 My Notes Ask Your Teacher + A random sample of n-15 heat pumps of a certain type yielded the following observations on lifetime (in years): 2.0 1.4 6.0 1.6 5.3 0.4 1.0 5.3 15.8 0.7 4.80.9 12.2 5.3 0.6 (a) Assume that the lifetime distribution is exponential and use an argument parallel to that of this example to obtain a 95% CI for expected (true average) lifetime. (Round your answers to two decimal places.) years...
Most questions answered within 3 hours.
-
If you have an eta squared of .34 and used a
between-subjects design, what does that...
asked 7 minutes ago -
*Healthcare Adminstration*
Scutchfield and Keck's Principles of Public Health Practice
4th edition
What are the differences...
asked 11 minutes ago -
Find the complete optimal solution to this linear programming
problem. Max 5x + 3y s.t. 2x...
asked 39 minutes ago -
The pH of an acetate buffer was determined to be 4.76. Then, a
few drops of...
asked 42 minutes ago -
a sample of size 1500 is used to find a confidence
interval for the percentage of...
asked 51 minutes ago -
Explain in detail the differences between qualitative and
quantitative forecasts. Include at least two examples of...
asked 56 minutes ago -
Differentiate between response time and throughput.
Explain how the physical design of a database influences
performance...
asked 58 minutes ago -
Write MATLAB code to plot the following
waveforms.
Rectangular pulses:
????(?)
????(? − ?)
????(?/?) ...
asked 58 minutes ago -
4. Adam’s Inc.’s outstanding common stock is currently selling
in the market for $28. Dividends of...
asked 1 hour ago -
question
you were
asked to create a regression that will predict the amount of saving
for...
asked 1 hour ago -
If tcalc = -2.78, tcrit = 1.96, H0: Mu > Mu0, and Xbar <
Mu0, what...
asked 1 hour ago -
Circular distribution
•Suppose two birds are flying, one is flying from the north and
the other...
asked 1 hour ago