Write down a correct null and alternative hypothesis
Write down a correct null and alternative hypothesis for testing the claim that mean life of battery for cell phone is at least 55 hours.
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The angle of elevation from the point A on ground to top of water tower is 19.9 degrees. Point B, 50 feet closer, has the angle of elevation of 21.8 degrees. Determine height of water tower?
Determine the null hypothesis and alternative hypothesis. Determine the test statisitic. Determine the P-value. What is the final conclusion
The propellers of Amazon Paradise have the radius of 1.2m. At full throttle propellers turn at 135rpm. Determine linear speed at tip of propeller blade in meters per seconds.
Develop both an ungrouped and a grouped frequency distribution for the data given below:
Assume the average lifetime of a car is 20 years and the lifetime follows the exponential distribution. What is the probability that the car lasts 26 years
Population of Bowlegs, Oklahoma, is 25000. Compute average walking speed. City's population has the average walking speed of 1.7 feet per second. Determine population of the city.
Determine c so that f(x) is a proper density function. Determine the cumulative distribution function of X. What is the probability P(0.1 . X . 0.5)?
A random variable X takes values between 0 and 4 with a cumulative distribution function
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