Determine time required for population to double in years
Oopulation of california was 10290518 in 1940 and 23626378 in 1985. Suppose population increases exponentially. Determine time required for population to double (in years).
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Assume that you want to test the hypothesis Ho: p = 0.5 versus Ha: p < 0.5. Find out the sample size necessary in order to obtain a power of 0.8 when p = 0.4. Use α = 0.05.
The bridge is built in a shape of the parabolic arch. Bridge arch has the span of 142 feet and the maximum height of 35 feet. Determine height of arch at 20 feet from its center.
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Which of following statements are true in testing H-naught: mu=275 vs H-alternate: mu > 275 based upon a sample of size 15 from a normal population with unknown standard deviation, sigma? The test process needs the use of standard normal distri
The Wa-Wa water company produces bottles marked as 520 ml. Recently Wa-Wa has purchased new filling machine and it wants to see if the bottles are filled to an amount different than 520 ml.
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The mean value of Dimes per sample=9/7 and the variance of the dimes per sample=24/49.We define a random variable D=3K-10. Find the mean, variance , and standerd deviation for D?
Find whether system is consistent or inconsistent. If it is consistent, provide solution. Type 1st, 2nd and 3rd row equation it represents. {1 0 0 | -6} {0 1 0 | 8} {0 0 0 | -5}.
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