99 coincidence interval Group of 19 Radom selected students Mean Age 22.4 Standard dievatuon 3.8
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- You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=29.2σ=29.2. You would like to be 95% confident that your esimate is within 0.2 of the true population mean. How large of a sample size is required?n = 9683 was mine but it was Incorrect. right answer 81888 can you break down the work please with the calculator aswellPetroleum pollution in oceans stimulates the growth of certain bacteria. An assessment of this growth has been made by counting the bacteria in each of 6 randomly chosen specimens of ocean water (of a fixed size). The 6 counts obtained were as follows. 40, 65, 67, 61, 57, 46 Send data to calculator Find the standard deviation of this sample of numbers. Round your answer to two decimal places. Continue Submit Assignment 3772 ICE 144 wet Vet %23 %24 96 6 7. 8. + becksosce cats T Y] lock A D pause V B N M. alt alt ctrl am op USE YOUR SMARTPHS ly connected. productive. a aportatir decorear SCA AI onQuestion 6 95 U Vetalis The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean of 38 and a standard deviation of 10. Using the empirical rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 8 and 48? Do not enter the percent symbol. ans = Question Help: DPost to forum
