Mathematics, 24.10.2019 04:50 joelpimentel
Suppose we take two different random samples from the same population of test scores. the population mean and standard deviation are unknown. the first sample has 25 data values. the second sample has 64 data values. then we construct a 95% confidence interval for each sample to estimate the population mean. which confidence interval would you expect to have greater precision (smaller width) for estimating the population mean? (i) i expect the confidence interval based on the sample of 64 data values to be more precise. (ii) i expect both confidence intervals to have the same precision. (iii) i expect the confidence interval based on the sample of 25 data values to be more precise.
Answers: 3
Mathematics, 21.06.2019 22:00
If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]
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Mathematics, 21.06.2019 23:00
Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.
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Mathematics, 22.06.2019 01:20
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Mathematics, 22.06.2019 02:10
Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.
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Suppose we take two different random samples from the same population of test scores. the population...
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