A Company Tests All New Brands Of Golf Balls To Ensure That They Meet Certain Specifications Ono Test Conducted Is Inte 1 (15.76 KiB) Viewed 107 times
A Company Tests All New Brands Of Golf Balls To Ensure That They Meet Certain Specifications Ono Test Conducted Is Inte 2 (10.79 KiB) Viewed 107 times
A company tests all new brands of golf balls to ensure that they meet certain specifications. Ono test conducted is intended to measure the average distance traveled when the ball is hit by a machine. Suppose the company wishes to estimate the mean distance for a new brand to within 1.3 yards with 90% confidence. Assume that past tests have indicated that the standard deviation of the distances the machine hits golf balls is approximately 12 yards. How many golf balls should be hit by the machine to achieve the desired accuracy in estimating the mean? The machine should hit golf balls to achieve the desired accuracy in estimating the mean. (Round up to the nearest golf ball.)
If you wish to estimate a population mean with a sampling distribution error SE = 0.26 using a 95% confidence interval and you know from prior sampling that o is approximately equal to 7.3. how many observations would have to be included in your sample? The number of observations that would have to be included in your sample is (Round up to the nearest observation)
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