A sample of 64 resistors are taken from a production line and are found to have...
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A sample of 64 resistors are taken from a production line and are found to have a sample mean of 998 Ohms. The population distribution for the resistances is unknown but the population standard deviation is known to be 10 Ohms. (a) Find a 98% confidence interval for the population mean. (b) Test the claim that the population mean is greater than 1000 Ohms, using x= 0.02. A sample of 64 resistors are taken from a production line and are found to have a sample mean of 998 Ohms. The population distribution for the resistances is unknown but the population standard deviation is known to be 10 Ohms. (a) Find a 98% confidence interval for the population mean. (b) Test the claim that the population mean is greater than 1000 Ohms, using x= 0.02.
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