Question

P - values 3. An aircraft manufacturer needs specialty steel rods with a tensile strength of at least 5,000 pounds. The firm's quality inspector tests a random sample of incoming steel rods. 64 rods are tested (n=64). The standard deviation is 800 pounds. (Assume that this represents the known population standard deviation $sigma$). The inspector finds a mean strength of $ar{X}$ = 4800 pounds. Test $H_0$: $mu ge$ 5000 pounds versus $H_A$: $mu$ < 5000. Use $alpha$ = .05. What is the p-value here?

          P - values
3.
An aircraft manufacturer needs specialty steel rods with a tensile strength of at least 5,000
pounds. The firm's quality inspector tests a random sample of incoming steel rods.
64 rods are tested (n=64). The standard deviation is 800 pounds. (Assume that this
represents the known population standard deviation $sigma$).
The inspector finds a mean strength of $ar{X}$ = 4800 pounds.
Test $H_0$: $mu ge$ 5000 pounds versus $H_A$: $mu$ < 5000. Use $alpha$ = .05.
What is the p-value here?

P - values
3.
An aircraft manufacturer needs specialty steel rods with a tensile strength of at least 5,000
pounds. The firm's quality inspector tests a random sample of incoming steel rods.
64 rods are tested (n=64). The standard deviation is 800 pounds. (Assume that this
represents the known population standard deviation sigma).
The inspector finds a mean strength of arX = 4800 pounds.
Test H0: mu ge 5000 pounds versus HA: mu < 5000. Use alpha = .05.
What is the p-value here?

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