Recall that Buyer's Digest is rating ThermoRite thermostats. Buyer's Digest gives an ?acceptable rating to a thermostat
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Question:
Recall that Buyer's Digest is rating ThermoRite thermostats. Buyer's Digest gives an ?acceptable" rating to a thermostat with a temperature variance of 0.5 or less. We will conduct a hypothesis test (with ? = 0.10) to determine whether the ThermoRite thermostat's temperature variance is "acceptable.
Step 1: Write Hypotheses
Step 2: Test Statistics.
Step 3: Rejection Rule
Step 4: Conclusion.
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