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A commercial refrigerator specification calls for a variance of less than 36 degree Celsius. You have...

A commercial refrigerator specification calls for a variance of less than 36 degree Celsius. You have been asked to conduct a study to determine if this is true or not. To do this, you have selected a random sample of 7 taken and find sample standard deviation equal to 7.0  At the 0.05 level of significance, can you conclude that the specification for the temperature variance is met?

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