3. A new training program says that it can improve worker productivity by 50 units per...

3. A new training program says that it can improve worker productivity by 50 units per hour. A test of 100 employees trained under the new program showed an average improvement of 51 units per hour and the standard deviation is known 5 units per hour.

Testing at a .05 level of significance what can we conclude? Hint two tailed test

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orchestra answered 1 year ago

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