Question: This a statistics question , can you solve and explain that please The average lifetime of a light bulb is 3000 hours with a standard

This a statistics question , can you solve and explain that please

This a statistics question , can you solve and explain that please

The average lifetime of a light bulb is 3000 hours with a standard deviation of 900 hours. A simple random sample of 40 bulbs is taken. What is the distribution of * ? What is the probability that the average life time in the sample will be between 2600 and 3100 hours? MX = M Ox = 0/Vn 2 = x - ol Vn volution Find the z value so that 10% of the area under the standard normal pictures lies to the left of z. atmosph ion theor

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