The lifespan of 100-Watt light bulbs produced by a certain manufacturer is normally distributed with a mean of 1000 hours and a standard deviation of 80 hours. The sampling distribution for means from samples of size 25 from this population has a mean of 1000 hours and a standard deviation of 16 hours. Suppose you randomly select a sample of 25 bulbs produced by this manufacturer. What is the probability that the mean lifespan of the 25 bulbs is more than 1010 hours?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.