Ajournalist wants to determine the average annual salary of ceos in the s& p 1,500. he does not have time to survey all 1,500 ceos but wants to be 95% confident that his estimate is within $50,000 of the true mean. the journalist takes a preliminary sample and estimates that the standard deviation is approximately $449,300. what is the minimum number of ceos that the journalist must survey to be within $50,000 of the true average annual salary? remember that the z-value associated with a 95% confidence interval is 1.96.

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step-by-step explanation:

idk

step-by-step explanation:

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours