It says 24 hours but the right answer is 25 hours. Tell me what the correct answer is.
Answer: 60
Step-by-step explanation:
144 beads divided by 3 would equal how many black beads there are, which is 48. 144 beads divided by 4 would be how many purple beads there are. which is 36. You would add the black beads and the purple beads, or 36 + 48, to get the total of both. 36 + 48 = 84. You would take the 144 beads total minus the 84 black and purple beads, which is 60.
The bottom answer. Bc I am learning this is class.
Answer:
Step-by-step explanation:
Using this table, the critical value for the 90% confidence level is 1.645 (note: look in the row that starts with infinity and look for the value above 90%)
So z = 1.645
Given Information:
n = 40
s = 32
A hospital emergency room has collected a sample of n = 40 to estimate the mean number of visits per day. It has found the standard deviation is 32. Using a 90 percent confidence level, what is its margin of error?
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sample mean:: x-bar = 40
ME = 1.645(32/sqrt(40)) = 8.32