Mathematics, 12.11.2020 02:50 andyboehm7411
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The average income in a certain region in 2013 was $68,000 per person per year. Suppose the standard deviation is $31,000 and the distribution is right-skewed. Suppose we take a random sample of 100 residents of the region.
a. Is the sample size large enough to use the Central Limit Theorem for means? Explain.
b. What are the mean and standard error of the sampling distribution?
c. What is the probability that the sample mean will be more than $3,100 away from the population mean?
Answers: 3
Mathematics, 21.06.2019 17:30, zylovesnesha
If jaime wants to find 60% of 320, which table should he use?
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Mathematics, 21.06.2019 19:10, hannahbannana98
If i have 20$ and i gave 5$ away how much i got
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Mathematics, 21.06.2019 19:30, sofiisabella10
If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8
Answers: 2
Mathematics, 21.06.2019 21:30, isamilo520
Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.
Answers: 2
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