B. H0 : There is no association between race and the section of the apartment complex.
H A: There is an association between race and the section of the apartment complex.
Find the χ2 statistic
Solution
The formula for calculating χ2 statistic is given by ;
χ2∗ =∑(Oi−Ei)2/Ei, where Oi and Ei is the i^th observation and the i^th expected count
From the given data calculated the expected count using the formula; E = (row total *column total)/sample size
χ2 = 7.104439336,
χ2 = 7.104 (rounded to 3 decimal .places)
The P-value is;
Degrees of freedom = (2-1)*(2-1) = 1, χ2 = 7.1044
P-value from chi-square calculator is 0.007689
Huey Long guaranteed a free training through school and benefits for the matured, which he can't do on the grounds that it is the administration's business to settle on these choices. He likewise he raised duties to make healing facilities to take into account poor people and enhance ignored streets and scaffolds inside the state
Answer:
12.88%
Explanation:
Angela's disposable income $2,368
monthly expenses including recreational expenses ($2,127)
net cash flow $241
after expenses are reduced by $64, her net cash flow will increase to $305
Angela's monthly savings rate = (net cash flow / disposable income) x 100 = $305 / $2,368 = 12.88%
A person's savings rate is how much money they save (do not spend) compared to their total disposable income.
Answer: should be protected due to the fact that their account is insured by FDIC.
Explanation:
From the question, we are informed that after Xavier and Alyssa deposited nearly $55,000 in a savings account at Bigbux Bank, the bank failed and filed for bankruptcy but that the Bigbux was an FDIC member bank.
Based on the above scenario, Xavier and Alyssa should be protected due to the fact that their account is insured by FDIC. Since the bank is insured, their money is safe.
Answer:
The store manager is 95% confident that the average amount spent by all customers is between $ 31.84 and $ 38.66.
Explanation:
In statistics, a confidence interval is the probability that the parameter of a population lies between two set of values when a random sample of the population is drawn for a specific percentage of times. This means that the confidence interval is formed about the whole population not the sample from which it is calculated.
The probabilities of a confidence interval can take any number, but 95% and 99% confidence level that are usually used.
It should be noted that, for example, 95% confidence level implies that there is a 95% chance that the true mean of the population lies within the calculated confidence interval.
Therefore, the statement which gives a valid interpretation of the interval in the question is the first one which states that "the store manager is 95% confident that the average amount spent by all customers is between $ 31.84 and $ 38.66."
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