KJ
Kisha Jeanty
Answers (5)
KJ
Answered
After constructing a confidence interval estimate for a population mean, you believe that the interval is useless because it is too wide. In order to correct this problem, you need to:
A) increase the population size
B) increase the sample mean
C) increase the confidence coefficient
D) increase the sample size
E) decrease the sample size
A) increase the population size
B) increase the sample mean
C) increase the confidence coefficient
D) increase the sample size
E) decrease the sample size
On Jun 14, 2024
D
KJ
Answered
The number x of people entering the intensive care unit at a particular hospital on any one day has a Poisson probability distribution with mean equal to four persons per day.
What is the probability that the number of people entering the intensive care unit on a particular day is two?
______________
What is the probability that the number of people entering the intensive care unit on a particular day is Less than or equal to two?
______________
Is it likely that x will exceed ten?
______________
Explain.
________________________________________________________
What is the probability that the number of people entering the intensive care unit on a particular day is two?
______________
What is the probability that the number of people entering the intensive care unit on a particular day is Less than or equal to two?
______________
Is it likely that x will exceed ten?
______________
Explain.
________________________________________________________
On Jun 12, 2024
0.146525; 0.238103; No; The value x = 10 lies 3.0 standard deviations above the mean.
KJ
Answered
Which of the following two payment streams has the greater economic value today if money can earn 3.5%: $500 now, $600 in three months, plus $900 in six months or $700 now, $300 in three months, plus $1,000 in nine months?
On May 14, 2024
$1,979.32 versus $1,972.40; therefore, option 1
KJ
Answered
You can purchase a residential building for $100,000 cash or $20,000 down and quarterly payments $3,000 for 10 years. The first payment would be due three months after the purchase date. If money can earn 10% compounded quarterly during the next 10 years, which option should you choose?
A) Both are equally as good so choose either one.
B) $100,000 cash
C) Neither option can earn 10% compounded quarterly so do nothing.
D) Not enough information to decide.
E) $20,000 down and $3,000 per quarter for 10 years.
A) Both are equally as good so choose either one.
B) $100,000 cash
C) Neither option can earn 10% compounded quarterly so do nothing.
D) Not enough information to decide.
E) $20,000 down and $3,000 per quarter for 10 years.
On May 13, 2024
E
KJ
Answered
Which of the following is the conclusion?
A) The null hypothesis that the average profit per customer exceeds $25 cannot be rejected.
B) The null hypothesis that the average profit per customer does not exceed $25 is rejected.
C) The null hypothesis that the average profit per customer does not exceed $25 cannot be rejected.
D) The null hypothesis that the average profit per customer exceeds $25 is rejected.
A) The null hypothesis that the average profit per customer exceeds $25 cannot be rejected.
B) The null hypothesis that the average profit per customer does not exceed $25 is rejected.
C) The null hypothesis that the average profit per customer does not exceed $25 cannot be rejected.
D) The null hypothesis that the average profit per customer exceeds $25 is rejected.
On May 12, 2024
B