Twenty-five blood samples were selected by taking every seventh blood sample from racks holding 187 blood samples from the morning draw at a medical center.

(a)Calculate the FPCF for this sample.(Round your answer to 4 decimal places.)

FPCF

(b)Should the population be considered effectively infinite?

multiple choice 2

Yes or no?

Find each Poisson probability, using a mean arrival rate of 10 arrivals per hour.

(a)Seven arrivals.(Round your answer to 4 decimal places.)

Poisson probability

(b)Three arrivals.(Round your answer to 4 decimal places.)

Poisson probability

(c)Fewer than five arrivals.(Round your answer to 4 decimal places.)

Poisson probability

(d)At least 11 arrivals.(Round your answer to 4 decimal places.)

Poisson probability

If the weight (in grams) of cereal in a box of Lucky Charms isN(470,5), what is the probability that the box will contain less than the advertised weight of 453 g?(Round your answer to 4 decimal places.)

Probability

Passengers using New York's MetroCard system must swipe the card at a rate between 10 and 40 inches per second, or else the card must be reswiped through the card reader. Research shows that actual swipe rates by subway riders are uniformly distributed between 5 and 50 inches per second.

(a)What is the mean swipe rate?(Round your answer to 2 decimal places.)

Meaninches per second

(b)What is the standard deviation of the swipe rate?(Round your answer to 2 decimal places.)

Standard deviationinches per second

(c)What are the quartiles?(Round your answers to 2 decimal places.)

1^stQuartileinches per second3^rdQuartileinches per second

(d)What percentage of subway riders must reswipe the card because they were outside the acceptable range?(Round your answer to 2 decimal places.)

Re-swipe%

The probability that an international flight leaving the United States is delayed in departing (eventD) is .25. The probability that an international flight leaving the United States is a transpacific flight (eventP) is .57. The probability that an international flight leaving the U.S. is a transpacific flight and is delayed in departing is .12.

(a)What is the probability that an international flight leaving the United States is delayed in departing given that the flight is a transpacific flight?(Round your answer to 4 decimal places.)

Probability

(b)In this problem, areDandPindependent?

multiple choice

• Yes
• No

The following contingency table shows average yield (rows) and average duration (columns) for 38 bond funds.

Average Portfolio DurationYieldShort

(D₁)Intermediate

(D₂)Long

(D₃)Row TotalSmall (Y₁)6219Medium (Y₂)24612High (Y₃)36817Column Total11121538

Click here for the Excel Data File

For a randomly chosen bond fund, find the probability of the following:(Round your answers to 4 decimal places.)

a.The bond fund is of long duration.b.The bond fund has high yield.c.The bond fund has high yield given that it is of short duration.d.The bond fund is of short duration given that it has high yield.

A certain model of remote-control Stanley garage door opener has nine binary (off/on) switches. The homeowner can set any code sequence.

(a)How many separate codes can be programmed?

Separate codes

(b)If you try to use your door opener on 1,000 other garages, how many times would you expect tosucceed?(Round your answer to the nearest integer.)

Succeedtimes

The probability that an international flight leaving the United States is delayed in departing (eventD) is .25. The probability that an international flight leaving the United States is a transpacific flight (eventP) is .60. The probability that an international flight leaving the U.S. is a transpacific flight and is delayed in departing is .15.

(a)What is the probability that an international flight leaving the United States is delayed in departing given that the flight is a transpacific flight?(Round your answer to 4 decimal places.)

Probability

(b)In this problem, areDandPindependent?

multiple choice

• No
• Yes

In a sample of 100 Planter's Mixed Nuts, 19 were found to be almonds.

(a)Construct a 90 percent confidence interval for the true proportion of almonds.(Use a z-value taken to three decimal places in your calculations. Round your answers to 3 decimal places.)

The 90% confidence interval is fromto.

(b)May normality be assumed?

multiple choice

• Yes
• No

(c)What sample size would be needed for 90 percent confidence and an error of 0.03?

Sample size

(a)A poll of 2,291 likely voters was conducted on the president's performance. Approximately what margin of error would the approval rating estimate have if the confidence level is 95%?(Round your answer to 4 decimal places.)

Margin of error

(b)The poll showed that 46 percent approved the president's performance. Construct a 90 percent confidence interval for the true proportion.(Round your answers to 4 decimal places.)

The 90% confidence intervalis fromto

(c)Would you agree that the percentage of all voters opposed is likely to be 50 percent?

multiple choice

• Yes, the confidence interval contains .50.
• No, the confidence interval does not contain .50.

A random sample of 30 lunch orders at Noodles & Company showed a standard deviation of $5.31. Find the 90 percent confidence interval for the population standard deviation. Use Excel to obtain

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(Round your answers to 2 decimal places.)

The 90% confidence interval is fromto.

The amount of fill in a half-liter (500 ml) soft drink bottle is normally distributed. The process has a standard deviation of 2.0 ml. The mean is adjustable.

(a)Where should the mean be set to ensure a 95 percent probability that a half-liter bottle will not be underfilled?(Round your answer to 2 decimal places.)

Meanml

(b)Where should the mean be set to ensure a 99 percent probability that a half-liter bottle will not be underfilled?(Round your answer to 2 decimal places.)

Meanml

(c)Where should the mean be set to ensure a 99.9 percent probability that a half-liter bottle will not be underfilled?(Round your answer to 2 decimal places.)

Meanm