ZuoTi.Pro
Question

The time in days to development of a tumor for rats exposed to a carcinogen follows a Weibull distribution with p-0.01 and 1.5 (a) What is the probability a rat will be tumor free at 10 days? 30 days? (b) What is the mean time to tumor? (Hint: Γ(0.5)-v π and Γ(1.5-Γ(0.5)/2) c) Find the hazard rate of the time to tumor appearance at 15 days, 25 days, and 55 days. (d) Find the median time to tumor

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Trnt inalam to development ba home: for roL lexpesed to a caleinogen o-ol S (o.oltPs- (oolt)!:S ー st Or (0.01廿九 001o 72 0 968 1レ eto) o Ol 6. o 0 I0.015-(0.ok = (001 TEs value such a So, medea (o-ol to 0 プ右.5 0.01 70.32 s

0 0
Add a comment
Know the answer?
Add Answer to:
The time in days to development of a tumor for rats exposed to a carcinogen follows...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • This is a statistic question from survival analysis data Question: The Gompertz distribution is commonly used...

    This is a statistic question from survival analysis data Question: The Gompertz distribution is commonly used by biologists who believe that an exponential hazard rate should occur in nature. Suppose that the time to death in months for a mouse exposed to a high dose of radiation follows a Gompertz distribution with 0.01 and 0.25. Find (a) the probability that a randomly chosen mouse will live at least one year, (b) the probability that a randomly chosen mouse will die...

  • 1. Suppose that the length of time a particular type of battery lasts follows an exponential...

    1. Suppose that the length of time a particular type of battery lasts follows an exponential distribution with a mean of 25.0 days. Find the probability that the average time a sample of 49 batteries lasts is at most 24.7 days a. 0.4665 b. 0.3723 c. 0.6277 d. 0.5335 2. Suppose that the length of time a particular type of battery lasts follows an exponential distribution with a mean of 25.0 days. Suppose the length of time a battery lasts...

  • Please 77. A subway train on the 4 line arrives every sight minutes during rush hour....

    Please 77. A subway train on the 4 line arrives every sight minutes during rush hour. We are interested in the length of time a commuter must wait for a train to arrive.The time follows a uniform distribution. 1. Define the random variable. X_ 2. Х~ 3. Graph the probability distribution 7. 8. Find the probability that the commuter waits less than one minute. Find the probability that the commuter waits between three and four minutes. 9. Siorty percent of...

  • 1) Let x be a continuous random variable that is normally distributed with a mean of...

    1) Let x be a continuous random variable that is normally distributed with a mean of 21 and a standard deviation of 7. Find to 4 decimal places the probability that x assumes a value a. between 24 and 30. Probability = b. between 17 and 31. Probability = ------------------------------------------------------------------------------------------------------------------------------------------------------ 2) Let x be a continuous random variable that is normally distributed with a mean of 65 and a standard deviation of 15. Find the probability that x assumes a...

  • Statistic Q1(a) Mr. Sweetheart likes sugar in his hot tea. He buys sugar packets from a...

    Statistic Q1(a) Mr. Sweetheart likes sugar in his hot tea. He buys sugar packets from a local grocery store. Suppose the amount of sugar in a packet follows a normal distribution with mean 2.17 grams and standard deviation 0.08 grams. The amount of sugar in a package should be between 2.13 and 2.21 grams. Otherwise, a packet is considered to be defective. i. What is the probability that a randomly selected packet is defective? ii. Three sugar packets are chosen...

  • Based on the document below, 1. Describe the hypothesis Chaudhuri et al ids attempting to evaluate;...

    Based on the document below, 1. Describe the hypothesis Chaudhuri et al ids attempting to evaluate; in other words, what is the goal of this paper? Why is he writing it? 2. Does the data presented in the paper support the hypothesis stated in the introduction? Explain. 3.According to Chaudhuri, what is the potential role of thew alkaline phosphatase in the cleanup of industrial waste. CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...

  • 1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid...

    1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT