In a group of 45 mice, there are 10 that have a certain genetic character. suppose...
In a group of 45 mice, there are 10 that have a certain genetic character. suppose that 7 mice are randomly selected ( 7 different mice are chosen - a single mouse cannot be chosen more than once). what is the probability that there is at least one mouse with genetic character in the 7 randomly selected mice ?
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In a group of 45 mice, there are 10 that have a certain genetic
character. suppose...
Bob is an oncologist who focuses on the genetics of lab mice. He is researching a...
Bob is an oncologist who focuses on the genetics of lab mice. He is researching a particular gene that has 29 different alleles (that is, there are 29 different variants of the gene). A mouse is equally likely to carry any of these 29 alleles. (a) Suppose that Bob has 11 mice. He will run a genetic test to determine the allele of each separate mouse. Let Y1 be the allele of mouse 1, Y2 be the allele of mouse 2,...
Please answer the question and provide a brief justification Suppose 60 mice with high genetic susceptibiltiy...
Please answer the question and provide a brief
justification
Suppose 60 mice with high genetic susceptibiltiy to developing a specific type of tumor are randomly assigned to either a low calorie diet or a high calorie diet. After a month, the mice on the low calorie diet have developed statistically significantly fewer tumors (at 0.05 level) than mice of the high calorie diet. Can we conclude ihat the dicis camd the rcduction in Why or why noi?
Question 1 In a learning experiment, untrained mice are placed in a maze and the time...
Question 1 In a learning experiment, untrained mice are placed in a maze and the time required for each mouse to exit the maze is recorded. The average time for untrained mice to exit the maze is μ = 50 seconds and the standard deviation of their times is ơ-16 seconds. Sixty four randomly selected untrained mice are placed in the maze and the time necessary to exit the maze is recorded for each. a) Completely describe the sampling distribution...
A gene array used to determine which genes are being transcribed under certain experimental conditions contains...
A gene array used to determine which genes are being transcribed under certain experimental conditions contains 500 genes. A genetic algorithm is used to determine which promoters most likely resulted in the pattern of gene array data found in an experiment. This algorithm requires selection (randomly) of a list of 20 genes out of the 500 genes on the array. (No gene can appear more than once in a single list, and the order of the list is not important.)...
(3) Suppose the length of stay in a chronic disease hospital of a certain type of...
(3) Suppose the length of stay in a chronic disease hospital of a certain type of patient has the mean of 60 days with a standard deviation of 15 days. It is reasonably to assume an approximately normal distribution of the lengths of stay (a) If one patient is selected from this group at random, what the probability that this patient will have a length of stay between 50 and 90 days? at is selected from this group at random,...
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is to be selected to be checked for defects 9. How many different samples can be chosen? a. How many samples will contain...
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is to be selected to be checked for defects 9. How many different samples can be chosen? a. How many samples will contain at least one defective table? b. What is the probability that a randomly chosen sample of 7 contains at least one defective table? c.
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is...
10 In a certain country tthe probability a randomly selected adult is literate is 0.89. Suppose...
10
In a certain country tthe probability a randomly selected adult is literate is 0.89. Suppose we draw a simple random sample of 11 adults from this country. a) What is the probability exactly 9 are literate? Round your response to at least 3 decimal places. Number b) What is the probability more than 9 are literate? Round your response to at least 3 decimal places. Number
You are dealt two cards successively (without replacement) from a shuffles deck of 52 playing cards....
You are dealt two cards successively (without replacement) from a shuffles deck of 52 playing cards. Find the probability that the first card is king and the second card is queen. 7. An IRS auditor randomly selects 3 tax returns from 58 tax returns of which 8 contain errors. What is the probability that she selects none of those containing errors? 8. 9. A sample of 4 different calculators is randomly selected from a group containing 47 that are defective...
5. Suppose 85% of all batteries from a supplier have acceptable voltages. A certain type of...
5. Suppose 85% of all batteries from a supplier have acceptable voltages. A certain type of flashlight requires two type-D batteries, and the flashlight will work only if both its batteries have acceptable voltages. Treat all batteries and flashlights as independent of each other. (a) In 20 randomly selected batteries, what is the probability that 19 or 20 have acceptable voltages? (b) Suppose 20 randomly selected batteries are placed into 10 flashlights. What is the probability that at least 9...
For questions 13-16: Light exposure in mice Studies show that night-time light exposure is hamful to...
For questions 13-16: Light exposure in mice Studies show that night-time light exposure is hamful to human health. A recent 6-week study randomly assigned lab mice to one of three conditions: LD (Group 1) had a standard light/dark cycle cach 24-hour period; (Group 2) LL had bright light all the time, and (Group 3) DM had dim light when there nomally would have been darkness. The rescarchers hoped to investigate how light exposure interacts with eating and sleeping cycles and...
Please answer the question and provide a brief
justification
Suppose 60 mice with high genetic susceptibiltiy to developing a specific type of tumor are randomly assigned to either a low calorie diet or a high calorie diet. After a month, the mice on the low calorie diet have developed statistically significantly fewer tumors (at 0.05 level) than mice of the high calorie diet. Can we conclude ihat the dicis camd the rcduction in Why or why noi?
Question 1 In a learning experiment, untrained mice are placed in a maze and the time required for each mouse to exit the maze is recorded. The average time for untrained mice to exit the maze is μ = 50 seconds and the standard deviation of their times is ơ-16 seconds. Sixty four randomly selected untrained mice are placed in the maze and the time necessary to exit the maze is recorded for each. a) Completely describe the sampling distribution...
(3) Suppose the length of stay in a chronic disease hospital of a certain type of patient has the mean of 60 days with a standard deviation of 15 days. It is reasonably to assume an approximately normal distribution of the lengths of stay (a) If one patient is selected from this group at random, what the probability that this patient will have a length of stay between 50 and 90 days? at is selected from this group at random,...
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is to be selected to be checked for defects 9. How many different samples can be chosen? a. How many samples will contain at least one defective table? b. What is the probability that a randomly chosen sample of 7 contains at least one defective table? c.
Suppose that 4 tables in a production run of 50 are defective. A sample of 7 is...
10
In a certain country tthe probability a randomly selected adult is literate is 0.89. Suppose we draw a simple random sample of 11 adults from this country. a) What is the probability exactly 9 are literate? Round your response to at least 3 decimal places. Number b) What is the probability more than 9 are literate? Round your response to at least 3 decimal places. Number
You are dealt two cards successively (without replacement) from a shuffles deck of 52 playing cards. Find the probability that the first card is king and the second card is queen. 7. An IRS auditor randomly selects 3 tax returns from 58 tax returns of which 8 contain errors. What is the probability that she selects none of those containing errors? 8. 9. A sample of 4 different calculators is randomly selected from a group containing 47 that are defective...
5. Suppose 85% of all batteries from a supplier have acceptable voltages. A certain type of flashlight requires two type-D batteries, and the flashlight will work only if both its batteries have acceptable voltages. Treat all batteries and flashlights as independent of each other. (a) In 20 randomly selected batteries, what is the probability that 19 or 20 have acceptable voltages? (b) Suppose 20 randomly selected batteries are placed into 10 flashlights. What is the probability that at least 9...
For questions 13-16: Light exposure in mice Studies show that night-time light exposure is hamful to human health. A recent 6-week study randomly assigned lab mice to one of three conditions: LD (Group 1) had a standard light/dark cycle cach 24-hour period; (Group 2) LL had bright light all the time, and (Group 3) DM had dim light when there nomally would have been darkness. The rescarchers hoped to investigate how light exposure interacts with eating and sleeping cycles and...
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