rare form of malignant tumor occurs in 11 children in a​ million, so its probability is 0.000011. Four cases of this tumor occurred in a certain​ town, which had 12,640 children.   a. Assuming that this tumor occurs as​ usual, find the mean number of cases in groups of 12,640 children. b. Using the unrounded mean from part ​(a​), find the probability that the number of tumor cases in a group of 12,640 children is 0 or 1. c. What is the probability of more than one​ case?

Q: The amount of time a Roanoke College student spends on Instagram has an approximately exponential…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: c) Assume this is a simple random sample of U.S. women. Use the Empirical Method to estimate the…

A: Given that: X represents no. Of children  f represents no. Of women  A frequency table is given by…

Q: Suppose that you want to determine the number of people who will attend a conference this year. In…

A: Given information: The investigator wants to determine the umber of people who will attend a…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Given a normal population whose mean is 665 and whose standard deviation is 24, find each of the…

A: The following information has been given: The population mean is μ=665. The population standard…

Q: Given a normal population whose mean is 325 and whose standard deviation is 73, find each of the…

A: GivenMean(μ)=325standard deviation(σ)=73

Q: 3. A surgical technique is performed on ten patients. You are told there is an 83% chance of…

A: Givenn=10p=0.83

Q: 4. The following data give the speeds (in miles per hour) of eight cars that were stopped onI-95 for…

A: Given:The speeds (in miles per hour) of eight cars that were stopped on I-95 for speeding…

Q: The 2008 general social survey asked a nationally representative sample of 1324 adult americans to…

A: Step 1The cumulative frequency is the total of all frequencies, where the frequency of the first…

Q: You want to see if it makes a difference which lane to be in when there is traffic. You randomly…

A: According to our policy we can answer only first three part for remaining please repost the…

Q: Is the mean level in the sample significantly different from the population mean?   b. What…

A: Hypotheses can be constructed as: H0: µ=4.5 H1: µ≠4.5 Data collected from 5 college students is: 7,…

Q: Four rats are selected at random from a cage of 5 male (M) and 4 female (F) rats. If the random…

A: Total number of rats N = 9 Number of male rates K = 5 Rats chosen in sample n = 4

Q: Q5. The mean and standard of the weights of identical concrete specimens are 150 and 45 lb…

A: GivenMean(μ)=150standard deviation(σ)=45sample size(n)=50

Q: Consider a binomial distribution. About 35% of all college students are currently enrolled in an…

A: Given : Probability of success = p = 0.35 Number of sample = n = 25

Q: The national distribution of fatal work injuries in a country is shown in the table to the right…

A: The data table of the of fatal work injuries' national distribution:It is belived that the…

Q: school conducted an IQ test to 32 randomly selected students. The standard deviation in the same…

A:

Q: The probability of a transformer that has been refurbished at a factory being defective is 0.15. An…

A: Given the probability of a transformer that has been refurbished at a factory being defective =…

Q: About 7% of the population has a particular genetic mutation. 200 people are randomly selected. Find…

A: Sample size (n) = 200P(genetic mutation) = p = 0.07X = Number of people with genetic mutationMean of…

Q: Q2. Among a group of five people selected at random from a certain population it is known that the…

A: Given:  The number of people in a group are n=5. The probability that no one will be 35 or over is…

Q: uppose that the heights of female adults in the United States are normally distributed with a mean…

A: Solution-: Given: μ=65.4inches,σ=2.8inches We obtained the following: (a) P(X is between 66 and 70…

Q: A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011.…

A: In this case, each considered child has the only options of "having a tumor" (let's define as…

Q: 5.) If the number 12.3 were added to the dataset below, which statement best describes how its mean…

A: Without the the value 12.3, Here, N=8. Now, arrange values in an ascending order. Then,Mean=Sum of…

Q: The average house has 11 paintings on its walls. Is the mean larger for houses owned by teachers?…

A: The level of significance is 0.10.

Q: 3. Suppose the 3 friends want to investigate the types of cars that students at WSU drive. Using the…

A:

Q: 2. The lengths (in feet) of a random sample of suspension bridges in the United States, Europe, and…

A:

Q: a) Find the mean of p, where p is the proportion of defective light bulbs in a sample of 4400 when…

A: From the given information we find the solution.

Q: Each person in random samples of 247 male and 263 female working adults living in a certain town in…

A: Male Female x¯ 30.60 28.3 s 24 24.3 n 247 263 To test the hypothesis : H0 : μ1-μ2=0H1:…

Q: The Mean for a Binomial Distribution is A. p В. q С. пр D. npq

A: X ~ B (n, p) P(X=x) = Cxn px(1-p)n-x  ; x=0,1....n                              0≤p≤1 ,  q=1-p n -…

Q: Dandelions are studied for their effects on crop production and lawn growth. In one region, the mean…

A: Since the probability for the given variable (that is discrete in nature), i.e., the probability of…

Q: The events are approximately independent because 0.700 = 0.700.  The events are not independent…

A: Two events, A and B, are independent ifP(A and B) = P(A) x P(B)We can then rearrange this…

Q: An ANOVA is used to compare the mean GPA of the following groups of students.

A: Rejection Rule:   If the absolute mean difference is greater than HSD(=0.8), then the pairs of…

Q: Find the probability that the mean weight of a sample of 25 bookbags will exceed 7 pounds.

A: Here use central limit theorem and standard normal distribution table for probability from z score

Q: Construct a probability histogram for variable X.

A: The probability values are, X Frequency Probability 5 25 25125=0.20 7 40 40125=0.32 8 60…

Q: Q2/ Clothes manufacturing machine, the probability of appearing damaged products is C At the…

A:

Q: a. The mean of this distribution is b. The standard deviation is c. The probability that the the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…