Chi-square analysis - Goodness of fit In the laboratory, a genetics student crossed flies with normal long wings to flies with mutant dumpy wings, which she believed was a recessive trait. In the F₁, all flies had long wings. In the F₂, the following results were obtained: 792 long-winged flies 208 dumpy-winged flies The student tested the hypothesis that the dumpy wing is inherited as a recessive trait by performing x2 analysis of the F₂ data. (a) What ratio did the student hypothesis? (b) Did the x2 analysis support the hypothesis? (c) What do the data suggest about the dumpy mutation?

Q: Find the correct class boundaries for 0- 3.9524?

A: The given interval is 0 - 3.9524.

Q: I need answer to below questions in 4-5 sentence only. Why is the graph of X-S used for n> 10?…

A: To answer Why is the graph of X-S used for n> 10? What are Shewhart's rules? What are the…

Q: The average number of defective parts manufactured during a shift at a technology factory is…

A: Introduction: It is required to identify the shift that is doing the best job.

Q: 1. Sample data about the listing price of a house is collected from Surrey, Guilford area in 2022…

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

Q: Meredith Grey has asked every surgeon at Grey-Sloan Memorial Hospital the following question: "How…

A: Solution:  The observation in increasing order is 30, 40, 50, 50,50,  55, 55, 55, 60, 65, 70, 70,…

Q: Meredith Grey has asked every surgeon at Grey-Sloan Memorial Hospital the following question: "How…

A: Given data(X) of the surgeries;…

Q: Which of these is not a binomial probability of X~B(12,0.4)? A. P(X-5) = ¹2Co(0.4)5(0.6)7 B.…

A: Let X be the random variable from binomial distribution with probability of success (p) = 0.4 and…

Q: In September a biological research team caught, weighed, and released a random sample of 24…

A: According to the given information in this question We need to find the 90% confidence interval

Q: A normal distribution has a mean of 40 and a standard deviation of 5. Find the probability that…

A: Given that : Mean =40 Standard deviation =5

Q: The data below have been taken from the cost records of the Halifax General Hospital. The data…

A: This question requires us to analyze the cost records of Halifax General Hospital and create a…

Q: For the hypotheses below, test a=0.025 with n= 100 and p = 0.69. State a. the decision rule in terms…

A: According to the given information in this question We need to answer all the parts

Q: How hard is it to reach a businessperson by phone? Let p be the proportion of calls to…

A: Given that  Margin of error =E =0.054 80% confidence level.

Q: Suppose the number of hours of sleep a person gets per night follows a normal distribution with a…

A: The question is about normal distribution Given : Popl. mean no. of sleep ( μ ) = 7 hours Popl. std.…

Q: 20 29 4 30 38 1 Maximum: T 40 First quartile: T 50 55 1 T 68 T 70 73 80 T 90 98 T 100

A: A box and whisker plot is a graphical representation that represents the distribution of data. It…

Q: x P(x) 0 0.1 1 0.2 2 0.2 3 0.5 Find the mean of this probability distribution. Round your answer…

A: x p(x) x*p(x) 0 0.10 0.00 1 0.20 0.20 2 0.20 0.40 3 0.20 0.60     1.20

Q: The death rate per 100,000 for lung cancer is 7 among nonsmokers and 71 among smokers. The…

A: Given that: People with lung cancer among nonsmokers, R0=7 People with lung cancer among smokers,…

Q: Calculate the odds ratio to examine the association between retail work and housing security. Round…

A: It is given that,  The researcher conducted a case-control study to check the relationship between…

Q: Dermine whether the interaction between type of word and classification category is statistically…

A: The null hypothesis, H0:  There is no interaction effect between type of word and classification…

Q: There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on…

A: From the provided information, For ACT score: Mean (µ) = 21.5 Standard deviation (σ) = 5.4 For SAT…

Q: Events A and B are independent with p(A) = 0.2 and p(B) = 0.5. Find p(A B).

A: Given  Events A and B are independent with p(A) = 0.2 and p(B) = 0.5. Find p (A B). =?

Q: When studying radioactive material, a nuclear engineer found that over 365 days, 1,000,000…

A: Given that: Number of atoms decayed during 365 days = 24927 Total number of days = 365

Q: It is believed that using a solid state drive (SSD) in a computer results in faster boot times when…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Fit these three regression models and then discuss the similarities and differences between them,…

A: Given three regression output for Brand liking with respect to independent variables sweetness,…

Q: The amount of time it takes an Intro to Statistics instructor to grade an individual exam is a…

A: Given that Sample size (n)=64  Population mean μ=3  Standard deviation σ=1 Let X denotes the amount…

Q: The weight of frogs in grams in a marsh population are normally distributed with mean (u) equal to…

A: The question is about normal distribution Given : Popl. mean weight of frogs ( μ ) = 23.5 grams…

Q: the following is the corresponding relativ Frequency 6 8 3 8 Value 1 2 4

A: From the provided information, Value Frequency 1 6 2 8 3 3 4 8   Total= 25

Q: Consider the following optimization problem: min X + 2Y s.t. 3X+Y≤ 10 After solving it, the optimal…

A: Optimization problems are a common tool in many fields, including economics, engineering, and…

Q: The probability of winning on an arcade game is 0.664. If you play the arcade game 22 times, what is…

A: Given  P=0.664 n=22 Find P(X≤9)=?

Q: Given the following frequency table, calculate the mean of X.  (Please round your answer to 2…

A: Given information: The frequency table is given such that, X 16 17 18 19 20 fX 2 5 4 3 1

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

A: Given information- Obtain the 85% confidence interval for the population proportion of Americans…

Q: The probability distribution for the number of students in Statistics classes offered at a small…

A: X P(X) 22 0.18 23 0.22 24 0.25 25    26 0.2

Q: In a sample of n=20 what would be the student's  t test statistic for a correlation of r=0.400?

A: The question is about testing of correlation Given : Sample size ( n ) = 20 Correlation coeffi. ( r…

Q: A variable is normally distributed with mean 10 and standard deviation 2. a. Find the percentage of…

A: given data normal distributionμ = 10σ = 2

Q: Suppose the heights of a group of people follow a normal distribution with a mean of 170 cm and a…

A: The formula of z score is             z=x-μσ From the given data Mean = µ = 170,  Standard deviation…

Q: A hypothesis test is conducted at the 5 per cent level of significance to test whether the…

A: given data α = 0.05n = 25r = 0.60test statistic = ?

Q: 12. Calculate the following probabilities using the corresponding table. Experimental distribution…

A:

Q: Mean (µ) = 187 Standard deviation (σ) = 7 Sample size (n) = 43 For part b), is the assumption…

A: From the provided information, Mean (µ) = 187 Standard deviation (σ) = 7 Sample size (n) = 43

Q: John is 6 feet 2 inches tall. What measurement scale is this?

A: Given: John is 6 feet 2 inches.

Q: The defect length of a corrosion defect in a pressurized steel pipe is normally distributed with…

A: given data, normal distriubutionμ=30σ=7.2we have to find out the given probabilties.

Q: The average owning and operating costs for four types of vehicles in a country for a recent year…

A: Given The data is as follows: The avg. owning and operating costs for 4 types of vehicles are as…

Q: Suppose the scores on a statistics exam follow a normal distribution with a mean of 70 and a…

A: GivenMean(μ)=70standard deviation(σ)=10

Q: Exercise 12. Let X,Y,Z~ N(0,1) be independent. Determine the distribution, expectation and variance…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: A small island country with less than 20,000 cars has decided to reissue the license plates for its…

A:

Q: he heights of European 13-year-old boys can be approximated by a normal model with mean ? of 63.7…

A: approximetly normal distributionμ=63.7σ=2.53we have to find out the probability for the given data.

Q: An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars…

A: The question is about sample size estimation Given : Popl. prop. ( p ) = 0.32 Confidence level =…

Q: Express the confidence interval 30.1%<p<41.5% in the form of p+_E

A: given data, confidence interval 30.1%&lt;p&lt;41.5%p±E=?

Q: Consider the following sample:     15   25   29   44   54   66   82   92   92    95   100   the mean…

A: given data  15,25,29,44,54,66,82,92,92,95,100 x¯ = 63.0909s = 31.2904for x = 44, Z = ?

Q: A major oil company has developed a new gasoline additive that is supposed to increase mileage. To…

A: Let d=(gas mileage with additive)−(gas mileage without additive)

Q: In a regression analysis involving 30 observations, the following estimated regression equation was…

A: Let y denotes the dependent (or study) variable that is linearly related to k independent (or…

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A: Let x1=The number of male internet users. And x2=The number of female internet users. With the usual…