Statistics Question

Q: The attached dataset contains information on the 50 states in the US, including 2 categorical and 13…

A: Researchers collect either primary or secondary data to conduct the analysis about their hypothesis.…

Q: Find the probability P (0<x<) for f(x) = x². cos x³ 0.235 O 0.304 O 0.908 O 0.413 O 0.678 O 0.112 O…

A: We need to find the probability P(0&lt;x&lt;π/3) for f(x)=x2 cos x3

Q: significance level, does this show significant correlation?

A: Given Correlation coefficient r=0.227, level of significance ɑ=0.05, n=sample size=30

Q: An estimator both precise: that is and accurate Parameter

A: Estimator: A statistic is used to estimate a characteristic of the population. It is based on the…

Q: Customers arrive in a certain shop has the mean rate of 13 per hour. a) what is the probability that…

A: Given:  per hour X ~ Poisson ()Using Poisson distribution:

Q: A. Complete the grouped frequency distribution table with 10 intervals for the 50-item test result…

A: The question is about frequency distribution Given data : No. of intervals = 10

Q: A random variable that has its set of possible values as a collection of isolated points along the…

A: The objective is to identify the keywords for the given definitions.

Q: Identify the variables and state the null and alternative hypotheses of a chi-squared test of…

A: Given information: No. of variables=02Variables=1. Family Income2. Coronavirus outbreak

Q: t*

A: Given Confidence interval for population mean=97% Sample size n=17

Q: A sociologist claims the probability that a person picked at random in Times Square in New York City…

A: Let p be the proportion of people in Times Square who are visiting.  The type I error is defined as…

Q: 3. Determining confidence interval estimate (o is known). The standard deviation of the masses of…

A: Given Sample size n=50, sample mean x̄=24, population standard deviations σ=2.5  90% CI for…

Q: (7-5)! =

A:

Q: Use descriptions of shape, center, and spread to compare the distribution of calories in adult and…

A: The histogram and dot plot are the graphical methods. Which are used to describe the shape, center…

Q: Find the Range, Variance, and Standard Deviation for the given samples. 1. 3, 5, 2, 3,9 2. 12, 11,…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Evaluate the following. (DO NOT USE COMMAS WHEN YOU WRITE YOUR NUBER. FOR EXAMPLE ENTER 3456789 NOT…

A: Given dataEvaluate the following

Q: The managers of a corporation were surveyed to determine the background that leads to a successful…

A:

Q: According to timeanddate.com the mean temperature in NCR during the dry season is 29°C with a…

A: Claim: The mean temperature in NCR has changedif the level of significance is 1%.

Q: a certain state lottery, a lottery ticket costs $3. In terms of the decision to purchase or not to…

A: Probability = Favorable outcomes /total outcomes  Two decision alternatives given, We have to answer…

Q: Question 14 Evaluate the following. (DO NOT USE COMMAS WHEN YOU V FOR EXAMPLE ENTER 3456789 NOT 3,…

A:

Q: III. Directions: Solve the following problems. Show your complete solution. Round off your answer…

A:

Q: Match the 50 60 (a) 50 100 (b) Histogram (a) Histogram (b) Histogram (c) 0 2 (c) a. Box plot (3) b.…

A: From the given information we match the Histogram with box plot.

Q: Let X be a discrete random variable such that: P(X=0)=1-T and P(X= 40) = π 5 and 0 otherwise, where…

A: X is a discrete random variable such that PX=x=π            x=401-π      x=0 Let us consider a…

Q: of thirty students IQ scores have a mean score of 112.5. Is there sufficient evidence to support the…

A:

Q: Consider the PI: 21 < Xnew < 34. Is 41 a plausible value for the next X measurement? Explain.

A: Solution

Q: answer ONLY LETTERS D, E AND F

A: Parametric test are used when the larger population are to be studied through the sample data which…

Q: Calculate the following probabilities: 1. ARINU P(16<X<32), X-Gamma(3,8) 2. P(3<X<4), X~Lognormal(µ…

A: From the given information we find the probability.

Q: The scores of two basketball teams in 7 games are given below  Team A- 18, 68, 60, 54, 58, 55, 63…

A: The scores of two basketball teams in 7 games are given.

Q: What I Can Do (Performance Task ) Cite five (5) research questions used in real life and formulate…

A: Null hypothesis: It may be defined as the assumption or statement about a population. It is based on…

Q: 3. Given the following data about six patients, determine its correlation coefficient. Patient Age…

A: Given: Sample size n = 6 Significance level is not given so, we'll assume 5% significance level.…

Q: The table below shows 2010 census data on Ubekizakhan with the population of women and the number of…

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

Q: The following data are times (in hours) between failures of air conditioning equipment in a…

A:

Q: Calculate the following probabilities: 1. URNU P(16<X<32), X-Gamma(3,8) 2. P(3<X<4), X-Lognormal (u…

A: From the given information we find the probability.

Q: 10. What is the probability of observing less than 3 heads in 4 tosses of a fair coin? A. 0.3125 B.…

A: Given problem Given that     We have to find the probability of observing less than 3 heads in 4…

Q: How many genes are involved in producing scales on these fish? What is going on genetically that…

A: How many genes are involved in producing scales on these fish. What is going on genetically that…

Q: Additional Activities Activity 5. Do It Now! Directions: Read and analyze the given problem. Supply…

A:

Q: 3. Problem 6. Yna likes to play cards. She draws 14 cards from a pack of 52 cards. What is the…

A: 3. The random experiments is follows hypergeometric distribution  N=52 cards k=36 cards n=14  x=4…

Q: In a recent study, a researcher wanted to find out if smoking have negative effects in health. A…

A: Given that  Using excel  regression

Q: The joint distribution function is equal to Fx,y (x, y) = -∞0 ₂√x, y (x,y) dx dy -00

A:

Q: A random sample of 28 size AA batteries for toys yield a mean of 3.27 hours with standard deviation…

A: Here, mean is 3.27 and standard deviation is 0.93. Sample size is 28.

Q: 1. We want to test whether the general average of students in Math is different from 80%. He: He 2.…

A: Given that  1. We want to test whether the general average of students in Math is different from…

Q: hello  am still a bit confudes , so what would be the answer ?

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Q: How did you get the 0.62?

A:

Q: Interpreting and Analysing Data 82 people were surveyed as to how many TVs they had in their homes.…

A: Range is the measure of dispersion. It is used to measure the spread of the data. It is calculated…

Q: The age in years and hourly pay of 8 consultants are given below. Fit a linear regression model and…

A: Given: Age, X Hourly pay, Y 26 400 40 550 30 450 36 500 42 570 25 350 51 700 45…

Q: * In a particular road intersection, it has been observed that (2/3) of vehicles turn to the right…

A: In this specific case, it is given that 10 vehicles are observed, i.e., n=10. Considering each…

Q: In a particular road intersection, it has been observed that (2/3) of vehicles turn to the right…

A: Given : In a particular road intersection ; Observed proportion of vehicles turn to the right…

Q: Suppose that a junior partner in a law firm in the Philippines earns an average of 150,000 pesos per…

A:

Q: Scores on a certain IQ test are known to have a mean of 100. A random sample of 60 students attend a…

A: Given Information: Sample size n=60 Mean μ=100 H0:μ=100  H1:μ&gt;100

Q: In an elementary school, the chess club has 8% of the students, the lego club has 20% of the…

A: Let us consider the event  A denotes the number of students who are in the chess club  B denote the…

Q: The U.S. Senate consists of 100 senators, 2 from each state. A committee consisting of 5 senators is…

A: Given  The senate consists of 100  senators, 2 from each state A committee consists of 5 senators to…