25. The mean and variance of a Binomial distribution are 3 and 2 respectively. The probability that the variate takes values equal to 2 is a) 2/m 2/m d) b) 3⁹

Q: PVan

A: Recall that the confidence interval for slope is given by:CI=b1​±t×SE(b1​) Where:b1 = slopeSE(b1) =…

Q: If there is an overall 120 movies, the mean is 109.408 And the standard deviation is 19.606. One of…

A: Approach to solving the question: Probability≈0.9963Sketch of Histogram: A histogram would represent…

Q: vm83 3 If a seed is planted, it has a 85% chance of growing into a healthy plant.If 7 seeds are…

A: The binomial distribution probability is:P(X=x)=nCx​px(q)n−xwhere ::: x represents the total number…

Q: None

A: Step 1: Step 2: Step 3: Step 4:

Q: A sociologist uses participants' amount of time on Twitter as a predictor of their GPA. Osimple…

A: The objective of the question is to identify the appropriate statistical test to use when predicting…

Q: 35. The average blood pressure for a group of 10 patients was 77.0 mmHg. The average blood after…

A: Step 1:Given information  Before diet mean blood pressure xB​ˉ​=77  After diet mean blood pressure…

Q: please give me answer in relatable

A: a) **Expressing \( X \) as an ARMA model:**  - The given GARCH(1,1) model is \( X_t = \epsilon_t…

Q: None

A: Finding z-critical using Excel function: Reject the null hypothesis if the calculated value of the…

Q: The individual residual scores from a sample of participants regarding the difference between the…

A: Step 1: Identify the formula for the standard error of estimate (se)se = √∑(Y - Ŷ)2 / (n -…

Q: The mean score on a set of 17 tests is 82. Suppose two more students take the test and score 66 and…

A: The objective of this question is to find the new mean score after two more students take the test…

Q: D Question 10 You would like to see whether people living in Montclair sleep more than 8 hours on…

A: Given that, We have to test the hypothesis that whether people living in Montclair sleep more than 8…

Q: A somewhat outdated study indicates that the mean number of hours worked per week by software…

A: The objective of this question is to understand the concept of null and alternative hypothesis, and…

Q: You may need to use the appropriate appendix table or technology to answer this question. In a…

A: To solve this problem using the sign test, we need to compare the number of adults who feel their…

Q: Number of giraffes Sample mean Sample standard deviation Take Sample 16 5.588 1.733 Enter the values…

A: Step 1: Identify the sample sizesample size = number of giraffessample size = 16  Step 2: Identify…

Q: What sample size is needed to give a margin of error within ±3.5% in estimating a population…

A: Step 1:Given data: confidence level: 99%Margin of error E = 3.5% =0.035 previous estimate p^​=0.8…

Q: A simple random sample of 146 adult males from a normally distributed population results in a…

A: Here n = 146 and Sample SD (s) = 10.7 Test statistic is given as, χ2=σ2(n−1)∗s2​=102145∗10.72​ This…

Q: 9.2 & 9.3 Homework i i ! Saved You received no credit for this question in the previous attempt.…

A: Mean of Plant A: 47.93 MPaMean of Plant C: 54.67 MPaStandard Error of the Difference: 2.63…

Q: 8. A random variable X has the following probability distribution: 5 6 7 3k k² 2k² 7k²+k X 0 1 2 34…

A: Step 1:(i)We know that total probability should be…

Q: Question 15 1 Point The runtime of a certain brand of batteries is normally distributed with a…

A: Step 1: State the given: sample mean 1, x̄1 = 27sample mean 2, x̄2 = 33population mean, μ =…

Q: please answer in text form and in proper format answer with must explanation , calculation for each…

A: We are given that the test statistics was such that we rejected the null hypothesis at 0.05 level of…

Q: Find the value of x such that the data set has a mean of 120.   101​, 123​, 103​, 112​, 110​, x

A: The objective of this question is to find the value of 'x' that would make the mean (average) of the…

Q: Suppose we want to choose 6 objects, without replacement, from 10 distinct objects. (If necessary,…

A: The objective of this question is to find out the number of ways to choose 6 objects from 10…

Q: None

A: Detailed Explanation of Confidence Intervals:Here's a breakdown of how to calculate confidence…

Q: A multiple-choice test consists of 9 questions. Each question has answer choices of a, b, c, and d,…

A: The objective of this question is to find the probability that a student who is guessing answers on…

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: a)1)Steps in Excel to get the regression line y = mx +bStep 1:Enter the data in Excel sheetStep…

Q: In a sample of 80 light bulbs, the mean lifetime was 1,217 hours with a standard deviation of 52.0…

A: Given information :Mean(xˉ)=1217σ=52n=80Step 2:The margin of error calculated by the…

Q: Interpret this 2 way anova of lesion freezing behavior of rats that received stereotaxic surgery to…

A: Based on the provided 2-way ANOVA results comparing lesioned freezing behavior in rats, here is the…

Q: Answer# 7 based on answers from 1-6

A: Detailed explanation:This simply means the question of the comparison of monthly stock returns for…

Q: Currently, I am studying for the ANOVA test. When we reject Ho, we have to perform the Tukey-Kramer…

A: Approach to solving the question:Both formulas you mentioned are used in the context of the…

Q: Please choose the best statistical test to assess the study. A researcher is studying the…

A: Option a:Chi square contingency table test: Correct: This is the correct option for analyzing the…

Q: Do people feel hungrier after sampling a healthy food? The authors of a consumer research paper…

A: Based on the given situation, the appropriate hypothesis can be stated as:H0: All three means are…

Q: Hanny

A: Approach to solving the question: - Detailed explanation: Given above Examples: - Key references: -

Q: Sample standard Number of giraffes Sample mean deviation Take Sample Enter the values of the sample…

A: The objective of this question is to calculate the 95% confidence interval for the population mean…

Q: III O Probability Identifying independent events given descriptions of experiments For each…

A: The objective of the question is to determine whether the events A and B in each of the given…

Q: 5/1/24, 11:52 PM A L Solve the problem. 17) The accompanying table shows the probability…

A: xP(x)x*P(x)x2*P(x)10.10.10.120.220.440.8830.160.481.4440.10.41.650.170.854.2560.251.59…

Q: What is the difference between discrete and continuous probability distributions? We will solve…

A: The difference between discrete and continuous probability distributions lies in the type of…

Q: Please answer full

A: ANS)All works have been done using excel and not R.   Descriptive StatisticsFlipper Body…

Q: Suppose it is known that in a certain population, 10% of the people are color-blind.  If a random…

A: OUTPUT :

Q: The null and alternate hypotheses are: H0: μ1 ≤ μ2H1: μ1 > μ2 A random sample of 25 items from…

A: a. Degrees of Freedom for Unequal Variance Test (Welch's t-test): The degrees of freedom (df) for a…

Q: Please explain throughly. Question 1, A, B, C

A: We conduct the hypothesis test as follows:Step 1: Formulate the hypotheses. Ho: REM sleep quality is…

Q: K Sub A professor is teaching two sections of a Calculus course, section A and section B. Assume…

A: Given:Section A:μ = mean = 76σ = standard deviation =  5 Section B:μ = mean = 75σ = standard…

Q: Suppose the following table was generated from a sample of 20 CEOs relating annual salary to years…

A: The objective of this question is to determine the estimated difference in annual salary between a…

Q: Assume the duration of human pregnancies can be described by a normal model with mean 263 days and…

A: The objective of this question is to apply the Central Limit Theorem to find the mean and standard…

Q: . Neil, a third-grader, asked 10 of  his classmates whether they prefer to wear shoes with laces or…

A: Neil's Sample Size: Neil asked 10 of his classmates. This is a relatively small sample size.Sample…

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: Approach to solving the question:1. Understand the demand function and elasticity formula.2.…

Q: For the following, indicate what type of analysis (test) you would perform and what alternative…

A: The most appropriate analysis for this scenario is:Mann-Whitney U test (one-sided)Here's why this…

Q: Suppose the following table was generated from the sample data of 20 campuses relating the total…

A: The objective of the question is to find the intercept value for private colleges or universities in…

Q: compute the test value ( z=) make a decision find the 95 and 90% confidence interval for the…

A: Step 1: H0: p1​=p2​  Ha: p1​=p2​ Hypothesis testing for two sample proportions alpha = 0.01:   Step…

Q: If appropriate, determine the proper conclusion at the 0.05 significance level. Choose the correct…

A: To properly explain the answer OA, let's break down the components involved: the null hypothesis…

Q: handwritten answer with step by step explanation please

A: Step 1:Step 2: