A problem in a test given to small children asks them to match each of three pictures of animals to the word identifying that animal. If a child assigns the three words at random to the three pictures, find the probability distribution for Y , the number of correct matches.

Q: Reading 17 34 57 36 37 14 19 27 39 27 51 34 39 56 35 28 36 37 32 24 37 30 38 33 36 22 27 33 34 20 54…

A: 6) (2.3) Answer:- Given, math data in ascending order,  17, 30, 32, 33, 34, 34, 35, 36, 36, 37, 37,…

Q: A pizza delivery company estimates that on average, 1 in 5 pizzas are delivered late due to traffic…

A: given data P(late delivery) = 15∴ p = 0.2sample size (n) = 100x = no. of late deliveryP(x≥25) = ?

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A: Answer  Given  Confidence interval = 95%  Standard deviation = 5  sample size [n] =9 Mean = [sum of…

Q: The population of Anytown, USA on January 1, 2020 was 85064. The population of Anytown, USA on…

A: Given information: The population on January 1, 2020, and on December 31, 2020, was 85064, and 94387…

Q: Let µx and o be the expectation and variance of a forecast model F for an observations y, and let…

A: The above question investigates the properties of different forecast models F and G, and their…

Q: The article "Probabilistic Risk Assessment of Infrastructure Networks Subjected to Hurricanes"†…

A: Let x = distance of actual landfall from predicted landfall.  Suppose that the random variable x…

Q: The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to…

A: Given:-               The Consumer Reports Restaurant Customer Satisfaction Survey is based upon…

Q: Find the first and third quartile for the data shown X 3.2 10.2 10.9 14.7 15.5 15.7 22.6 25.9 26.1…

A: Obtain the value of the first quartile.   The value of the first quartile is obtained below as…

Q: A student earned grades of C, A, B, and A. Those courses had these corresponding numbers of credit…

A: Given data:   The grading system assigns quality points to letter grades as follows: A = 4, B = 3, C…

Q: The death rate per 100,000 for coronary thrombosis is 422 among nonsmokers and 599 among smokers.…

A:

Q: Problem 1. A discrete random variable X has probability mass function p(x) = ()*+¹ if x = 0, 1, 2,…

A: Solution

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: Suppose the heights of a certain population of people follow a normal distribution with a mean of…

A:

Q: Consider the two regression models specified below, where salary measures an employee's salary,…

A: We have to consider the model containing both the independent variables 'yrrank' and ' admin'. So,…

Q: The life spans of a species of fruit fly have a bell-shaped distribution, with a mean of 31 days and…

A: The information provided in the question are as follows : Mean life span of species,  µ = 31…

Q: One year consumers spent an average of​$22 on a meal at a resturant. Assume that the amount spent on…

A: GivenMean(μ)=22standard deviation(σ)=4

Q: B. Answer what is asked from each number using proper probability notation and units wherever…

A: Let's define the null and alternative hypotheses as follows: Null Hypothesis (H0): The average…

Q: For a confidence level of 91% with a sample size of 24, find the positive critical t value to 3…

A: Given,sample size(n)=24Confidence level=91%

Q: The Standard Normal variable, Z~ N(0,1). Which of these statements is incorrect? A. Pr(z > 1) =…

A: A. The z-score is 1.

Q: Suppose the study conducted showing gender difference in salary of management graduates students…

A: Solution: From the given information, the regression equation is Where, Y= income in thousands D is…

Q: Based on a Comcast survey, there is a 0.8 probability that a randomly selected adult will watch…

A: given data,p(adult watch prime- time TV live)=0.80n=7q=1-p=1-0.8=0.20x= no .of adults watch…

Q: Obtain the CI and PI for Moisture Content 20 and Sweetness 6. Assess what these mean to the company.…

A: Given, Confidence limit and prediction limit. To assess what this means.

Q: Problem 4) For the following random variable X. (0 Fx (x) = { 0.4 0.8 1 x0}. c) Find E[XB].

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

Q: The following estimated regression equation relating sales to inventory investment and advertising…

A: From given data we have : SST = 19,000  SSR = 14,630.

Q: Consider the following data set 1-21 13 12 1-1/1 and the model y = a + a₁ sin(x) In the sense of the…

A: Given Information: x y sin(x) -2 2 -0.9093 1 -1 0.841471 3 1 0.14112   Choice 1: a0=-3.8…

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: A factory produces 1000 widgets per day, and the probability of any individual widget being…

A: given data P(defective) = p = 0.02sample size (n) = 50x = no. of defective widgets in sample N =…

Q: Q14. Choose the statement that best matches the conclusion of your two-tailed paired t test. Your…

A: Given that Choose the statement that best matches the conclusion of your two-tailed paired t test.…

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

A: Suppose p is the population proportion of all Americans over 35 who smoke.

Q: A patient screens positive for Disease Y. The screener has a sensitivity of 60%. The best next step…

A: Solution:-   Given that A patient screens positive for Disease Y. The screener has a sensitivity of…

Q: Calculate the attack rate for those who ate pancakes.

A: Nearly all ill persons reported attending the pancake breakfast. You interview the 157 people who…

Q: Given two dependent random samples with the following results: Population 1 19 26 26 30 48 33 31…

A: Given Information: The data set is, Population 1 Population 2   19 24 26 38 26 40 30 38…

Q: Suppose a grocery store sells a particular type of fruit that is usually ripe 80% of the time. If a…

A:

Q: a. What is the distribution of X? X ~ N( b. What is the median seedless watermelon weight? c. What…

A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS. POST REMAINING PARTS WITH NOTE I NEED THIS…

Q: Given a sample with a mean of 94 and a standard deviation of 17, calculate the following probability…

A: given data normal distributionμ = 94σ = 17P(76<x<81) = ?

Q: The value of a sports franchise has been said to directly related to the amount of revenue that a…

A: Data is given  for value and revenue for teams :  First we will calculate mean :  Value = Y  My =…

Q: Why we should consider only the positive value of the margin of error if we use the formula in…

A: Given,Margin of error(E)=0.02Assume sample proportion(p^)=0.5α=1-0.95=0.05α2=0.025Z0.025=1.96

Q: Suppose the general fund revenue receipts for a particular U.S. state for 2003 (period 1) to 2017…

A: Here we have to construct time series plot. we will use excel  Enter the data in excel -> Insert…

Q: A survey collects demographic, socioeconomic, dietary, and health-related information on an annual…

A: From given data : 36,48,51,53,66,50,50,46,85,37,45,32,38,44,38,62,94,34,29,47

Q: The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks…

A: Suppose the population mean IQ for the Troy Students is µ.

Q: that the average delivery time is 8.33 minutes with a standard deviation of 1.149 minutes. You…

A: Note:- “Since you have posted multiple questions, we will provide the solution only to the first…

Q: Exercise 13. Let X₁,..., Xn~ N(x, o2) i.i.d. and Y1₁,..., Yn~ N(My, 02) i.i.d. with known o². We…

A: Let X1,X2,...,Xn~Nμx,σ2 iid and Y1,Y2,...,Yn~Nμy,σ2 iid with known σ2. Di=Xi-Yi EDi=μx-μy VarDi=2σ2…

Q: If 2 cards are selected from a standard deck of 52 cards without replacement, find these…

A: given data, 2 cards are selected from a standard deck of 52 cards here total outcomes:n=52 cards

Q: You wish to test the following claim (Ha) at a significance level of a = 0.01. Ho: 1 = 12 Ha: 1 <H2…

A: Given data for testing the hypothesis about the mean of two populations. Level of…

Q: Students in Math 221 were asked about the number of classes they are taking this semester. We got…

A: x 2 3 4 5 or more P(x) 0.1 0.15 ?? 0.2   P(x=4) = ?

Q: please solve

A: Solution

Q: The mean IQ for the U.S. is 100 with a standard deviation of 15. A Troy statistics professor thinks…

A: Given :  µ = 100  σ = 15  N = 10  df = 10 - 1 = 9 Mean(M) = (95+100+105+...105)/10 = 105  Null…

Q: ? = 6; ? = 2 P(5 ≤ x ≤ 8)

A: Solution Let X is normal distribution

Q: A researcher compares the effectiveness of two different instructional methods for teaching anatomy.…

A:

Q: The following data give the ages (in years) of all six members of a family. 56 53 30 25 20 12 Let x…

A: We have given that  There are 6 members in a family. Age of 6 members in a family is  56,