Carol is studying the aggresive behavior in children and how often they watch TV shows about helping others.   She calculated that r = -2.9.  Which of the following would be most accurate.     A.the relationship is negative. B. none of the above. C. the relationship is strong and negative. D. the relationship is weak and negative.

Q: 3. If X has at distribution with k degrees of freedom, determine the distribution of 1/X2.

A: Solution

Q: Consider the data in the table below. Y X 3 1 5 4 8. 3 1 7 6. 1. In the space below (or on a…

A:

Q: Solve the below problem. Table 1 contains the probabilities associated with each possible pair of…

A: Solution

Q: You measure 23 randomly selected textbooks' weights, and find they have a mean weight of 37 ounces.…

A:

Q: Solve P60 for the following list of scores resulting from a statistics examination administered to…

A: Arranging Observations in the ascending order, We get…

Q: You are dealt one card from a​ 52-card deck. Find the probability that you are not dealt a card with…

A: Given that   Total number of cards  = 52  Number of cards from 3 to 8 are (3,4,5,6,7,and 8)…

Q: in cold months, when they are often bundled in clothes that restrict their movement, than in warmer…

A: Given that, Let 'X' be the random variable represents the Crawling Age (in weeks) Let 'Y' be the…

Q: An accounting office has 6 incoming telephone lines. The probability distribution of the number of…

A: Given: To find: To find P1<X<3, P0<X<3, and PX≤5 from the given probability…

Q: Using a one-way ANOVA, a researchers reports an F ratio with df = 1, 38. This researcher could have…

A: Given : Using a one-way ANOVA, a researchers reports an F ratio with df = 1, 38.

Q: 3. The time between arrivals of buses at a particular bus stop in a suburban area is exponentially…

A: Given that, the time betwee  arrivals of buses at a particular bus stop in a suburban area is…

Q: 4. Out of 450 randomly selected people in a soccer match, 225 of them were students. Compute the…

A: 450 people are selected randomly; n=450 225 of them were students; x=225

Q: The average monthly rent for an apartment in San Francisco is $3630. A random sample of 30…

A:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.5…

A: Let X be the random variable from normal distribution with mean (μ) = 4.5 and standard deviation (σ)…

Q: You are assisting the county assessor (whose job is to assess the value of properties for property…

A:

Q: In his book (Design and Analysis of Experiments, 5th edition, 2001 John Wiley & Sons), D. C.…

A:

Q: Listed in the data table are amounts of strontium-90 (in millibecquerels, or mBq, per gram of…

A: There are two independent samples which are city #1 and city #2. We have to test whether the mean…

Q: An exclusive raffle is being held where only 7 tickets are available. The raffle is free to enter.…

A:

Q: (b) For a special whole life insurance issued to (45), you are given: • Death benefits are payable…

A: Given  Insurance type : special whole life insurance Benefits : $100,000 in the first 10 years of…

Q: At a = 0.05, can you conclude that the mean costs per ounce are different? Perform a one-way ANOVA…

A: For the given data The critical value is F0 = ?

Q: The scatter plot shows the number of CDs (in millions) that were sold from 199 to 2003, Il the rend…

A: Scatter plot is the first step of conducting linear regression analysis.

Q: Find the range (R) of the given data. 2. Determine the class interval (?) , if there are 6 classes.…

A: here as per Guidelines i have calculated 3 subparts  here use basic of frequency statistic

Q: A sample of psychology students in MSU-IIT was part of a study that examined their happiness level…

A:

Q: 5(a) What shall be the demand if price is set to be Rs.75/ linear regress model. S.No. Price…

A: Given the data Price (Rs/kg) Demand (kg) 62 280 68 310 78 350 89 370 85 360 53 250…

Q: An article in the IEEE Transactions on Components, Hybrids, and Manufacturing Technology (Vol. 15,…

A:

Q: Given that r = 0.62, test the hypothesis that p = 0, using a = 0.01. O Reject Ho. O Do not reject…

A: Given Sample (n) =50 Level of significance=0.01 r=0.62

Q: Question 2 Part 1(a) York university parking services forecasted the number of parking passes issued…

A: I. a From the given information, Month Number of parking passes issued Forecast March 1490 1455…

Q: e. What is the value of the observed test statistic, t, associated with the hypothesis test?

A: Given: Output of the test is given. Df for logged forest plot=12 Df for unlogged forest plot=14

Q: 1. In a sample of 1,000 households in a war-torn country 940 have 0 violent deaths, 50 have 1…

A:

Q: A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing…

A: Control charts are used to measure whether the process is incontrol or out of control. Each control…

Q: 2) Determine an equation that could be used to help predict the cumulative time at which the Dubai…

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

Q: Use an ANOVA with ? = 0.05 to determine whether there are any significant differences among the…

A: Anova is a type of parametric test and it used to measure the mean significant between more than…

Q: A pollster wants to conduct a pre-election poll with a margin of error of 2.5% and a 95% confidence…

A: We have given that,  Margin of error (E) = 2.5% = 0.025 and confidence level = 95%  Then, We will…

Q: question #19 You want to obtain a sample to estimate a population proportion. Based on previous…

A:

Q: a. Is the assumption of normality satisfied for this test? Since the p-values of the Shapiro-Wilk…

A:

Q: Classify the following as a random, systematic, stratified, or cluster sampling. Aresearcher selects…

A: Sampling is the method of selecting samples from the large population.

Q: The pie chart shows the distribution of the opinions of parents on whether a college education is…

A: We have given that Test statistic χ2 = 70.529 α = 0.01 Degree of freedom (df) = n - 1 = 200 - 1  =…

Q: In a study of the relationship between real aggregate consumption and prices in a specific country…

A:

Q: The following table shows the results of an analysis of variance comparing four treatment conditions…

A: The number of treatments k is 4.

Q: 2.6 Solve the below problem: Let Y, and Y2 have joint density function Se-Os+y2), f(y1»Y2) = {{o, Yı…

A:

Q: which op the pollo wing equations may be analyzed using linear legres sion nethad and explain why 1.…

A: The assumption of linear regression analysis states that the parameters involved in the analysis of…

Q: The estimated regression equation to predict sales based on advertising is

A: Use the Excel and Perform the Regression. Followings are the Steps to perform the Regression 1) Open…

Q: The z-score of −2 tells us that x=14 is two standard deviations to the left of the mean. The…

A: Given that z score is -2. x=14 is two standard deviations to the left of the mean. That is, μ-2σ.…

Q: 21. (a) Write down the simple linear regression model with necessary explanation of each term. | (b)…

A: Thanks for posting the question, since there are multiple subparts we have solved first three parts…

Q: 1) Have the samples been collected independently or dependently? Answer the question and provide a…

A: Given:

Q: 4. Let uj denote the mean of population 1 and uz denote the mean of population 2. Which is the…

A:

Q: The probability of getting heads is three times as much as the probability of getting tails, find…

A:

Q: Advertising Cost (X) Annual Sales (Y) 0.9 2 1.1 1.1 6. 1.4 8. 1.5 10 1.9 12

A: .

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total Male…

A:

Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…

A:

Q: (mg/ml) Absorbancy 540nm 0 0.158 1 0.210 2 0.260 3 0.305 4 0.360 5 0.410 6 0.455 7 0.510 8 0.530 9…

A: