Which of the following is true of research methods? O Closed-ended questions are a good fit for exploratory research O Questionnnaires are created to collect primary data. O Descriptive research always use primary data. O At least one scale question is used in every exploratory research.

Q: In a gambling game, Stephen is paid 5 pesos if he gets all heads or all tails when 3 coins are tosse...

A: For the given data Find the expected profit

Q: An insurance company keeps arecord of insurance plans sold per day for the past 150 days, as summari...

A:

Q: Ms. Cruz wants to know the average weekly allowance of the grade 10 students. She randomly asked 50 ...

A: Parameter :  The parameter is a single value and it describe about the whole population.            ...

Q: You are playing a card came, and the probability that you will win a game is p 0.39. %3D If you play...

A: Given,p=0.39n=833

Q: A student is about to take a true-false, 5-question quiz, with absolutely no knowledge of the subjec...

A: The probability of obtaining a head or a tail on flipping a coin is exactly the same that is 0.5 whi...

Q: c. The probability that the person will wait more than 9 minutes is d. Suppose that the person has a...

A: A bus comes by every 15 minutes. The times from when a person arives at the busstop until the bus ar...

Q: Compute the geometric mean from the following data : 10, 110, 120, 50, 80, 60, 52, 37.

A:

Q: Energy consumption: The following table presents the average annual energy expenditures (In dollars)...

A: Size(X) :- 500, 600, 700, 800, 900, 1000, 1100, 1200 Energy expenditure (Y) :- 1131, 1242, 1293, 135...

Q: Statistics grades: In a statistics class of 39 students, there were 11 men and 28 women. Three of th...

A:

Q: 4. If R(T) is the autocorrelation function of a stationary process {X(t)} with no periodic component...

A:

Q: The output below was generated from the analysis of a balanced 2x3 factorial experiment (Ais qualita...

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

Q: In an experiment to determine which of the three different missile systems is preferable, the propel...

A: For the given data we need to test the propellet burning rates are same for the three missile system...

Q: Question 13 Write the number that corresponds to the correct answer. What is the treatment in this t...

A: Since, for the given information,  it needs to know if at the 5% level of significance, do these dat...

Q: An incomplete frequency distribution is given as follows : Variable Frequency Variable Frequency 10-...

A: Given that:  We have to find the missing frequencies :   

Q: Use the below dot plot to answer questions 1-4. In game one of a high school basketball playoff, the...

A: Given The dot plot is as follows:

Q: A particular airline has determined that an average of 18.5 suitcases (#= 18.5) get lost each week b...

A: The probability is 24.4% .   Explanation:-    

Q: Question 7 We have learned three t tests, including all of the following except: independent-samples...

A: There are three major type of t tests, i. Independent samples t test: Independent sample t test is u...

Q: Suppose a lift skill distribution exist with a mean of 150 in standard deviation of 18. Consider a r...

A:

Q: Two fair dice are rolled and the outcome is recorded. n(S)= Events: (a) sum of 6 n(a) = P(a)= (decim...

A:

Q: irection: True or False and justify why. 1. Suppose that these students are asked to rate their sat...

A:

Q: Amanda loves 80's music and 22% of the songs on her Spotify library are from the 80's. Suppose that ...

A: Given - Sample Size = n = 50              Sample proportion = p = 22% = 0.22            Mean =    μp...

Q: The following data represent the calories and sugar, in grams, of various breakfast cereals. a. Comp...

A: Solution: Let x= Calories  and  y= Sugar x y (x-x) (x-x)2 (y-y) (y-y)2 (x-x)(y-y) 250 9.3 -118...

Q: Compute each of the following: a. b. C. d. 0. (Simplify your answer.) a. b. (Simplify your answer.) ...

A: In the given problem combination values should be calculated.

Q: A) What formula do you need to use for this calculation B) what is the mean of the sample? c. What ...

A: GivenMean(x)=142standard deviation(σ)=8sample size(n)=400

Q: Question 3 The Bank of Canada is interested in studying the relationship between mortgage rates and...

A: The regression analysis is used to determine the relationship between two variables (dependent and i...

Q: A Daseball analyst would like to study various team statistics for a recent season to determine whic...

A: We need to use the concept of least squares to find regression coefficients , equation and its inter...

Q: For numbers 9-14. Suppose you have 3 coins. 9. What are the sample spaces for the experiment above? ...

A: The sample space of an experiment is a set which contains all possible outcomes of that experiment. ...

Q: The table below shows the probability distribution for X, where X represents the number of intercept...

A:

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the the probabi...

A:

Q: Predict the salary for a graduate with 5 years of expe

A: Given information: Intercept=56.0786946 Experience coefficient=2.36826108 Regression Equation: Salar...

Q: Question ? When statisticians describe pooling the variances, they mean: taking the average of the t...

A: In this question it is basically asked that what actually pooled variance is:

Q: Find the median, lower and upper quartiles from the following tabie : Marks No. of students Below 10...

A:

Q: Part 1 of 2 (a) The standard normal curve is graphed below. Shade the region under the standard norm...

A:

Q: Predict the price when the prime interest rate is 7%. Round the answer to at least four decimal plac...

A: In this case, the independent variable is the prime interest rate in percent (x) and the dependent v...

Q: Job satisfaction: In a poll, 422 out of 1611 people said that their main satisfaction in life comes ...

A:

Q: If X(t) with X (0) = 0 and µ = 0 is a Wiener process, show that Y(t) = oX %3D is also a Wiener proce...

A:

Q: Assume that a fair die is rolled. The sample space is (1, 2, 3, 4, 5, 6), and all the outcomes are e...

A: if a die is rolled than the possible outcomes areS=1,2,3,4,5,6

Q: *For numbers 11 -15, use the given information below. The probabilities of a manufacturing company t...

A: Given that : X represents no. Of defective flashlights P(x) shows the probability of x.  Now by usin...

Q: 2. R(T) is maximum at t= () i.e., \R(t)l < R(0)

A:

Q: With the growth of internet service providers, a researcher decides to examine whether there is a co...

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

Q: If the area to the left of z is 33%, find the corresponding standard score. А -0.95 0.95 С 0.44 -0.4...

A: Given : Let Z be a standard normal variable Z~N(0,1) The area to the left of Z is 33%  i.e P(Z&lt;k)...

Q: Given a RV 2 with density f(@) and another RV ø uniformly distributed in (- T, T) and independent of...

A:

Q: According to the American time you survey Americans age 15 and over spend on average of 2.65 hours e...

A: GivenMean(μ)=2.65standard deviation(σ)=0.97

Q: In an international mathematics competition, the mean score obtained was 54.0 and the standard devia...

A: Given The data is as follows: Pop mean, μ=54.0Pop sd, σ=9.0Sample size, n=40Sample mean, x¯=57.0

Q: How many ways can you arrange the letter from the words TEACHER

A: In word TEACHER, the number of letters are 7 Number of Es = 2 Number of A = 1 Number of T = 1 Number...

Q: Emmanuel observed that the probability distribution of X, where X is the number of students who fall...

A:

Q: Find the Quartile Deviation and its Coefficient from the following data, relating to the weekly wage...

A:

Q: If none of the data points for a multiple regression model with two independent variables were on th...

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

Q: In multiple regression analysis involving 10 independent variables and 100 observations, the critica...

A: Given that, n =100 observations k = 10  The degree of freedom is, df=n-k-1   =100-10-1   =100-11   =...

Q: Certain cross of the pea gave 5321 yellow and 1804 green seeds. The expectation is 25% of green seed...

A: