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Q: interaction ratings was Ŷ=-.543X+16.987 The regression equation for the prediction of children's…

A: Given Regression equation isy^=-0.543(X)+16.987

Q: iv. How many students have got marks more than 20? v. Find median marks and discuss the class…

A: iv) 30 V) M=30+20-1812*10=30+1.67=31.67

Q: Match the probabilities with the commands. In the answers, the first command stated is for EXCEL and…

A: The question is about to provide excel and TI calculator command

Q: Assume that when adults with smartphones are randomly​ selected, 39%use them in meetings or classes.…

A: Let us assume X= the number of persons who uses smartphones in meetings or classes n= number of…

Q: True/False: Answer the questions below by selecting "true" or "false". If the answer is false in the…

A: We know that, Discrete random variable: The random variable which gives the values  countable and…

Q: a One Sample t-Test, the test variable's mean is compared against a ""test value"", which is a known…

A: T test : A stastical test for comprasion of means between two groups. Now if we will use t test for…

Q: Calculate the infant mortality rate (per 1000): [

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY PLZ REPOST FOR REMAINING Here given,…

Q: Complete the FD table below and then: find 60th percentile: n=30 30₂2 = 15 5-7 10 (15.) Classes…

A:

Q: The average math SAT score is 516 with a standard deviation of 117. A particular high school claims…

A: Introduction: Denote μ as the true mean math SAT score of the students in the given high school.

Q: Twenty beluga whales were randomly chosen from the MacKenzie Delta. For each whale, liver selenium…

A: Regression line are used to predict the future value over the another. It is calculated to predict…

Q: 1. This scatterplot shows the total number of COVID cases in the United Kingdom (UK) in March 2020…

A: Always, graph of exponential function has either exponential growth form or exponential decay form.…

Q: The relationship between the independent variable (IV) and the dependent variable (DV) is likely to…

A: Given. As a part of end of semester review of the marks obtained by third year students in business…

Q: Order data for the production of a factory are arranged in the form of a frequency table as follows:…

A: Given frequency distribution table is Order interval production result No. of subscribers…

Q: Class f Find: (1) Midpoints (5) Relative frequency 16 - 20 1 21 - 25 9 26 - 30 36 - 40 21 24 (3)…

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

Q: Why can we not know the true score for a test? Explain the formula for understanding observed…

A: A true score is the individual's score on a measure of there was no mistake, which is the primary…

Q: What is the percentage of patients who recovered from diabetes in 2004? (b) What is the 90%, 95%…

A: HERE GIVEN ,  A study published in JAMA in 2004 examined past results of other studies on bariatric…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Here given situation is of normal distribution, which is continuous distribution. Let X : IQ of…

Q: If ​(-5.6, 1.8​) is an interval on the number​ line, find the value that is in the middle of the…

A: The interval on the number line is (-5.6,1.8)

Q: Type I error is when you end up rejecting the null hypothesis as a result of the statistical…

A: Here we have to fill blank space of a given sentence "Type I error is when you end up rejecting the…

Q: When we assess exposure before outcome, which of the following measures of association should be…

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

Q: viii. Calculate SD ix. Calculate Variance x. Calculate MSD about 30.

A: Measure of dispersion are used to determine the spread of the data set. It has some measures like…

Q: Part 1.1.  If the coefficient of determination (R2) value is 0.99, it means the 99% of ____ of the…

A: 1.1 If the coefficient of determination (R2) value is 0.99, it means the 99% of positive of the…

Q: Ten sites of Taal were analyzed in terms of hydrogen sulfide concentration. The concentration was…

A: There are three groups for the reading of hydrogen sulfide concentration. 1: Concentration before…

Q: Your econ professor is considering adding a side hustle of being a yoga instructor on top of…

A: Given information: μEcon=$75,000μYoga=$15,000r=0.85

Q: 26. The diagram shows the number of paths from Queton to Toytown through Rowton or Seton. Rowton…

A: From the above diagram, it is clear that in order to go "Queton" to "Toytown", one can go via…

Q: A sample of 16 students was taken from LIU university. These students spent an average of $170 on…

A: Givensample size(n)=16Mean(x)=170standard deviation(s)=25.50confidence interval = 98%

Q: Researchers are trying to determine if there is a difference in the average lifespan of two species…

A: Given:Sample size (n1)=105Sample mean(x¯1)=51Sample standard deviation (s1)=7Sample size…

Q: Find the population variance and standard deviation. 6, 12, 20, 24, 28

A: Given data set is6,12,20,24,28

Q: Find the equation of the regression line using the method of least squares write your solution…

A: The objective is to find the equation of the regression line using the method of least squares:

Q: In a plot of bivariate data, several outliers appear outside the general pattern of data points and…

A: Correlation a measure which indicates the “go-togetherness” of two data sets. It can be denoted as…

Q: uppose you pay $0.30 to roll a fair 8-sided die with the understanding that you will get $0.70 back…

A: Given data, 8-sided die is rolled P(1,2,3,4,5)=58P(6,7,8,)=38If we roll 1,2,3,4,5 we get $0.70If we…

Q: Conduct the hypothesis test for H0: µ = 10 versus Ha: µ =/10 (i.e µ is not equal to 10) where x bar…

A: H0: µ = 10 versus Ha: µ ≠ 10  x̄ = 9.6 and s = 3, n = 50

Q: Q: The pie chart below shows the percentage of students in each college at a university. Science 35%…

A: Pictograph: A pictograph is a diagram in graph theory that shows relevant information by using…

Q: 6. Claim: P₁ > P₂; a = 0.01 Sample statistics: x₁=6,₁ 20 and x₂ = 4,n₂ = 30

A: Given: n1 = 20 X1 = 6 n2 = 30 X4 = 4 Formula Used: Test-statistic Z = p1^ - p2^P(1-P)1n1+1n2

Q: As part of a pilot study aimed at determining the daily consumption of water (in litres) across…

A:

Q: When X is a binomial random variable, the mean of the probability distribution = np. A jury has…

A: Answer : - Given, When X is a binomial random variable, the mean of the probability distribution =…

Q: question 1: Explain the Discrete and Continuous Markov Chains. Discuss the models for the two chains…

A: Discrete-time Markov chain :  A Discrete-Time Markov Chain can be used to describe the behavior of a…

Q: Q: Fill the blanks with one of (nominal, ordinal, interval, or ratio): 1)Education Level (weak,…

A: 1)Interval variableInterval variable is ordinal variable withadditional property that the magnitudes…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Assume that z is a random variable, which defines the bone density test score.

Q: derson 595 570 Crenshaw 600 575 4 Anderson 720 650 Crenshaw 730 670 5 Anderson 570 620 Crenshaw 570…

A: Given as, Student 4th Grade Teacher 4th Grade Math 1 Anderson 580 2 Anderson 520 3…

Q: 5. The quality control inspector for a computer company either accepts or rejects shipments of…

A: Given: P(Good) =0.95 P(Inferior) = 0.05 P(Accepted and Good) = 0.98 P(Rejected and Good) = 0.02…

Q: When only two treatments are involved, ANOVA and the Student’s t-test (Chapter 11) result in the…

A: Anova is the measure that used to determine the mean significance between more than three groups. It…

Q: Company A claims that the variance of the life of its appliances is less than the variance of the…

A: Variance of the life of appliances of company A is 2.2 with sample of 25; n1=25; s12=2.2 Variance of…

Q: 131 - 144 6 y e missing frequency e true limits of the c

A: height frequency 131-144 6 145-158 ? 159-172 51 173-186 38 187-200 15 total  135

Q: etx be a random variable representing dividend yield of bank stocks. We may assume that x has a…

A: The following information has been provided: μ=5.0                n=10x¯=5.38              σ=1.9

Q: A sample sequence of 42 products is selected (in order) from an assembly line. Each product is…

A: Given: Number of acceptable products n1 = 35 Number of defective products n2 = 7 Number of runs R =…

Q: Over a period of ten years, the number of times a certain individual has visited New York each year…

A:

Q: The following data give the speeds (in miles per hour) of eight cars that were stopped om I-95 for…

A:

Q: 1. Using the stratified sampling technique, compute for the sample size at a 5% margin of error for…

A:

Q: Joshua received a $30,100 loan from a bank that was charging interest at 4.50% compounded…

A: Loan received from a bank P0 = $30100 Semi-annual interest rate r = 4.50% Number of compounding…