Use the confidence interval to find the estimated margin of error. Then find the sample mean.   A biologist reports a confidence interval of (3.7,4.5) when estimating the mean height​ (in centimeters) of a sample of seedlings.   Margin of error?  Sample of Mean?

Q: THE ASQ-3 is a standardized screeing tool. Scores on each domian of the screening tool, communicatio...

A: We have given that  Sample size n = 25 Population mean μ =48.7 Population standard deviation =9.2  

Q: Q. 6. Calculate Karal Pearsons co-effícient of correlation from the following given data. (i) Sum of...

A: Givensum of deviations of x (∑x)=5sum of deviation of y(∑y)=4sum of square of deviation of x(∑x2)=40...

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Q: Q. 2. Calculate trend values from the following data : Years : 1986 1987 1988 1989 1990 Sales in tho...

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Q: Using correct notation, answer the following.: of a) What proportion of respondents have a college d...

A: Given that   Note: According to bartleby experts question answers guidelines an expert can solve onl...

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A: For the give data using Anova single factor carry out the hypotheses test at alpha =0.05 L.O.S

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A: Given that  P(smoke)=10.4%=0.104 P(Males/Smoke)=19.8%=0.198

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A: We have given that  Sample size n =254  Favorable cases x =160 Sample proportion p^=x/n  =160/254 = ...

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A: * ANSWER :-  Based on given information the answer is provided below.  

Q: c&d] Instruction: Solve the following problem: Records show that the performance of male college st...

A: We have given that  Sample size n1=44 , n2=36 Sample mean xbar1 =93.45 , xbar2 =87.42 s1= 4.35   , s...

Q: Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval...

A: According to the given information, we have Sample size, n = 323 Probability, p = 26% = 0.26 Confide...

Q: Out of 200 people sampled, 178 had kids. Based on this, construct a 95% confidence interval for the ...

A: We have given that,  Favorable cases (X) = 178 and sample size (n) = 200  Then,  We will find the 95...

Q: What is z0 if P(Z < z0) = 16.85%? %3D

A: We use standard normal z distribution table to find the required solution. 

Q: Visualizing Statistical Precision Each graph below shows a scatter plot of an outcome (y or w) over...

A: Given:

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Q: Q8. This is a continuation of Question 7. Late 0.6 Rain Not Late 0.7 0.7 No Rair Late What is the Pr...

A: Given that P (R') =0.7 , P ( L/R ) = 0.6 , P ( L'/R') = 0.7 P (L ) = ? what is the probability that ...

Q: Consider the boxplot below. 16 34 45 59 71 10 20 30 40 data 50 60 70 80 a. What quarter has the larg...

A: Given :  Minimum = 16 Q1 = 34 Q2 = 45 Q3 = 59  Maximum = 71

Q: Calculate Price Index for 1995 and 1996 using 1990 as base year from the following data : Соmmodity ...

A: From the provided information, Commodity Prices ($ per unit)   1990 (P0) 1995 (P1) 1...

Q: Answer D E and F please! Show work!

A: Given that  n=13 , p=19%=0.19 , q=1-p=1-0.19=0.81 X~Binomial(n=13,p=0.19) Probability mass function ...

Q: Q. 8. Calculate co-efficient of correlation from the followine results: N= 5 Ex = 80 Ey = 130 E(x-5)...

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Q: Example 19-36. If U, = a + bx+cx², prove that 3 U, dx = 2U2 + 12 (Uo- 2U2 + U4) 1 and hence find an ...

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Q: Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence interv...

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Q: "Example 19-14. Find f(x), given that f(0) = – 3, f(1) = 6, f(2) = 8, f(3) = 12. State your %3D assu...

A:                                                                                                     ...

Q: Consider a normal distribution with a mean value of 100 and a standard deviation of 5. Find the valu...

A: Given that, μ=100,σ=5 (a) Consider that the area from the mean to the z-score is 17% and the z-score...

Q: take the following data and calculate the variance and standard deviation by hand 10 12 20 20 25

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Q: Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval...

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Q: Patients with two kinds of diagnoses were randomly assigned to one of three types of therapy and the...

A: For the given data using Anova: Two-Factor With Replication Complete the Anova table

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Q: find the square of the radical. negative root 19

A: The radical negative root of -19 is we need to took the square root of -19 so there will be - 4.3588

Q: he probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is ran...

A: Given,n=50p=0.05A random variable X~Binomial(n=50 . p=0.05)P(X=x)=50x0.05x1-0.0550-x   ;  x=0,1,2,.....

Q: Number of Tails (X) 1 on P(X) 0.125 0.375 0.375 О.125 4. Find P (X 1) A. 0.125 B. 0.5 С. О.625 D. 0....

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Q: A random sample of boots worn by 36 soldiers in a desert region showed an average life of 1.08 years...

A: Given that he following information has been provided: Hypothesized Population Mean (μ)(\mu) 1.28...

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A: Rejecting H0 when H0 is true is referred to as a Type I error. (a). A type I error occurs when a res...

Q: ta) Find the mode of the following distribution: 7. 4. 3. 5. 6. 3. 3. 2, 4, 3. 4, 3, 3. 4. 4, 2. 3 (...

A: Given data is 7,4,3,5,6,3,3,2,4,3,4,3,3,4,4,2,3 We have  to find Mode of the given data set : The va...

Q: Q7. TheRandom Variable, X~ N(20,16). Which of these statements is incorrect? A. Themean, µ = 20 & o²...

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Q: 1 17 f(x) .05 .16 .17 .24 .38 Consider this probability distribution. What is P(X < 5) ?

A: given that ; X takes values 1,2,5,7,8 and  their Corespoding probabilities are given  f(x) = P( X = ...

Q: 6) Show that, if X and Y are independent random variables, such that E|X| < co ,and B is an arbitrar...

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Q: Which of the following is true? The sum of the probabilities of collectively exhaustive events must...

A: The probability is a chance, it can occur any outcome of the random experiment. The probability of a...

Q: Find the critical value zc necessary to form a confidence interval at the level of confidence shown ...

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Q: Q9. The diagram is the distribution of the Standard Normal variate, Z. wwww w 0.5 0.4 0.3 .025 .025 ...

A: We have given that.   X~N( μ , ?^2 )   μ =0 , ? =1   Z-score =( x - μ )/?

Q: A bank has a policy that the proportion of loans made to people with more than $50,000 in debt shoul...

A: The hypotheses for the test are given below. Null hypothesis: H0: p ≤ 0.15 Alternative hypothesis: H...

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Q: mitnenical variable. THE NEXT THREE QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION We have sample ...

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Q: # 44: The Higher Education Research Institute at UCLA collected data from 203,967 incoming first-tim...

A: Given that  n=8 , p=72.5%=0.725 , q=1-p=1-0.725=0.275 X~Binomial(n=8,p=0.725) X=Freshmen replie yes ...

Q: A researcher is interested in finding a 95% confidence interval for the mean number minutes students...

A: From the provided information, Sample size (n) = 101 Mean (x̄) = 41.8 Population standard deviation ...

Q: Construct the confidence interval for the population mean μ.   c=0.90​, x=4.2​, σ=0.8​, and n=57   A...

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Q: Which of the following shock in the time series show the MA process more closely – state the reason ...

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Q: A study of B.A. (Hons.) Economics examination results of 1000 students in 1990 gave the mean grade a...

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Q: Explain the importance of recording vital statistics for healthcare policy planning

A: Vital Statistics :The statistics relating to births, deaths, marriages, health, and disease. Vital s...