Assume the random variable X is normally distributed, with mean μ = 49 and standard deviation o = 6. Find the 12th percentile. The 12th percentile is. (Round to two decimal places as needed.)

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A: Given: Population mean, μ=39.9 Sample size, n=45 Sample mean, x=33.6 Standard deviation, σ=17.3 We…

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Q: is the following a probability model? what do we call the outcome green? 1) is the table pictured…

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Q: n score on final exam for this sample of students was 83 with a standard deviation of 10.4. An…

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Q: a.True or False:               There will be more dispersion in the sampling distribution of the…

A: Given information- We have given the statement- There will be more dispersion in the sampling…

Q: Let our function be 1 f (x; 0) = = = elx-01, -∞ < 0 < ∞o Find 0 using the method of moments for…

A: Consider, the function of X is, fx,θ=12ex-θ, -∞&lt;θ&lt;∞, -∞&lt;X&lt;∞ Consider, the mean for the…

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A: Introduction A box and whisker plot is a graphical representation which shows the variation in the…

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A: Given that We have to find b..Chi square test statistic c..p value

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Q: After selecting a random sample of 28 people from a very large population, they want to determine if…

A: From the provided information, Sample size (n) = 28 Sample mean (x̄) = 26 Sample standard deviation…

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A: The sample size is 15 and probability of adult Americans believe that the overall state of moral…

Q: Micah is interested in testing whether college students' levels of gratitude change over the course…

A: Given: Micah is interested in testing whether college students' levels of gratitude change over the…

Q: Let x be a random variable that represents the commute time of teachers in a large rural area. If x…

A: The given mean is 64 and standard deviation is 12.2.

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A: Given information: Wages LOS 48.3355 94 49.0279 48 40.8817 102 36.5854 20 46.7596 60…

Q: On a standardized exam, the scores are normally distributed with a mean of 140 and a standard…

A: It is given that Mean = 140, SD = 20 Person's score, X = 140

Q: Find the z value such that 20% of the standard nornal curve area lies to the right of z.    A.…

A: The given probability is 0.20.

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A: The sample size for population 1 is 48, sample mean is 21.5 and sample standard deviation is 2.5.…

Q: A design in which at least two nonequivalent groups are measured after the treatment is a(n) _____…

A: ​A design in which at least two nonequivalent groups are measured after the treatment is a(n)…

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Q: The table below lists the frequency of wins for different post positions in a horse race. A post…

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Q: recent study surveyed adults on their views about the Covid-19 vaccine.  In a random sample of 850…

A: given data, n=850x=430P^=xn  =430850 =0.5059CI=0.90α=1-0.90=0.10

Q: current variance is less than 5.1. (a) What is the level of significance? State the null and…

A: It is given that  Sample size n = 51 Sample variance s2 = 3.1 Level of significance = 5% Note :…

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Q: Suppose the following data produced a Chi-Square statistic of 8.14. What is the p-value? Group 1…

A: Given that If Chi square statistic=8.14    We have to find p value:

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Q: Listed below are the number of cricket chirps in 1 min and the corresponding temperatures in degrees…

A: The table shows the number of cricket chirps in 1 min and the corresponding temperatures in degrees…

Q: 3. You want to determine the effectiveness of a novel cancer therapy, RS7, in treating lung cancer.…

A: Solution: Given information: n1=5 Sample size of first groupn2=5 Sample size of second groupα=0.05…

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A: Given data: Sample size = 9 To find: 1.Mean 2. Median 3.Midrange 4.Mode

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A: Given Information: With a P-value of 0.032, the difference in attitudes and behavior between male…

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A: It is given that  Sample size n = 6 Sample SD s = 27 Level of significance = 1% Note : According to…

Q: A distribution of values is normal with a mean of 185.8 and a standard deviation of 24.3. Find P8,…

A: Given information- Population mean, µ = 185.8 Population standard deviation, σ = 24.3 Let, X be the…

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A: Given Enter the given table in to the excel sheet

Q: The following data on price ($) and the overall score for 6 stereo headphones that were tested by…

A: Given: The data on price and the overall score for 6 stereo headphones that were tested by consumer…

Q: a popu people, during the year ending country December 31, 2021. These included 45,000 deaths from…

A: The question is about demography Given : No. of deaths due to "CO." = 45000 Total no. of population…

Q: 1)Calculate the Sum of Squares total (SStot) 2) Calculate the Sum of Squares Between Groups (SSBG)…

A: The data shows the absences for 9th grade, 10th grade, 11th grade, or 12th grade among students with…

Q: Are phone calls equally likely to occur any day of the week? The day of the week for each of 623…

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Q: doctor wants to evaluate the effectiveness of a blood pressure medication. She measures blood…

A: From the given output, The t value is 3.469. df is 7 Corresponding p(Sig 2 tailed) value is 0.10

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Q: Which of the following shows the correct APA style for reporting r?   Question 36 options:…

A: It is needed to explain the correct APA style of correlation test.

Q: 1. The national average SAT score (for verbal and math) is 1028. Assume a normal distribution with…

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

Q: The prices of a random sample of homes in four areas of a certain city (Areas A, B, C and D) were…

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Q: Question 2 Determine the conditional probability distribution of Y given that X = 1. Where the joint…

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Q: A six-sided die is rolled 120 times. Fill in the expected frequency column. Then, conduct a…

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Q: A job listing received 6 qualified candidates for the position. Of the 6 qualified candidates, 3…

A: Given,no.of female=3no.of male=3Total no.of candidates=6

Q: 1. You will obtain regression estimates predicting Attendance from the number of Flyers posted…

A: Introduction: Since the attendance is being predicted using the number of flyers posted around town,…

Q: A tire company makes tires that have a normal distribution with a mean of 70000 miles with a…

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Q: Should p be assumed normal? (a) n = 180, 77= .05 O Yes O No (b) n = 100, π = .04 O Yes O No

A: Solution-: We want to check p be assumed normal? (a) n=180,77,π=0.05 (b) n=100,π=0.04

Q: (a) What are the null and alternative hypotheses? Ho: p ♦ 14 HA: P → => 14 ◆ (b) What is the test…

A: Given that, a company sells bacon in packages that they claim average a weight of 14 ounces.

Q: (g) Compute the 95% confidence intervals for the mean. Suppose we have the same scenario as the…

A: g) Given Information: Sample size n=20 Sample mean x¯=25 Hypothesized value of population mean is 23…