A poll is given, showing 45% are in favor of a new building project. If 5 people are chosen at random, what is the probability that exactly 3 of them favor the new building project?

Q: Some fruit are sold whose weights follow a normal distribution such that X-N(90, 16) If the heaviest…

A: Given : Some fruit are sold whose weights follow a normal distribution such that X-N(90, 16)

Q: TInterval Refer to the accompanying data display that results from a simple random sample of times…

A: The random variable X follows normal distribution. We have to write the confidence interval, point…

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A:

Q: roblem (6) A study used 1259 patients who had suffered a stroke. The study randomly assigned each…

A: Given   n1=634 p1= 25/634 = 0.0394 n2= 625 p2=18/625 = 0.0288 Find Part a and b

Q: Suppose I want to know if violent video games cause young people to behave aggressively. Answer what…

A: Given that we want to know if violent video games cause young people to behave aggressively. We have…

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A: Here, we know that r-square is coefficient of determination.

Q: Is Property 2 of the definition of a probability density function over the given interval now​…

A:

Q: 9 Some fruit are sold whose weights follow a normal distribution such that X-N(90, 16) If the…

A: Anwer given below

Q: Past studies have indicated that the percentage of smokers was estimated to be about 32%. Given the…

A: Given P=32%=0.32 Sample size (n)=1820 X=532 Significance level=0.05

Q: 4. Arranging the possible children of a couple with 3 children given that . second child is a girl.

A: Given:  A couple have 3 children(Boy(B) ,Girl(G))  Then to write sample space 3 children given that…

Q: Use the zz-score formula, z=x−μσz=x−μσ, and the information below to find the value of xx. Round…

A:

Q: Information about a random sample is given. Verify that the sample  is large enough to use it to…

A:

Q: Use the zz-score formula, z=x−μσz=x−μσ, and the information below to find the mean, μμ. Round your…

A: Using the z-score formula and the given information, we have to find the mean.

Q: year Calculate the mode.

A: We have given that the data represent the number of paid public holidays per year from selected 9…

Q: A tire company claims that their new tires will have an average life of 122000 miles. A consumer…

A:

Q: researcher is conducting a study to examine what factors influence older adult's Binge Drinking…

A: Given that  Sample size n =1666 Sample mean =2.62 Population standard deviation =11.52

Q: What is the factor and its levels? Factor: the eight-week time period; Levels: the first 4 week, the…

A: In this case, it is needed to find the factor and it’s level.

Q: he following data calculate the groSs and net roproduction rates of females. Can you also calculate…

A:

Q: a random sample of 63, the proportion of the sample with a certain characteristic was 0.61. What is…

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Q: A continuous random variable X is defined to have a uniform probability density function given as…

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Q: Suppose that the local sales tax rate is 7% and you purchase a car for $14,600. a. How much tax is…

A: Find how much tax is paid? what is the total cost?

Q: Illustrate and find the area under the standard normal curve 3. To the right of z =1.03 4. To the…

A: Solution

Q: In which scatter plot is r= -0.7? (A) (B) (C) (D) . (E) (F) ... The graph ) shows a scatter plot…

A: we have given that r = - 0.7

Q: A sample of 126 was found to have a standard deviation of 5.9. An interval estimate for ?μ based on…

A:

Q: 46. A sample of 5,324 Americans were asked about what matters most to them in a place to live.…

A:

Q: A random sample is drawn from a population of unknown standard  deviation. Construct a 99%…

A: Formula : CI=point estimate ± ME

Q: The number of x people entering the intensive care unit (ICU) at a particular hospital on any given…

A:

Q: True or False?  A clinical trial is conducted to compare an experimental medication to placebo to…

A: A clinical trial of 100 participants is conducted to compare placebo and experimental medication.…

Q: Develop a random variate generator for a random variable X with the pdf if x < 0, f(x) = %3D e-2x if…

A:

Q: Let X1, X2, X3… X20 be a random sample from a distribution with mean 8 and variance 5. Find the mean…

A: Solution-: Given: μ=8,σ2=5  Let, x1,x2,........x20 be a random sample from a distribution with mean…

Q: Answer the following items by calculating the probability of committing an error. Given: µ = 300, &…

A: Given information:- μ=300, x¯=290σ=25, n=35

Q: Determine the value A (to 2 decimal places) of the following p.d.f.: A(1-x²) -1<x<1 s(x)= otherwise…

A: Solution

Q: 10 Some fruit are sold whose weights follow a normal distribution such that X-N(80, 15) If the…

A: (10)   Obtain the maximum weight of a small fruit.   The maximum weight of a small fruit is obtained…

Q: Ages Vs Systolic Perform the following regression: X = [21, 31, 33, 40, 20, 27, 18, 39, 36, 44,…

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

Q: A normal random variable x has variance equal to 4. Find the mean of the distribution if the…

A: Given,standard deviation(σ)=2

Q: 7 The population of a country follows a normal distribution with mean height 180 cm and standard…

A: Given that  X~Normal(μ = 180 , ? = 5)  Find  P(X&lt;175 or X&gt;185)

Q: Very few testing procedures are absolutely perfect. This has become particularly apparent with the…

A: Let C be the event that someone has COVID-19 Cc is the event that someone does not have COVID-19 Let…

Q: a) Find the constant c? b) Find the marginal pmfs of X and Y. c) Are X and Y independent? Why or Why…

A:

Q: If a student has a Z-SCORE of 1.8, what percentile are they in. (Use the Z-SCORE TABLE) Standard…

A: Given: Z = 1.8

Q: The test is a nonparametric test of significance for determining the probability that two random…

A: Given that  test is a nonparametric test of significance for determining the probability that two…

Q: The following table is from a publication. The individuals in the following table have an eye…

A: Solution: The observed frequency table is  Tyep of irritation  18-29 30-44 45 -64  65 and  older…

Q: Test for the significance of the intercept and the slope using t-test with a=0.05.

A: Given: Since the number of days that the ozone level exceeds  0.20 parts per million depends on the…

Q: Consider the following data IM 12 14 3 14 5.5 16 Use the given type of regression to find the…

A: a) b) c) d)

Q: a. Using the pairs of values for all 10 points, find the equation of the regression line. b. After…

A: a. From the scatterplot the points are (2,9), (4,2), (4,3), (4,4), (5,2), (5,3), (5,4), (6,2),…

Q: The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0…

A: X follow the uniform distribution i.e. u ( 50.0 , 52.0)  By using the uniform distribution we find…

Q: chapter 8, question  a simple random sample size n=13 is obtained from a population u=66 and q=15…

A: Given that ; μ = 66 ? = 15  n = 13 By using standard normal distribution to solve this problem.

Q: a. X is a normally distributed variable with mean μ=30 and standard deviation σ=4. Find: a) P(x21)…

A:

Q: 3 The mass of packages from a particular machine are normally distributed with a mean of 200g and…

A: Given that : u = 200 g  ?2 = 9 g  By using standard normal distribution to solve this problem.

Q: 9 Some fruit are sold whose weights follow a normal distribution such that X-N(90, 16) If the…

A: We have given the normal distribution.  Mean = 90 Variance= 16 Standard deviation = 4

Q: Two researchers studied the relationship of positive emotions and longevity by examining smile…

A: Given that, Two researchers studied the relationship of positive emotions and longevity by assessing…