. Find the 38th percentile of the standard normal distribution. What is the theoretical coefficient of

Q: Suppose you wish to compare the characteristics of tuberculosis meningitis in patients infected with…

A: a)No, Two underlying populations do not have equal variances. as their difference of standard…

Q: Consider a Uniform distribution U(10, 168) Compute the P(x > 81), Round to the nearest thousandth.

A: It is given that a Uniform distribution U10,168.

Q: a) The final grades of forty students were randomly selected, recorded and inputted into MINITAB.…

A: The test statistic for testing mean is given by, z=(x̄-µ)/σ/ sqrt(n) Where sample mean is x̄= 87…

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A:

Q: To compare the effect of stress caused by noise on the ability to perform a simple task, 74 subjects…

A:

Q: Apply the​ 68-95-99.7 rule to answer the question.   The amount of​ Jen's monthly phone bill is…

A:

Q: claims that the standard deviation of its electric bulbs is less than 121.5. Suppose that we want to…

A: It is given that  Mean, μ = 600 Standard deviation, σ = 121.5

Q: sample is 49 hours and that the standard deviation is 5 hours. Based on this information, complete…

A: The hypothesized mean is 44 minutes.

Q: A car dealer recommends that transmissions be serviced at 30,000 miles. To see whether her customers…

A: We state the hypothesis for the above question,  H0: the owners are having their transmissions…

Q: The weights of a certain brand of candies are normally distributed with a mean weight of 0.8611 g…

A: given data,normal distribution,μ=0.8611σ=0.0512n=455p(x>0.8536)=?

Q: A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are…

A: Use EXCEL Procedure for finding the values of systolic and Diastolic.   Follow the instruction to…

Q: MPG Frequency 19 2 OA. The mean is approximately oreign cars is given in the following frequency…

A: Data given X Frequency 19 2 20 5 21 2 22 7 23 4 24 7 25 8 26 8 27 3 28 5 29…

Q: *7.3 Suppose the sample standard deviation of serum cre- atinine in Problem 7.1 is 0.6 mg/dL. Assume…

A: 7.3)

Q: On reward day 57 students played kickball 35 saying karaoke and 108 went swimming what percent went…

A: It is given that  Students played kickball = 57 Students saying karaoke = 35 Students went swimming…

Q: A common way to analyze count or frequency (e.g., number of head or tails) data is with a chi-…

A: Hello! As you have posted 3 different activities, we are answering the first question. In case you…

Q: According to the WHO MONICA Project the mean blood pressure for people in China is 128 mmHg with a…

A:

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of​ adults, and those scores…

A: Given info: IQ scores of​ adults are normally distributed with a mean of 100 and a standard…

Q: Standerd donation yo Skewed to the 3 Left-ve Righ (+4) Sketch the Garve

A: Solution-: first we want to find mean, median, mode Q1 and Q2 then  (7) Standard deviation=? (8)…

Q: 12 15 Let S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for…

A: The given linear model is Ft=9.44t+84.182.

Q: 3. A researcher claims that the distribution of favorite pizza toppings among teenagers is as shown…

A: Given that: Observed Frequency: Topping Cheese Pepperoni Sausage Mushrooms Onions Results…

Q: From a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterva…

A:

Q: A population proportion is to be estimated. Estimate the minimum sample size needed to achieve a…

A: given data E = 0.04ci for p 95% ci n = ?

Q: Use the following data set to find the equation of the regression line.  Show the output and the…

A: When we want to predict the value of one variable, say y, from the given value of another variable,…

Q: 5.6 As s part of his thesis, Adam needs an estimate of the proportion of full-time undergraduate…

A: From the provided information, Confidence level = 90% Margin of error = 0.025

Q: A tire company makes tires that have a normal distribution with a mean of 65,000 miles and a…

A: We have given that Mean(µ) = 65000Standard deviations (σ) = 3000 X ~ N (µ, σ )= N(65000, 3000)

Q: Professional tennis player Novak Djokovic hits the ball extremely hard. His first-serve speeds can…

A:

Q: A fashion designer predicted in September, that October demand for dresses will be 142 dresses.…

A: It is given that the actual October demand was 153 dresses and forecast October demand for dresses…

Q: A college is trying to attract more commuting students from the local community. The table below…

A: Given,sample size(n)=30α=1-0.95=0.05α2=0.025Z0.025=1.96

Q: A sample of 50 luxury hotels in the Northeast had an average room rate of $325 per night and a…

A: Introduction: It is required to identify the correct interpretations of the 95% confidence interval.

Q: Suppose a game is played with one six-sided dice. If the dice is rolled and lands on 1, 2, or 3, the…

A: It is given that a game is played with one six-sided dice.

Q: You are asked to select a password that consists of 5 characters. Each of the characters can be any…

A: It is given that a password consists of 5 characters, each characters can be any of the capital…

Q: ege claims that the proportion, p, of students who commute more than fifteen miles to school is less…

A: Given that  Sample size n =265 Favorable cases x =36 Sample proportion p^=x/n  =36/265 =0.1358…

Q: Wildlife conservationists studying grizzly bears in the United States found that the mean weight of…

A: given data n = 24x¯ = 600s = 8395% ci for μ.

Q: 15. A jar contains 36 disks: 9 each of four colors - red, green, blue, and yellow. Each set of disks…

A: The information provided in the question are as follows : “Since you have asked multiple question,…

Q: You want to estimate the mean hourly yield for a process that manufactures an antibiotic. You…

A: We have given that n = 100 x̅ = 37 s = 4

Q: When constructing a research design and the researcher has gender as a variable, please answer the…

A: Gender Is qualitative or categorical variable, that can be divided into two categories.

Q: Tablet PC comparison provide a wide variety of information about tablet computers. Their website…

A: Given information: The data is given. Type of variable: Quantitative variables: The quantitative…

Q: d) Compute the margin of error, E. 1. At Abraham Lincoln High School an achievement test is…

A: d) Suppose µ is the population mean score for Abraham Lincoln High School.

Q: f(x, y) = x² + y² 62 (a) Find P(X= 2, Y = 1). Ans. where x = 0, 1, 2 and y = 0, 1, 2, 3 and f(x,y) =…

A: It is given that the joint probability function of two random variables X and Y.     Note: According…

Q: An estimator is "______" if its expected value equals the population parameter of interest

A: The question is about inference Introduction : Estimator : When a statistic is used to estimate a…

Q: ere are four suits: clubs, diamonds, hearts, a ck, Queen, King. The Jack, Queen, and King a arts are…

A: Probability = number of favorable outcomes/ total number of outcomes

Q: Scores on an iq test are normally distributed. A sample of 6 in scores had standard deviations s=7 A…

A:

Q: Assume you have an Exponential Distribution with parameter of 0.040 Find P( 15 < x < 42) round to…

A: given data exponential distributionλ = 0.040P(x&lt;X) =1- e-λxP(x&gt;X) = e-λx

Q: Deer mice (Peromyscus maniculatus) are small rodents native of North America. Their adult body…

A: Given that  Sample size n =14 Sample mean=91.1 Population standard deviation =8

Q: Logging activity in forests is thought to affect the behavior of black bears. An important measure…

A: The number of observations is 12.

Q: The overhead reach distances of adult females are normally distributed with a mean of 195 cm and a…

A: From the provided information, Mean (µ) = 195 Standard deviation (σ) = 7.8 X~N (195, 7.8)

Q: In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to…

A: Solution-: Here, we use proportion test (Z-test) Given: x=1288,n=6959,P0=0.20,α=0.01 We want to  (a)…

Q: For part d, I see how you get the final answer with excel, but what I'm not understanding is the…

A: Given that mean is 8.5 and standard deviation is 0.45 We have to find  d.. The 90th percentile of…

Q: If 1 adult female is randomly​ selected, find the probability that her pulse rate is less than 80…

A: Let X denote the pulse rates of females. Given that X follows N(mean = 73.0, SD = 12.5), then Z = (X…

Q: A sample of 50 luxury hotels in the Northeast had an average room rate of $325 per night and a…

A: From the provided information, Sample size (n) = 50 Sample mean (x̄) = 325 Sample standard deviation…