what is the standard deviation
Q: BUS – 173 (Applied Statistics) Determine if the following statement are True or False. If False, wri...
A: Note: According to Bartleby guidelines expert solve only one question and rest can be reposted.
Q: 0 < y <4 fy(y)={ 8 0 ; otherwise
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Q: A population of scores has a mean of ? = 35 and ? = 3.5. Find the z-scores that correspond to the fo...
A: Solution- Given that mean mu=35 and standard deviation s=3.5 Find Z score for corresponding X values...
Q: Suppose that you randomly pick a large number of tickets from a box with tickets numbered from 1 to ...
A: Introduction: It is required to identify the percentage of the number of tickets selected that will ...
Q: Nineteen people were asked how many miles, to the nearest mile, they commute to work each day. The d...
A: We have given that the data of 19 people were asked how many miles they commute to work each day. He...
Q: 7. If µs = 0.28 and of = 0.07, what is the percent of a value being below 0.20
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Q: n a survey of 1710 adults, 53% responded "yes" to the survey question. How many adults answered "yes...
A: Given In a survey of 1710 adults, 53% responded "yes" to the survey question.
Q: Imagine that you are taking a multiple-choice quiz written in Icelandic and must guess randomly. Eac...
A: From the given information we find the probability.
Q: 1. What is the complementary event of the given event A? Event A: Select a day of the week and getti...
A: Note: As per our company guidelines, we are supposed to answer only the first question. Kindly repos...
Q: Mustration 17.14. How would you use normal distribution to find approximately the frequency of exact...
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Q: Let ? be the amount of time (in minutes) a postal clerk spends with his or her customer. The time i...
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Q: 18.14 From the two-sample t test we conclude that (a) individuals with HSAM have significantly great...
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Q: S(e* + x° + e°) +, x° + e°) dx .
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Q: At the ice cream shop, there are 19 flavors of ice cream available. How many ways can you select a b...
A: Given,Total no.of flavours=19
Q: What can teachers do to alleviate statistics anxiety in their students? To explore this question, st...
A: We have given that the mean anxiety score for students in every form of class that is formal or info...
Q: 1 out of every 10 fish have blue on them. If you were to take a random sample of 60 fish, what is th...
A: Let X denote the number of blue fish out of n = 60 fish. Let p denote the probability of getting blu...
Q: Calculate coeff. of Q.D. and Bowley's coeff. of skewness from the data given below : Profits No. of ...
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Q: From the following regression equations : 3X- 2Y- 10 = 0 and 24X-25Y+ 145 = 0, Find means of X and Y...
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Q: At the ice cream shop, there are 19 flavors of ice cream available. How many ways can you select a b...
A: Given information: At the ice cream shop, there are 19 flavors of ice cream available. The number of...
Q: We have a normal distribution with mean = 88 and standard deviation = 14. Identify the scores at the...
A: Note: According to Bartleby expert guidelines, we can answer only first question with their three su...
Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(0...
A: We have given that z-scores are normally distributed with a mean of 0 and a standard deviation of 1.
Q: Can the following table be a probability distribution? P(x) 0.1758 2 0.0463 0.3103 4. 0.2778 0.0826 ...
A: We have given that X 1 2 3 4 5 P(x) 0.1758 0.0463 0.3103 0.2778 0.0826
Q: Find the indicated area under the standard normal curve. Between z= - 1.37 and z = 1.37 Click here t...
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Q: Direction: Find the area under the normal curve of the following z-values, then sketch the curve. Wr...
A: Let Z be the random variable from normal distribution then, We will find the area ?
Q: Assuming that it is true that 2 in 10 industrial accidents are due to fatigue, find the probability ...
A: Let p be the probability that a accident is due to fatigue. Given that p = 2/10 = 0.2 Let X denotes ...
Q: The wind on any random day in Bryan is normally distributed with a standard deviation of 5 mph. A sa...
A: Given information Sample size n = 16 Sample mean x̅ = 22 mph Population standard deviation = 5 mph S...
Q: 1. NBC News reported on May 2, 2013, that 1 out of 20 children in the United States have a food alle...
A: As per our guidelines we are suppose to answer only three sub parts. Given,n=25p=0.05q=1-0.05=0.95X~...
Q: . With a = .05, how are the boundaries for the critical region determined in a one-tailed distributi...
A: We have given that the statement about to one-tailed distribution. Here we need to find out the crit...
Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed...
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Q: State whether each of the following would be a null hypothesis, an alternative hypothesis, or neithe...
A: The hypothesis is a statement about population parameters which we want to test. Note : Since you ha...
Q: Company Name Profits R&D Expense Sales Abex 194 1.6 728.4 Boeing 2256 1846 30184 Curtiss-Wright 32....
A: In this case, sales revenue is the independent variable and profit is the dependent variable.
Q: Cell phone users found that 134 of them developed cancer of the brain or nervous system. Prior to th...
A: Given x=134 n=420088 Significance level =Alpha=1- confidence=1-0.95=0.05
Q: The expected value is $
A: Here use given information and expected value formula
Q: I want to estimate the average time it takes a tomato plant to bear fruit. I randomly sample 16 toma...
A: Given,sample size(n)=16mean(x¯)=36standard deviation(σ)=17α=1-0.85=0.15α2=0.075Z0.075=1.4395 (f...
Q: How do you solve for the mean of the sampling distribution of sample means?
A: Solution-: We find how to solve for the mean of the sampling distribution of sample means?
Q: The Credit Risk Department of a major bank estimates the default rate on loans under $10,000 to be 5...
A: List of formulae : Mean of p^ : μp^ = p Standard deviation of p^ : σp^ = p(1-p)n
Q: Illustration 15.37. You are given the following data: y 85 Arithmatic mean 36 S.D. 11 8 Coefficient ...
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Q: Select all plots that are commonly referred to as Residual Plots.
A: Here Residual means difference between predicted and Actual value... Sometimes Residual is called Er...
Q: 3. By selecting a smaller alpha level, a researcher is a. Decreasing the risk of a Type I error 3. b...
A: Given : By selecting a smaller alpha level, a researcher is
Q: Please calculate Cronbach's alpha.
A: Here Given No of Items=k=23 Variance for total score=s2y = 218.84 ∑Si2 = 218.84
Q: 10. Suppose that X1,.., X, form a random sample from the normal distribution with unknown mean u and...
A: Given- Suppose that X₁,.... X, form a random sample from the normal distribution with unknown mean u...
Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to d...
A: We have given that Z follows standard normal distribution that is, Z ~ N( 0, 1 ). Note: P-value ...
Q: Suppose that you repeatedly roll a pair of fair dice and keep track of the sum. What is the probabil...
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Q: The scores of individual students on a national achievement test have a normal distribution with mea...
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Q: You are the operations manager for an airline and you are considering a higher fare level for passen...
A: Note- Solving part B only.
Q: Out of 27 students in a class, 8 major in Science. Find the probability that two randomly selected s...
A: We have given that Total number student =27 Number of major in science =8 Two students are randoml...
Q: Confidence Margin of Required Sample Size (n) Level Error O 90% 0.08 unit 95% 0.09 unit 95% 0.1 unit...
A: We have given that Required sample size n. n= 0.25×(Zc/E)2
Q: Suppose that about 82% of graduating students attend their graduation. A group of 22 students is ran...
A: Givenp=0.82n=22Let "x" be the no.of students who attended their graduation
Q: 2. Let , = P(Y = j) be the prior membership probability Write down the expression of the unnormalize...
A: These circumstances very unusual yet they are critical for making the the Move from case-1 more broa...
Q: QUESTION 9 The length of an adult Great White Shark is normally distributed with a mean of 3.4 meter...
A: We have given that. X~N( μ , ?^2 ) μ =3.4 , ? =0.5 Z-score =( x - μ )/?
The average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $157.00. Assuming a
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