On a typical Saturday night at a local bar in San Diego, about 62% of people order a drink that has tequila. We randomly select 250 people who go to this local bar. a) Find the mean and standard deviation. Round to two decimal places. b) Can the normal approximation to the binomial be used? Check the conditions!

Q: A set of 10 scores has a standard deviation of 8. What is the sum of squares?

A: Given,Number of scores = 10Standard deviation = 8Using formulas,For population, For sample,

Q: A wildlife study is designed to find the mean weight of salmon caught by an Alaskan fishing company.…

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Q: imagine we have 4 observations. the values lie  0 - 25 (inclusive, and repeats are allowed).  What…

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A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: A sample of n = 5 scores has a mean of M = 9. What is EX for this sample? %3D %3D

A: Given: Sample size = n = 5  Mean = M = 9 We have to find ∑X for the given data.

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A: Objective of this question is that which option is the correct choice.

Q: For a binomial distribution, the mean is 6 and the standard deviation is 2. Write out all the terms…

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Q: The standard deviation may not be greater than the mean. O True O False

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Q: Listed in the data table are Q scores for a random sample of subjects with medium lead levels in…

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Q: Assume thAt scores on a standardized test are known to follow a bell shaped distribution with a mean…

A: L

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: X¯ ~ N(μx¯ , σx¯) μx¯=μ=142 σx¯=σn=1349=1.86 N = Normal distribution

Q: |(a) What are the null hypothesis Ho and the alternative hypothesis Hj that should be used for the…

A: Test is that whether the mean weight of babies is greater than 7.2 pound. The type I error is…

Q: Which among the value approximately equal to P(Z>-1.20) A.) 0.1151 B.) 0.3849 C.) 0.7698 D.) 0.8849

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Q: A game involves tossing two coins and receiving 74 cents they are both heads. What is a fair price…

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Q: The mean and standard deviation of the sampling distribution of the mean is shown as?

A:

Q: A distribution of N = 10 scores has μ = 50 and σ = 10. If another five individuals, all with scores…

A: Given Data: N=10 μ = 50 σ = 10   Five individual all with scores X=50 are added

Q: A population has a stand. dev. of 24. on average, how much difference should there be between the…

A:

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: Given that μ=142σ=13n=49

Q: None

A: To conduct a hypothesis test comparing the proportion of business students at Bayview University who…

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Q: ith a mean of 110 and standard dev. of 15, find the 3 unique deviations to the left and right of the…

A: Deviations to the left   i) One standard deviation away from mean x = u - s x = 110 - 15 = 95   ii)…

Q: 3) Suppose we double each score. What is the range, mean, variance, and standard deviation?

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Q: Suppose a claim is made that the mean age of members of a golf club is 52 years. The population…

A: Given: μ = 52 σ = 6 n = 50 X = 56 Formula Used: Test-statistic Z = X-μσn

Q: 8. Using Minitab to illustrate the Central Linmit Theorem (CLT), the CLT tells us about the sampling…

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Q: The variance of a population is 5. The size of the sample collected from a population is 225. What…

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A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Q: DECIMAL FORM: 15 17 18 19 20 21 22 23 24 P(X) 0.03 0.09 0.18 0.18 0.15 0.26 0.6 0.03 0.03

A: Formula used.  E(x)= ∑x×p(x) E(x2 )=∑x2 ×p(x) Var(x)=E(x2 ) - [E(x)]2

Q: . sample mean x̄ ____________ B. sample standard deviation

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Q: claims that Chip Ahoy Cookies have an x ̅=28.67 per cookie with a SD=2.67. Assuming this information…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.