What is the Standard Deviation and the Percentage that falls within the 1 Distance of Standard Deviation?

Q: Factories A and B produce computers. Factory A produces 2 times as many computers as factory B. The…

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Q: random sample of 15 tubes is selected from the manufacturing process. b) Find the probability that…

A: The probability of defective rate is 10%; p=0.10 A random sample of 15 tubes; n=15

Q: If you use a 0.10 level of significance in a​ (two-tail) hypothesis​ test, the decision rule for…

A: Given,H0:μ=14.9α=0.10α2=0.05Z0.05=-1.645  , +1.645and ZSTAT=-1.44

Q: What is the odds ratio for the association between Adults vs. Children and COVID-19?

A: An odds ratio evaluates a demographic's connection between one attribute A and another attribute B.…

Q: a) Estimate the degree of freedom for the above scenario.

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Q: What conditions are necessary in order to use the dependent samples t​-test for the mean of the…

A: Necessary conditions for dependent samples in t-test, and for the difference in the means of two…

Q: The​ quality-control manager at a compact fluorescent light bulb​ (CFL) factory needs to determine…

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Q: 1. a) Central Limit Theorem states that if the population is normally distributed, then no matter…

A: Here use central limit theorem  Central limit theorem  Central limit theorem states that when sample…

Q: We examine the effect of different inputs on determining the sample size needed to obtain a specific…

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Q: 10. It has been lo ponents produced in a certain factory are de hundred is drawn from each day's…

A: A random sample of size one hundred is drawn; n=100 1% of electronic components are defective;…

Q: Consider the following hypothesis test: A sample of 140 is used and the population standard…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The Tippie College of Business obtained the following results on the salaries of a recent graduating…

A: Formula Used: Test-statistic t = X1 - X2sp1n1+1n2 Where, sp is pooled standard deviation. sp =…

Q: You wish to test the following claim (Ha) at a significance level of α=0.05. For the context of this…

A: Paired t test for differences has used  to test the given hypothesis.

Q: A card is drawn at random from a deck of 52 playing cards. Find the probability of the card drawing…

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Q: What is the confidence interval for the population mean u? <<(Round to one decimal place as needed.)

A: Given: The number of observations, n =12 Confidence level=90% 7 9 3 9 6 6 7 8 7…

Q: Use the following conditional expectation to answer the following 3 questions. E(2X²Y+4Y+1.3X |X)…

A: E (2 X2 Y + 4Y + 1.3 X | X) = 2 X2 E(Y |X) + 4 E(Y|X) + 1.2 X

Q: A study was conducted to determine whether pneumonia is associated with Covid-19. Of the 275 cases,…

A: Strength of association between the two variable with exposure and the disease used to take…

Q: Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at…

A: According to the given information in this question We need to find the test statistic and p value…

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

A: Given: n1 = 9 Children. X1 = 2.7 Hours. n2 = 9 Adults. X2 = 2 Hours. α = 1% = 0.01

Q: Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported…

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Q: Find the p-value (decimal rounded to nearest 4 places) A company claimed that more than 75% of…

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Q: Use the table below to find the standard deviation of the following data set: 17,18,19,30,32,48

A: Given that  Data set : 17,18,19,30,32,48  Sum of data values = 17 + 18 + 19 + 30 + 32 + 48  = 164…

Q: If a random sample of size n=160 has x¯=105 and s=9.5, find the standard error of the statistic.…

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Q: Suppose that the caffeine in one tablespoon of Folgers is normally distributed with a mean of 45 mg…

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Q: Make a scatterplot of the data. Then find an exponential, logarithmic, or logistic function f that…

A: Given: Here x and y data are given.

Q: 5) How many five digit numbers are there that start and end with an odd digit and also the middle…

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Q: As a result of complaints from customers about delivery times, the manager at a pizza delivery…

A: Null hypothesis H0:mu equals 20 Alternate hypothesis H1:mu not equals  20

Q: Which of the following Excel formulas will calculate the probability the percentage of returns will…

A: The following information has been given: x=17 mean :μ=10 standard deviation :σ=10 We need to…

Q: There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test…

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Q: Hypotheses and summary sample statistics are given for a test for a mean. Assume that the conditions…

A: Given X-bar=108 n=20 S=35.6 Mean=100

Q: May you please write clearer, i don't understand step b and c.

A: Probability is measured by the number of favorable items occurrence in an experiment. It is…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.002. For the context of…

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Q: Lottery Prizes A lottery offers one  $1000  prize, two  $500  prizes, three  $300  prizes, and…

A: Given that: A lottery offers one $1000  prize, two $500 prizes, three $300 prizes, and four  $200…

Q: Consider the following hypothesis test: Ho: μ = 22 Ha:μ #22 A sample of 75 is used and the…

A: We have given that The null and alternative hypothesis are H0 : µ = 22H1: µ ≠ 22 Population mean (µ)…

Q: C.I=16.3 ±1.96 * 5.322=16.3 ± 2.21= 14.09, 18.51  it is wrong.

A: Confidence interval is the range where the true value of parameter range. It is calculated by the…

Q: A business travel magazine wants to classify transatlantic gateway airports according to the mean…

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Q: A recent court decision supported a pilots decision to continue to his destination with a four…

A: Given that: The argument was that an aircraft will fly on two engines and that the probability of…

Q: 30. The following data represents the number of days absent, x, and the final grade, y, for a sample…

A: Given : No. of absences  x Final Grade y 0 89.2 1 86.4 2 83.5 3 81.1 4 78.2 5 73.9…

Q: 1. The bank counter at Universitas Islam Indonesia will give the service to 0, 1, 2, 3, 4, or 5 or…

A: As asked I have answered question no:3  Please find explanation below. Thank you

Q: The following data were obtained from an independent-measures study comparing the trainees’ test…

A: The question is about one way - ANOVA Given :

Q: Bicycling, the world's leading cycling magazine, reviews hundreds of bicycles throughout the year.…

A: Given, Bicycle brands weight and the price is provided, Weight Price ($) 17.8 2100 16.1 6250…

Q: An article in the Journal of Strain Analysis (1983, Vol. 18, No. 2) compares several methods for…

A: Given: Sample size n = 9 Formula Used: Confidence interval = d ± t*sn

Q: The owner of a small pet supply store wants to open a second store in another city, but he only…

A: The following information has been given: The sample size is n=150. The favorable cases are x=64.

Q: An auto rental firm is using identical motors that are adjusted  to run at a fixed speed to test…

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Q: Find the p-value (decimal rounded to nearest 4 places) A survey of 50 packages found a mean…

A: Given : Sample Size (n) = 50 Sample Mean (X¯) = 3.2 Population SD (σ) = 2.2 Company Claim : Its…

Q: 2. If X is N(3, o² = 4) find (a) P(X < 3). (b) P(X <5), (c) P(X < 1).

A: Given that X is Nμ=3, σ2=4 i.e. X~N(μ=3,σ=2) Then Z=X-μσ follows standard normal distribution i.e.…

Q: Assume that the random Variable X is normally distributed with mean pl = 50 and Standard deviation…

A: Population mean μ=50, standard deviations σ=7 P(35&lt;X&lt;57)=?

Q: 24. Twenty students, selected at random were asked to estimate the number of hours that they had…

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Q: 1. b) Trup For a Binomial Distribution, the probability of success is always 2.

A: We know that  Binomial distribution probability is used when there is only two chances in an event.…

Q: work The following data show the brand, price ($), and the overall score for six stereo headphones…

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