Confidence Level Margin of Error Standard Deviation Required Sample Size 95% 1 unit 10 99% 0.08 unit 3.6 90% 0.6 unit 7.02

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Q: 3. Find the probability area between z = -0.25 and z= 1.5.

A: The standard normal variate is used to measure the number of deviations from the mean. The probabili...

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A: Given data is Number of ice creams sold 5 7 9 13 20 Cost of the ice creams 27 60 72 150 225

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Q: 10. Which of the following is the most appropriate graph to compare th average number of mayas among...

A: Bar graphs are used to compare things between different groups or to track changes over time.

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A: Followings are the Explanations of the question Calculate the Sample Mean and Sample Standard deviat...

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Q: Frist Chart: Total Attributes Score Seond Chart: Attribute Ratings and Importance 1. Compare and c...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...

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A: Given information:   Cases/total n Cod liver oil   No 1095/25365 Sometimes 428/11579 Da...

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Q: A university plans to invest in a particular project. There is a 35% chance that the university will...

A: Given,35% chance that the university will lose 30,000 phpand 25% chance that the company will make 5...

Q: In a sample of 8 observations, the sum of squared deviations of items from the mean was 84-4. In ano...

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Q: I. Occurrence of heads and tails in tossing coins. One Coin Two Coins Toss Number Нead Tail Two Tail...

A: When we toss a coin, there are two possible outcomes, either there would be a 'head' (H) or a 'tail'...

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A: here given a simulation result total outcomes in result  = 20 and  let 5 and 6 represents the german...

Q: c). Construct a 95% confidence interval for the difference in the actual average number of days to p...

A: The given data is based on the customer takes number of days to make payment of last bill under the ...

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A: The forecasting for the total oil production (in millions) is to be concluded using the simple expon...

Q: II. Calculate 1) mean 2) median 3) mode 4) range 5) variance and 6) standard deviation data 2 4 6. 7...

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

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A: Given,sample size(n)=20sample mean(x¯)=90standard deviation(s)=14.5degrees of freedom(df)=n-1df=20-1...

Q: Illustration 3. Find out the value of quartile deviation and its cocfficient from the following data...

A: Solution,  We have to find quartile Devitation Therefore, quartile Devitation = Q3-Q1/2 Q3=40 Q1=15 ...

Q: Jose's ACT score had a z-score of 1.15. What was his ACT score? Standardized tests: In a particular ...

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Q: Question: 10. Show scatter plot and trendline.

A: Given: Milk tea Kilos Gain 13 25 9 19 16 27 14 31 12 13 6 32 10 31

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A: Inferential statistics is involved in drawing inferences about the population from the sample, which...

Q: Example: The daily lottery costs $1 to play. You pick a 3-digit number. If you win, you win $500. Fi...

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you re...

Q: Which do you prefer in representing a probability of getting odd sum of a pair of dice is tossed

A: Here rolling pair of dice So Total possible outcomes = 6×6 =36 Probability  =(#Favorable outcomes)/ ...

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A: Given:   Trial Smith Walsh Trevor 1 11.1 19 14.6 2 13.5 18 15.7 3 15.3 19.8 16.8 4 14.6 ...

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Q: uousario Each year during Easter, an average of 30 car accidents occur. Determine the probability of...

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Q: a= 0.1, two tailed test a = 0.5. right-taled test

A: Here use Normal distribution table for z  score

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A: Null and alternative hypotheses: Null hypothesis: The null hypothesis is a statement that indicates ...

Q: of trees in a garden: Height in ft. No. of trees Height in ft. Less than 35 Less than 7 No. of trees...

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Q: - Calculate mean deviation from the following series: 10 11 12 13 14 Y 3 12 18 12 3

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Q: Nuclear power: The following table presents the number of nuclear reactors as of August 2, 2013, In ...

A: Mean, Median and Mode are measures of central tendency.

Q: Aling Puring needs to put the harvested sitaw, saging, mais, and macapuno in a basket. However, the ...

A: Given : Aling Puring needs to put the harvested sitaw, saging, mais, and macapuno in a basket Total ...

Q: A random variable X has the following probability distribution: x0 2 X 4 6 P(X) 0.12 0.10 2k 0.28 Fi...

A: A random variable X has the following probability distribution: X 0 2 4 6 P(X) 0.12 0.10 2k 0.2...

Q: D E F K M P Assume X is normal random varaible with mean 50 and sandard deviation 10. P(X>30)= P(40<...

A: As per our guidelines we are suppose to answer only one question. Given,mean(μ)=50standard deviation...

Q: Your goal is to estimate a population proportion with a sample size n = 700 and the sample proportio...

A: Here check condition use z critical for confidence interval of population proportion 

Q: The Graded Naming Test (GNT) is used when diagnosing cognitive deficits of the sort that can occur a...

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Q: Find the upper and lower outlier boundaries. Nuclear power: The following table presents the number ...

A: Outliers are extreme values .It increases the error variance and reduces the power of statistical te...

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and ...

A: mean(μ)=E(X)=∑X.P(X)variance(σ2)=E(X2)-E(X)2standard deviation(σ)=E(X2)-E(X)2

Q: Hannah is a participant in broadcasting and feature writing, what are the values of winning the cont...

A: Given that, Hannah is a participant in broadcasting and feature writing.Let the winning the contest ...

Q: In a computer instant messaging survey, respondents were asked to choose the most fun way to flirt, ...

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Q: On a test that has a normal distribution, a score of 66 falls three standard deviations above the me...

A: Given 66 falls 3sd above mean and 60 falls 1sd above mean

Q: For items 1-10, consider the following: The members of Math Club are to choose a representat among f...

A: Hi there! Thanks for posting the question. Since there are multiple subparts we have solved three su...

Q: Account name b. Months in the calendar c. Average monthly savings d. Number of bank accounts e. None...

A: 1) Interval scale is a type of measurement scale where the order of the values and the difference be...

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no ...

A: Given,margin of error(E)=0.05Assume sample proportion (p^)=0.5α=1-0.99=0.01α2=0.005Z0.005=2.58    (f...

Q: x+ µ| x-H

A: Which one is the correct choice

Q: 7. Which of the following is(are) TRUE about the data set? I. The number of mayas deviates from its ...

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Q: Compute the least-squares regression line for predicting the diastolic pressure from the systolic pr...

A: The regression equation for one independent variable is,