Calculate the standard deviation of X. 6 2 0.4 0.6 P(X) Question 13 If X and Y are independent, then the correlation between X and Y is what value?

Q: Which of these is NOT a correct null hypothesis? H0: p1-u2 = 0 HO: p1<µ2 O HO:p1=u 2

A: We have given that the different null hypothesis. Here, need to find the wrong null hypothesis from ...

Q: What is the sample space? when three coins are flipped, how many outcomes does the sample space cont...

A: Sometimes, when an experiment is performed, the result or outcome of the experiment is previously un...

Q: (wolio! Jlgw) For the following frequency table, if the arithmetic mean equals 9, then the constant ...

A: We have given that the grouped frequency table. The arithmetic mean is equals to 9.

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A: Anova is used to meausre the mean significance between more than three variable. Factorial design ar...

Q: Туре: ii) Proportional Allocation - this is used when the samples you want to obtain from the sample...

A: From the given information about the various population proportions for different stratum, the sampl...

Q: Three brands of reducing pill were tried on a sample of 8 female adults. The data are given on the t...

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Q: For the following population, calculate the mean, median, mode, variance, standard deviation, coeffi...

A: Use EXCEL Procedure for finding the given values.   Follow the instruction to obtain the values:   ...

Q: Denver averages about 7800 people per day, with standard deviation of about 525. Assume that the dai...

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Q: if the p-value is 0.027 then what is your conclusion concerning the null hypothesis?

A: It is given that P-value = 0.027 Level of significance = 5% = 0.05

Q: Determine whether the events are mutually exclusive or not mutually exclusive then find the probabil...

A: From the available animals in the pet store, the probability of choosing an animal that is specified...

Q: Assume that adults have IQ scores that are normally distributed with a mean of 103.4 and a standard ...

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Q: Assume there are N = 1000 patient records from which a simple random sample of n = 20 is to be drawn...

A: Population (N=1000) Simple random sample (n=20) drawn from population.     

Q: An electrical firm manufactures light bulbs that have a lifetime that is approximately normally dist...

A:

Q: 0.04 0.03 0.02 0.01 10 20 30 40 50 60 70 80 90 100 6. What is the value of the mean u for this distr...

A: Given that; A standard normal curve is given and by using standard normal distribution we solve this...

Q: Below are the jersey numbers of 11 players randomly selected from a football tearn. Find the range, ...

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Q: Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interv...

A: HERE n= 150 p^ = 0.56  

Q: The mean salary offered to students who are graduating from Coastal State University this year is $2...

A: Given that  X~Normal( μ= 24215 , σ= 3678)  μ= 24215 , σ= 3678 , n = 75

Q: Question 3    A study was conducted to determine the differences in the average weight loss of four...

A: INTRODUCTION:  ANOVA:  As the word ANOVA may be suggest that, it is the analysis of variance, i.e. c...

Q: Find and write the proper notation and the proportion

A: Given that  Population size N=720 Favorable cases X=260 Sample size n =45 Favorable cases x =19

Q: You are conducting a test of the claim that the row variable and the column variable are dependent i...

A: For the given data perform Chi square test

Q: A marine biologist would like to estimate the mean lifespan of all Florida manatees. The mean lifesp...

A: Given that  Sample size n =37 Sample mean =47 Population standard deviation =9.8 NOTE:- According to...

Q: A. A researcher measures the amount of sugar in several cans of the same soda. The mean is 39.01 wit...

A: According to guidelines we solve only first question when given questions are different.

Q: Discuss when should you use T-test, one-way anova, and pearsons r as a statistical tool in a researc...

A: T Test It is one of the most popular statistical techniques used to test whether mean difference bet...

Q: You throw 2 dice. What is the probability that the sum of the two dice will be 5?

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Q: To test HO: u=50 versus H1: u less than 50, a random sample size of n=25 is obtained from a populati...

A: From the provided information, Sample size (n) = 25 Sample mean (x̄) = 47.9 Standard deviation (s) =...

Q: 14. A researcher obtains a t = 2.25 for a repeated-measures study using a sample of n = 15 participa...

A: It is given that Test statistic t = 2.25 Sample size n = 15

Q: Is the following considered a probability distribution? -1 1 P(x) 0.50 0.30 0.20 Ο Νο. Σp (π) 41 O Y...

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Q: You are the operations manager for an airline and you are considering a higher fare level for passen...

A: Margin of error (E) = 4.5% = 0.045Significance level (α) = 1 - 0.90 = 0.10

Q: (wilio! Jlgw) For the following frequency table, the median, mode and range respectively are Class f...

A: Solution-: We have following table: Class  Freq (fi) 3-10 1 11-18 5 19-26 2 27-34 4 We...

Q: When testing this hypothesis, what is the test statistic

A: Test is that whether the payroll coefficient is at least 0.20.

Q: (wolio! Jlgw) For the following data set {14.2, 126.9, 52.0, 8.5, 31.3, 14.6, 38.4, 71.0}, if log8=0...

A: For the following data set (14.2, 126.9, 52.0, 8.5, 31.3, 14.6, 38.4, 71.0}, if log8= 0.9031,  We ne...

Q: An unknown distribution has a mean 12 and a standard deviation of one. A sample size of 25 is taken....

A: Solution

Q: box contains 5 ide_ntical batter_ies. Among, 2 of th_em are “new” and work _properly, whe_reas the o...

A: Let the random variable X denotes the number of batteries needed to be tested. There are 5 batteries...

Q: In how many ways can two cards be drawn from a deck of cards?

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Q: The Peabody Picture Vocabulary Test has a standard score mean of 100 and a standard deviation of 15...

A: There are 3 independent samples which are 3 methods. We have to test whether there are any group dif...

Q: Suppose that a biased coin is tossed 50 times. In each flip, the probability of getting head is 3/8 ...

A: Given that, a biased coin is tossed 50 times. In each flip, the probability of getting head is 3/8 W...

Q: The average length of time for students to register for classes at a certain college has been 40 min...

A: The random variable length of time follows normal distribution. We have to test whether the average ...

Q: Express the confidence interval (0.020,0.096) in the form of p-E<p<p+E. O<p<U (Type integers or deci...

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Q: A sample of n=25 individuals is randomly selected from a population with a mean of p=65, and a treat...

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Q: Do the histogram

A: Histogram is used to visualize the data when it arranged in a specified range or class. It used to v...

Q: Erron got a new job in a shoe store at Robinson's Calasiao, Pangasinan. The numbers of pair of shoes...

A: Note: "Since you have posted a question with multiple sub -parts, we will solve first three sub part...

Q: Question 2 (This is Part A of the question) A) The table below shows the probability distribution o...

A: In the given problem we have given that the probability distribution of random variable X. X 2 3 ...

Q: quiz has 10 multiple choice questions. Each question has 5  possible answers, one of which is correc...

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Q: There are numbers from 1-200. Four random numbers are picked, whats the probability that the four nu...

A: Given that, there are numbers from 1 to 200. Four random numbers are picked. We need to find the pro...

Q: Determine whether the events are mutually exclusive or not mutually exclusive then find the probabil...

A:

Q: 5. Suppose that X1,X2, ,Xm and Y1, Y2, ,Y, are independent random samples from N(ux,o) and N(uy, o),...

A: Given that, X1,X2...Xm~ N(μx, σx2) Mean of X1,X2....Xm is x̄ and it follows normal distribution with...

Q: Do the histogram

A: The histogram represent the spread of the data set. It represent the shape of the distribution. It h...

Q: hey believe that one of the suppliers has a different variance than the other upplier and would like...

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Q: A survey found that 30% of all adults in a certain city have eaten egg for breakfast. Suppose 30 adu...

A: Let X be the random variable from binomial distribution with probability (p) = 30% = 0.30 and sample...

Q: Determine the minimum sample size required when you want to be 90% confident that the sample mean is...

A: Population standard deviation (σ) = 11.8 and confidence interval (c.i) = 90% and margin of error (E)...