1. If ß be the angle between the lines of regression, show that tan B = (1 -) 0,0/r (o, + o,). Explain the significance of the formula when r= 0, r= +1

Q: In 1990, out of a total of 2,000 students in a college 1,400 were for Graduation and the kesy for…

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Q: What is the tabular value if the level of significance is 5% and n = 12 (one-tailed)? Please show…

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Q: 4. The mean prize of 25 computer desktop for gaming online is 55,450 pesos with a standard deviation…

A: here use basic of confidence interval

Q: Systolic Blood Pressure (SBP) of 13 workers follows normal distribution with standard deviation 10.…

A: We have given that the data of systolic blood pressure of 13 workers follow normal distribution with…

Q: 609001 2 51800

A: Given : The data given is as below 60900 51800 47500 42700 34600 31400 30500 29900…

Q: plz solve it within 30-40 mins I'll upvote your answer

A: Solution

Q: Suppose 190 geology students measure the mass of an ore sample. Due to human error and limitations…

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Q: Interpret the P-value.

A: here given , A store manager claims that 60% of shoppers who enter her store make a purchase. To…

Q: 3. 94% 4. 84% 5. 81% R Assuming that t

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Q: In 1990, out of a total of 2,000 students in a college 1,400 were for Graduation and the kesy for…

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Q: equal to 01).

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Q: For questions 5-8. In a certain barangay, Local Government Unit (LGU) distributes "ayuda" benefits…

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Q: (c) Construct and interpret a 90% confidence interval for the population proportion of adults in the…

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Q: Cumulative Labor-Hours by the Number of Weeks after Job Begins Weeks (x) Hours (f) 23 4 156 7 1253…

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Q: You just completed a small research project for your psychology class concerning the effects of an…

A: Rules of mean and standard deviation EaX+b=a×EX+bsdaX+b=a×sdX a) E[X] = 20.1 sd[X] = 2.7 b = -3

Q: to qualify for a police academy, applicants are given a test of physical fitness. The scores are…

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Q: 4. Consider a normal population mean of 89 and population standard deviation of 63 Calculate the…

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Q: Are the conditions for inference met?

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Q: B. Identify the parameter and statistic used in each of the following. 1. A researcher wants to…

A: Parameter is a characteristic of population. Whereas statistic is a characteristic of sample.  A…

Q: When population standard devia good estimator of population s Che t-distribution is unique for e he…

A: 1)  a point estimate is a numerical value of sample statistics which is used as a single estimate of…

Q: Directions: Follow the steps in testing hypothesis to answer the following problems. a. Identify…

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Q: A² sin(@,t) and (b) Ryy(T) 2 Find the cross power spectral density. if (a) Rxy(T)= -cos(@T). %3D

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Q: The following is the data set for specific research regarding a certain product 15 19 14 20 13 23…

A: The following is the data set for specific research regarding a certain product: 15  19 14  20 13…

Q: 1) What is the probability of getting 4? 2) What is the probability of getting 2 or 4 heads? 3) Find…

A: As per bartleby guidelines we can solve only first three subparts and rest can be reposted

Q: B) Describe your table based on Sex, civil status and work status) Sex Cumulative Frequency Percent…

A: Given three tables based on sex, civil status and work status.

Q: poll taken of 500 voters three months before the election showed that 55% favored the Republican…

A: Solution Given the two samples are taken and both provide the estimate of the proportions with…

Q: 6. Calculate the sample size needed in order to estimate the true proportion of defective in a large…

A: Confidence interval are constructed by using z distribution.

Q: A study discovered that Americans consumed an average of 13.2 pounds of chocolate per year. Assume…

A: Let X denote the  annual chocolate consumption follows the normal distribution. (a) The probability…

Q: If the sample size is n=16 what is likely true about the shape of the population?

A: Solution:  Central limit theorem: The central limit theorem state that as the sample size increases…

Q: If the autocorrelation of a WSS process is Ry (T) = K KFI, show that its spectral density is 2 given…

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Q: Show that if x', y are the deviation of the variables from their means, then x Yi r=1. Σ 2N - Ox Oy…

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Q: The company Hedonic has made coffee dispensers available to its workers. The coffee consumption of…

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Q: Suppose that a mobile telecommunication company’s helpline receives five calls, on average, per…

A: Here Given  Mobile telecommunication company’s helpline receives five calls, on average, perminute.…

Q: 5. For two variables x and y with the same mean; the two 1-a regression equations are y = ax+b and…

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Q: 2-Let X be a continuous random variable with the following pdf Mæ) = { 3* if0 <a< 2 elsewhere %3D…

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Q: I. If X1, X2, ...,Xn constitute a random sample from a population with the mean µ, what condition…

A: An estimator c is said to be unbiased estimator of µ is E(c) = µ.

Q: Use the geyser eruption duration times in seconds and the accompanying 200 bootstrap samples…

A: Given that - Use the geyser  eruption  duration  times in seconds  and the accompanying  200…

Q: previous studies it is found that the standard devotion of B can be e A two-tailed test on a 99%…

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Q: Find the cross correlation function for the psd Sxy 25+ a

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Q: (a) What will happen to the length of the interval estimate if the confidence level is increased…

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Q: A major university would like to improve its tarnished image following a large on-campus scandal.…

A: Since, the specific question number is not mentioned, we'll be answering the first question only.…

Q: Step 1: State the Hypothesis Ha: ĩ # 100 hrs Ho:ĩ = 100 hrs Step 2: Level of Significance a =0.05…

A: Given  n=100 bulbs μ=1000 hrs σ=100 hrs x¯=980 hrs

Q: QUESTION 20 "When running a t-test, it is essential that you select the right one for your…

A: False

Q: show that a best critical region for testing H : 0 = 1 vs Ha : 0 = 2 is C = ((11, x2, ..., n) : c <…

A: The Neymann-Perason Lemma will be used to find the best critical regiol for given hypotheses.

Q: Which of the following statements is true? Group of answer choices The probability of dying in…

A: Given four statements about the survival function.

Q: For questions 13-15. On the average, male drinks 2 liters when active outdoors with a standard…

A: From the provided information, Mean (µ) = 2 liters Standard deviation (σ) = 0.7 liter X~N (2, 0.7)

Q: The data given below relate to the marks obtained by 20 students in two subjects A and B. Prepare a…

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Q: Angle between Regression Lines. Suppose one finds the linear regression of y on x and also the…

A: Please find the solution below. Thank you

Q: 4. On the same assumption, find the probability that the mean of a random sample of 5 such…

A: Let X be the random variable from normal distribution with mean (μ) = 10 years and standard…

Q: Use a pivot table to construct a frequency distribution and histogram of lunch sales amounts for the…

A: Date Day Lunch Dinner Delivery 01-Apr Saturday 595 1406 911 02-Apr Sunday 938 1270 526 04-Apr…