Given that Sand S are the variances of independent random variables from normal populations with variances of o = 10 and o? = 15 where nx = 25 and ny = 31, find P > 1.26.

Q: The table below shows the income (X) and expenditure (Y) data for 10 households. Please answer the…

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Q: Why was the variable “# of customer service representatives” dropped from the model?   Write the…

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Q: Given independent random variables with means and standard deviations as shown,     Mean SD X…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: The stem and leaf plot shows house sale prices over the last week in Florence for how much was the…

A: Stem and leaf plot.   The stems are listed in the left side of the vertical line and these numbers…

Q: Write the appropriate research hypothesis (in words not notation)

A: Here given ,  The mean attention span for a ten-year-old in the USA is 19.10 minutes with a standard…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.5 inches,…

A: From the provided information, From the provided information, Mean (µ) = 9.5 inches Standard…

Q: What is the coefficient of determination for Data Set​ B?   Full Data​ Set:    Data Set A Data Set B…

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Q: A manufacturing machine has a 5% defect rate. If 9 items are chosen at random, what is the…

A: Given that Sample size =9 Probability of defect rate =0.05  We have to find Probability that atleast…

Q: Two polls were conducted about the upcoming election for new governor. The first poll said that 45%…

A: It is given that the sample proportion (p1 hat) and margin of error (E1) for first poll are 0.45 and…

Q: In the mining industry coal is transported from the mine to the plant using hopper rail cars. The…

A: given data normal distributionμ = 74σ = 0.48

Q: About 6% of the population has a particular genetic mutation. 700 people are randomly selected. Find…

A: Given that  Probability of success p=0.06 ,q=1-p=0.94 Number of trials =700 X~binomial (n,p)

Q: There are 7 male and 3 female students. If the professor is picking 2 students at random…

A: Answer: -  Given,  7 male and 3 female students.                  Total = 7 + 3 = 10 students…

Q: A data distribution is given as X ~ U(0, 12). Group of answer choices   What is a?…

A: given dataX~U(0,12)

Q: Calculate a 90% confidence interval for pulse rate given that you sampled 10 people and found a mean…

A: given data=62σ=18normal distrubtion n=10 people CI=0.90α=1-0.90=0.10df=n-1= 10-1=9

Q: a. Complete the table for the Standard Normal Distribution. Region Area (-∞, - 3] 0.0013 0.13% (-3,…

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Q: A dairy farmer accidentally allowed some of his cows to graze in a pasture containing weeds that…

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Q: 8 Examine the formula for the chi-square statistic x². a. If two samples are identical, what is the…

A: The Chi-square test can be used to compare the distribution of a qualitative variable in one sample…

Q: poll used a sample of 100 randomly selected car owners. Within the​ sample, the mean time of…

A: Given: Sample size n = 100 Sample mean X = 7.18 Standard deviation s = 3.37 Significance level α =…

Q: Data collected on the discharge of the Colorado River and the speed are given in the table:…

A: mean of x X=sum/n X=183.3/10 X=18.34 Mean of y Y=158.79/10=15.879

Q: A random sample of size ʼn has been selected from a normally distributed population whose standard…

A: Introduction: The sample size is n, the population standard deviation is σ, and the population has a…

Q: children under five who came from a normally distributed population with a mean of 3500 grams and a…

A: Given that.   X~N( μ , ?)   μ=3500     , ?=200  , n=15   Z-score =( x - μ )/?

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 21 for the population…

A: given data  normal distribution σ = 2195% ci for μE = 5n= ?

Q: Find the area under the standard normal distribution curve between  =z −1.47  and  =z 1.34 .

A: It is needed to find the area under the standard normal distribution curve between z = –1.47 and z =…

Q: For -1.5 > Z < 1, the probability is

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Q: Why is it ethically important to control confounding variables? Only one answer A) Because risk is…

A: Confounding variables: The confounding variables are those variables which have an unwanted effect…

Q: 4.52 Random variables X and Y follow a joint distribution f(x, y) = = 2, 0< x≤y< 1, otherwise. 0,…

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Q: Suppose that the amount of time that students spend studying in the library in one sitting is…

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

Q: uick C Cafz Industry Council). What is the best point estimate of the percentage of motorcycle…

A: Given that  95% confidence interval is  (17.5% &lt; p &lt;20.6%) NOTE:- According to bartleby…

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 8 type A balls, 5 type B…

A: given data,8-type A balls 5- type b balls 7- type c balls =20  total balls

Q: 6. In how many ways 3 boys and 5 girls be arranged in a row so that all the 5 girls, are together?

A: Solution - total number of boys=3 Total number of girls=5

Q: default (not repay). The bank currently has 250 loans outstanding. (a) In order to use a binomial…

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Q: For fixed a, b E R consider the following 1-dimensional equation b - Yt 1-t dYt = Verify that dt +…

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Q: Births are approximately uniformly distributed throughout the year. They can be said to follow a…

A: GivenA random variable x~Uniform(a=0,b=52)f(x)=1b-a     ; a&lt;x&lt;bf(x)=150-0     ;…

Q: Determine the range of the following data:   13,32,31,21,24,36,43,67,64,58,62,63,72,83,52,69,81,77

A: Given data(x): 13,32,31,21,24,36,43,67,64,58,62,63,72,83,52,69,81,77

Q: Find the probability using the normal distribution:  P(1.55<z<1.67)

A: Z be a standard normal random variable. then Z ~ N(0,1)

Q: In Ventura County, the height measurements of ten-year-old children are approximately normally…

A: GivenMean(μ)=55.1standard deviation(σ)=3.7

Q: is a probability density function on a Sample space of (1, 3, 5, 5,73 P(1) = 0.34 P(3) = 0.19 P(5) =…

A: Given that following data : P(1)=0.34 P(3)=0.19 P(5)=0.23 P(7)=? First we will calculate P(7) then…

Q: The number of seconds XX after the minute that class ends is uniformly distributed between 0 and 60.…

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Q: Another company's sales increase by the same percent each year. This growth is...

A: Given The sale of the company increases by the same % each year.

Q: Consider a Geometric Distribution G(0.271) Compute P(5 trials needed) round your answer to the…

A: Probability(p)= 0.271 No. of trials (x)= 5

Q: Assume that a random variable is normally distributed with a mean of 1,200 and a variance of 310.…

A: GivemMean(μ)=1200variance(σ2)=310standard deviation(σ)=310standard deviation(σ)=17.60681686

Q: Question 15 Consider a Geometric Distribution G(0.0453) What is the standard deviation for the…

A: Given X~Geom(0.0453)

Q: Given below is the revenue that Tesco recorded ov location over the last five vears:

A: Year Number of stores UK &amp; ROI Revenue Central Europe Revenue Tesco Bank Revenue Total Revenue…

Q: Bees flap their wings an average of 200 times per second with a standard deviation of 10.5 flaps per…

A: From the provided information, Mean (µ) = 200 Standard deviation (σ) = 10.5 X~N (200, 10.5) Sample…

Q: Question 7 Suppose you have a fair dodecahedron dice (that means its 12 sided). The sides are…

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Q: Suppose that an IRS examiner correctly detects and flags 90% of all erroneous returns that he…

A: a) It is given that, the IRS examiner correctly detects and flags 90% of all erroneous returns that…

Q: A runner for team 1 can run a race in 54.6 seconds. Team 1 has running times with a mean of 52.1…

A: given data team 1 x1=54.6μ1=52.1σ1=2.09team 2x2=53.7μ2=51.2σ2=3.53we have to find z score  and and…

Q: According to a recent survey, 87% of students say that they do not get enough sleep. Assume the…

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Q: n the country of United States of Heightlandia, the height measurements of ten-year-old children are…

A: given data normal distributionμ=54.7σ=4.2P(52.8&lt;x&lt;54.9)=?

Q: Find the area under the standard normal distribution curve between =z0 and =z1.93 .

A: According to given question,  We have:-   z1= 0  and z2 = 1.93To find :-  P(z1&lt;z&lt;z2) Or…