Find lim X-13 2 12-x-25 x+13

Q: Answer the following to summarize the test of the hypothesis that birthdays are equally likely…

A: We have to test of the hypothesis that birthdays are equally likely during each season of the year…

Q: The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of…

A: Given data in the problem is Mean=98.25 SD=0.68  (a) From the emperial third rule  99.7% of the data…

Q: Assume the selling prices of homes in a particular community follow a normal distribution with a…

A: GivenMean(μ)=263100standard deviation(σ)=43200

Q: A population has a mean μ = 71 and a standard deviation a=18. Find the mean and standard deviation…

A: List of formulae :  Mean of sampling distribution of the sample means :  μx¯ =μ Standard deviation…

Q: Suppose the above bell curve (normal distribution) represents the voters and their viewpoints (the…

A: The bell curve represents the voters and their viewpoints such that the height of the curve…

Q: are randomly selected. The random variable represents the number of workers who are reducing the…

A: A survey asked 1000 workers, 10 workers are randomly selected.  Fifty six percent of those reduced…

Q: In a survey 1100 residents of London, 737 said they would carry a COVID passport.  Test the claim…

A: Givenx=737n=1100α=0.05claim is that the percentage of london residents who would carry a…

Q: a. The expected value of a sum of a finite number of random variables is the sum of the expected…

A: a)X1,X2...,Xn be finite number of random variable E(X1+X2+...+Xn)=E(X1)+...+E(Xn) Expected value of…

Q: Next question A research center claims that 29% of adults in a certain country would travel into…

A: a) Claim: 29% of the adults in a certain country would travel into space on a commercial flight if…

Q: 21-B Book Street Books sells about 1040 books each month. The circle graph displays the most popular…

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Q: Treat the number of months X after January 1 that someone is born as uniformly distributed from 0 to…

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Q: A study was conducted using 60 mobile network users, who volunteered to participate in the research…

A: Given that,  For Mobile network A, mean is x̄A= 8.2  Standard deviation is, sA= 5.9 For Mobile…

Q: Test the claim that the proportion of men who own cats is significantly different than 20% at the…

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Q: Suppose that the index model for stocks A and B is estimated from excess returns with the following…

A: Please find the explanation below. Thank you

Q: The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of…

A: Mean = 98.25 Standard deviation = 0.66

Q: Frequency 24 20 16 N Co 8 4 0 70.5 15 75.5 Prealgebra Exam Scores 16 80.5 14 85.5 Scores 11 90.5 4…

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Q: EXER 2.1 Let X and Y be random variables whose joint probability distribution function is given by…

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Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A: From the provided information, Sample size (n) = 14 Sample mean (x̄) = 4.5 Standard deviation (s) =…

Q: The following histogram shows the exam scores for a Prealgebra class. Use this histogram to answer…

A: Class intervals: From the given histogram, it is clear that the class intervals are: 70.5-75.5,…

Q: A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are…

A: Solution-: We have, For systolic data: 116,130,157,96,158,120,118,137,126,119 For Diastolic data:…

Q: A credit score measures a person's creditworthiness. Assume the average credit score for Americans…

A: a) Suppose the random variable X defines the credit scores.

Q: Robot 1 Robot 2 Robot 3 Robot 4 128 144 133 150 137 133 143 142 135 142 137 135 124 146 136 140 141…

A: Analysis of variance To test if the drying time is different among 4 different brands of paint…

Q: Choose one of the answer options below: D. Since it is close to normal with a smaller standard…

A: From the given information, A hypothetical distribution for a population of test scores has a mean…

Q: What does F stand for/ represent?

A: F test mean Ronald fisher test  It is one of the method to solve test statistics

Q: they had Banks: A poll institutions. A total of 159 adults said that they had a great deal of…

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Q: Assume that when adults with smartphones are randomly selected, 42% use them in meetings or classes.…

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Q: Find the probability and interpret the results. If convenient, use technology to find the…

A: Given dataμ=61000n=31x¯=58500σ=5700

Q: In an article about unusual allergies, a doctor explained that allergy to sulfites is usually seen…

A: Givenx=39n=600p^=xn=39600=0.065

Q: Water loss: Human skin loses water through evaporation, and, in general, damaged skin loses water at…

A: From the given information, the confidence level is 95%.

Q: margin of error = 0.025; confidence level = 95%; likely range=0.3 to 0.4 The required sample size is…

A: Given that  Margin of error =E =0.025 95% confidence level.

Q: Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the…

A: Given data A glass manufacturer finds that 1 in every 200 glass items produced is wrapped.

Q: What is the lower endpoint of a 95% confidence interval for the percent of students who like online…

A: Given Level of significance ɑ=0.05, x=92, n=134

Q: Test H0: σ12 = σ22 vs. Ha: σ12 != σ22  at 10% significance where σ1 is the standard deviation of the…

A: Hypothesis for variance ratio test  Null hypothesis: The variance ratio is equal to one OR  Null…

Q: In a sample of 50 people the average score was 380 with a standard deviation of 3.53. What is the…

A: Sample size (n) = 50Sample mean (x̅) = 380Standard deviations (s) = 3.53 Significance level (α) = 1-…

Q: (a)Consider a t distribution with 8 degrees of freedom. Compute P≥t1.16 . Round your answer to at…

A:

Q: 375 students at a university, 315 stated that they were nonsmokers. Based on this sample, compute a…

A: Given that  Sample size n =375 Favorable cases x =315 Sample proportion p^=x/n  =315/375 =0.84

Q: The mean age when smokers first start is 13 years old with a population standard deviation of 1.9…

A: Solution-: Given: μ0=13,σ=1.9,x¯=12.4,n=35,α=0.05 We want to find, (a) Correct hypothesis (b) Test…

Q: truct the 80% confidence interval for the difference p₁-P2 when x₁ = 40, n₁ = 80, x₂=20, and n₂ =…

A: Given X1=40 n1=80 X2=20 n2=60

Q: Fill in the blank. The states that if, under a given assumption, the probability of a particular…

A: Given data To fill in the blank of the statement The ____states that if under a given assumption the…

Q: Researchers from a certain country were interested in how characteristics of the spleen of residents…

A: Given n1=93, n2=107, x̄1=11.1, s1=0.9,  x̄2=9.9 , s2=0.8, level of significance ɑ=0.01

Q: 14. Exercise: Medical researchers conducted a study to determine whether treadmill exercise could…

A: According to the given information in this question We need to apply t test for two means

Q: What is the computed value of the test statistic? A. 4.381 B. -4.381 C. -4.898 D. 4.898

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Q: A paint manufacturer uses a machine to fill gallon cans with paint (1 gal = 128 ounces). The…

A: Given that M.E =0.5 ,alpha=0.1,σ=0.66 ( a) n=? ( b) 90% Confidence interval=?

Q: Visual Auditory 188 193 203 206 201 197 235 241 228 209 161 159 191 169

A: The given data is x(Visual) y(Auditory) 188 193 203 206 201 197 235 241 228 209 161…

Q: The lengths of pregnancies in a small rural village are normally distributed with: μ = 269 0 = 15 In…

A: Given Mean=269 Standard deviations=15 Z=99.7%

Q: The following histogram shows the exam scores for a pre algebra class. Use this histogram to answer…

A: we will observe the histogram properly

Q: Z is distributed with the standard normal distribution. Write answers to the nearest 4 decimal…

A: From the provided information, Z is distributed with the standard normal distribution. P (Z <…

Q: A random sample of 149 full-grown lobsters had a mean weight of 15 ounces. Assume that population…

A:

Q: In a​ poll,1200 adults in a region were asked about their online vs.​ in-store clothes shopping. One…

A: Givensample size(n)=1200p^=0.33confidence level=95%

Q: Fill in the blank. The states that if, under a given assumption, the probability of a particular…

A: According to the rare rule for inferential statistics, if the probability of a certain observed…