A class of eleven people received the test scores shown below, sorted by score. 32 51 69 73 74 75 82 89 93 98 100 Find the median. 68 69 75 93

Q: Explain the differences between x-bar and R-charts. How can they be used  together and why would it…

A: X-bar and R-chart given

Q: Find the value of A' and B' Prove that, (A\B) U (B\A) U (ANB) = AUB. Find the value of A x (BUC)'

A: (i) A' =U-A=1,2,3,4,5,6,7-1,2,3=4,5,6,7 B'=U-B=1,2,3,4,5,6,7-2,4,6=1,3,5,7

Q: Use this to predict the number of situps a person who watches 13 hours of TV can do (t

A: The regression equation is given by y = -1.153x + 39.487

Q: Which of the following variable is ordinal? A. Nationality

A: An ordinal variable is a categorical variable for which the possible values are ordered. Ordinal…

Q: Rejecting a correct null hypothesis is a type I error. True False

A: true Rejecting the null hypothesis when its actually true

Q: orrelation function:

A: Given as, Rx 0=3, Rx ±1=2, Rx ±2=1, Rx l=0, l>2

Q: If a study determines the difference in average salary for subpopulations of medical engineers and…

A: It is given that difference in average salary for subpopulations of medical engineers and civil…

Q: 3- Let X₁, X₂,..., X₁ be a random sample from 1 =- — - —- (x - 0) ₁ x ≥ 0 f(x|0) = — - e-(x-0), Ө…

A:

Q: (b) If you conduct a hypothesis test at the 0.09 significance level and calculate a P-value of 0.13,…

A: It is given that  The null and alternative hypotheses are  H0: μ = 59.9 H1: μ > 59.9

Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

A: Given: About 41% of adults use their smartphones in meetings or classes. 15 smartphone users are…

Q: 9) Use a probability tree: 85% of Americans have dental insurance. Of those that have dental…

A: Here, P(dental insurance) =0.85 P(no dental insurance ) =0.15 P( regular check up| insurance ) =0.68…

Q: Assume that random guesses are made for six multiple choice questions on an SAT test, so that there…

A: Given: Number of trials n=6 Probability of success p=0.65

Q: About 12% of employed adults in the United States held multiple jobs. A random sample of 65 employed…

A: It is given that n=65 and p=0.12.

Q: A fitness center is interested in finding a 90% confidence interval for the mean number of days per…

A: The provided information is x¯=3.4σ=1.8n=242α=0.10The critical value is zc=±1.645 (from standard…

Q: For the Weibull distribution, as the scale parameter decreases: a. The Weibull is equivalent to the…

A: Given that the Weibull scale parameter is decreasing

Q: patient recovery time from a particular surgical procedure is normally and a standard deviation of 2…

A: According to the guide lines we solve first three subparts only when  we have given multiple…

Q: A random sample of 10 observations is selected from the first normal population and 8 from the…

A: We have given that Sample size (n1 ) = 10 Sample size (n2 ) = 8 Significance level (α) = 0.01

Q: a.  Calculate the allele frequencies b.  Calculate the genotypic frequencies  c.  Carry out a…

A: Frequency is the count or number of times an observation happen. Chi square test are used to…

Q: www.helpyourmath.com is an OER website to help students to save money on textbooks and homework…

A: The sample mean is 122 and the sample standard deviation is 17.

Q: The probability density of a random variable is (k > 0, 0 < x <∞0). f(x) = ax²e-kx Find (a) the…

A:

Q: A cafe´ serves four types of bread roll, and each roll contains one of four fillings. The…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: A newsletter publisher believes that 29% of their readers own a laptop. Is there sufficient evidence…

A: Let p be the proportion for readers own a laptop  Given p=29%=0.29, level of significance ɑ=0.05

Q: According to a company's website, the top 10% of the candidates who take the entrance test just been…

A: 10% of candidates take entrance test The reported mean and standard deviation is 69 and 8 μ=69σ=8

Q: Contingency Tables and Conditional Probability: Homework and Passing a Course A teacher categorized…

A: Given data is   Completed HW Did not complete HW Total Passed the course 27 8 35 Did not pass…

Q: A study conducted at the University of Denver investigated whether babies take longer to learn to…

A: Given that a study conducted at the University of Denver Investigated whether babies take longer to…

Q: ssume that human body temperatures are normally distributed with a mean of 98.19°F and a standard…

A: Given that Mean=98.19∘F Standard deviation =0.62°F

Q: A radio device consists of 1000 electronic elements. The probability of nonoperation for one element…

A: Assuming that the random number X of non operating elements obeys poisson's law…

Q: i. a) Independent random samples from different brands of recently produced alkaline batteries were…

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

Q: predicting Al Ain secondary school students’ mental health scores via their scores in the life…

A: Given: Student Mental health score out of 50 Life- satisfaction score out of 100 1 40 80 2…

Q: In performing the following test, a statistician found z = 1.75. Q5. Find the p-value of the test…

A: Given,H0:μ=600Ha:μ&lt;600Test statistic(Z)=1.75

Q: If a new car has, on average, 25 minor defects, what is the probability that the next new car will…

A: ANS GIVEN                 average(λ) =25 minor                      find p(x=25)  = ?

Q: ion l

A: X Y 0 -1.5 1 2.3 2 9 3 23.2 4 42.3 The equation is y=a0+a1x+a2x2 and the normal…

Q: If the US population was 329.5 million in 2020, what percentage of the population was incarcerated…

A: Answer:

Q: e dotplot shows the body mass index (BMI) for 133 randomly surveyed people from a tain country. A…

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Q: From a lot of 100 items, of which 10 are defective, a random sample of size 5 is selected for…

A:

Q: The term "Freshman 15" refers to the claim that college students typically gain 15 lb during their…

A: Formula : Z =(X - μ)/σ

Q: summarizes the age-related information they collected: Age Number of Customers 60 65 61 72 64 88 94…

A: Age number of customers &lt;20 65 20-29 61 30-39 72 40-49 64 50-59 88 &gt;=60 94 Total…

Q: From a lot of 100 items, of which 10 are defective, a random sample of size 5 is selected for…

A: here given ,  there are 100 items in lot , of which 10 are defective  random sample of size 5 is…

Q: If Xbar=93​, σ=13​, and n=62​, construct a 99​% confidence interval estimate of the population​…

A: Given that  Sample size n=62 Sample mean =93 Population standard deviation =13

Q: Video: What is the Margin of Error? Video: When to Use z-test or t-test? For a normal distribution,…

A: Given that  Sample size n =31 Sample standard deviation =2 99% confidence.

Q: Points: 0 of 1 Use the given information to find the number of degrees of freedom, the critical…

A: Given  N=28 S=0.24 Confidence level=80% We need to find the critical chi-square  value and…

Q: DeAndre and Jonah began arguing about who did better on their tests, but they couldn't decide who…

A: GivenDeAndre earn in science=81.2Jonah earn in Art History=61.9For science Mean(μ)=72.2standard…

Q: The first quartile is. (Type an integer or decimal rounded to one decimal place as needed.)

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.2 and a standard…

Q: # of Siblings Frequency Relative Frequency Cumulative Frequency 0 1 40 0.1714 36 2 39 3 52 4 43 a.…

A: It is given that the data in cross tabulation form. The total number of people or frequency is 210.

Q: 4.17. Which principle underlies the effectiveness of reliability control charting? a. The samples…

A: The objective is to identify which principle underlies the effectiveness of reliability control…

Q: Listed below are the heights (cm) of winning presidential candidates and their main opponents from…

A: Solution-: Let, X=President height and Y= Opponent height We have following table: X Y 192 180…

Q: FOMINO REMINGT Forty-one cities were researched to determine whether they had a professional sports…

A: Given  Surveyed data about 41 cities.we need to answer the corresponding questions.

Q: rce professionals concerning challenges they faced in the​ workplace, 319 said that employee​…

A: a)  We need to construct the 95\%95% confidence interval for the population proportion of human…

Q: g) Find the probability that the sample mean starting salary of the 32 randomly selected nurses is…

A:

Q: The measurement of the distance to a certain object is accompanied by systematic and random errors.…

A: