Conduct a test whether sex and age of stereo shop customers are independent @.05 level of significance.

Q: 6 classes of ten students each were taught using the following methodologies traditional, online and…

A: Formula : The mean sum of squares of treatment : MST = SST/df1

Q: 2. Edith has observed that the mean age of 18 youth volunteers in a barangay project is 17.5 years…

A: Formula : CI=point estimate ± ME

Q: In a survey of 526 US business, 400 indicated that they monitor employee's web site visits. Is there…

A: Given: Out of 526 US businesses, 400 indicate that they monitor employee's website visits. The…

Q: A researcher is conducting a study on the palliative care patients at a specific facility to…

A: Wilcoxon test is a non parametric test.

Q: According to an article in the February 1991 issue of Reader’s Digest, patients face a 1 in 20…

A: From the provided information, Patients face 1 in 20 chance of acquiring an infection while…

Q: Assume that adults were randomly selected for a poll. They were asked if they​ "favor or oppose…

A:

Q: A graduating education student is interested to know the engagement of senior high school students…

A: Stratified sampling: In stratified sampling the whole population is divided into two or more…

Q: Suppose a researcher wants to conduct research to determine if car rental company X is more…

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Q: 7) What is the value of (y)²¹? [

A: 7) The academic performance denotes y.

Q: You have exams in economics and chemistry coming up and 5 hours available for studying. will spend…

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Q: Kara, Sammy, Liz, and Mark each took many samples from the same population of students. The number…

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Q: 4. Using the regression line model, predict the revenue of the company in millions rounded off to…

A: The question is about linear reg. model Given :

Q: 1. In an attempt to assess the effect of the length of time spent in using social media to the…

A: a)

Q: 1. What is the area to the right of 1.5 under the t-distribution with 14 degrees of freedom? 2. What…

A: Given that  1. What is the area to the right of 1.5 under the t-distribution with 14 degrees of…

Q: of adults in the country who do not use the Internet. Based on the result, does it appear that A…

A: We have given thatn = 5009x = 755p̂ = x/n = 755/5009 = 0.1507

Q: 13. Given the list of the first quarter average of selected fifteen (15) Grade 11 Arts and Design…

A:

Q: The impact strength of these gears measured in foot-pounds is an important characteristic. A random…

A: Claim : The mean impact strength of gears from supplier 2 is at least 25 foot-pounds higher than…

Q: Conduct a hypothesis test by going through the six steps A college math teacher claims that the…

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Q: The data found below measure the amounts of greenhouse gas emissions from three types of vehicles.…

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Q: Tiple covariance Szy Sample formula ¸Σ₁=₁(x¡—x)*(Yi−y) n-1 Sxy=

A: The provided information is xi yi (xi-x¯) (yi-y¯) 33 6 (33-30.4)=2.6 (6-3.2)=2.8 31 4…

Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials,…

A: From the provided information, Sample size (n) = 6047 From which 150 developed the adverse reaction…

Q: Let x be a random variable that represents the batting average of a professional baseball player.…

A: Let X be the independent variable and Y be the dependent variable. Let X represents the batting…

Q: In 1970, adults who were 18 years or more had a mean systolic blood pressure (SBP) of 148 mm Hg.,…

A: Given that in 1970 adults who were 18 years or more had a mean systolic blood pressure (SBP) of 148…

Q: Answer in 30mins PLEASE The table below shows the list of COVID-19 vaccine prizes as of January…

A: Given Information: No. of observation=7Variable under study=Price (2 doses) in PesosSample…

Q: A distribution and the observed frequencies of the values of a variable from a simple random sample…

A: Given that: Distribution (p) Observed Frequency 0.125 19 0.1875 22 0.25 24 0.4375 31…

Q: c. The probability that the the child will be older than 5 years old? d. The probability that the…

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Q: What is the minimum required sample size to estimate an unknown population mean with confidence…

A: Confidence level of 72% Margin of error=11.2 Population standard deviationσ=136

Q: Does this data provide convincing evidence at the a = 0.01 significance level that the mean amount…

A: Given: Sample size, n=12 Sample mean, x¯=352.9Sample sd, s=2.19

Q: Two methods of drawing statistical inference are: A. Hypothesis testing and Estimation B.…

A: Guven that, Two methods of drawing statistical inference are: A. Hypothesis testing and Estimation…

Q: Q1/ A sample of 6 beams was selected the value of their deflections (x variable) and their weight is…

A: The provided information is  x  (Def.) y   (Weight) xy x2 7 12 84 49 6 8 48 36 8 12 96 64…

Q: According to the model, If the placement test score is 79, the course grade will be

A: The regression model to predict the course grade using placement test score is y=32.51+0.47x.

Q: Lance level to test the reasonable claim that births occur with 4 Calc At least two days have a…

A: It is needed to test, whether the reasonable claim that whether the births occur with equal…

Q: Two years ago 72% of household in a certain city regularly participated in recycling household…

A: We have given thatn = 900x = 674p̂ = x/n = 674/900 = 0.7489p = 0.72α = 0.10

Q: know the preference of Marikeños regarding vaccine brand for booster shot, the city health officer…

A: Give that, To know the preference of Marikeños regarding vaccine brand for booster shot, the city…

Q: In tossing a coin, how many ways are there of tossing 4 heads out of 7 tosses?

A: The number of tosses is 7.

Q: A weatherman stated that the average temperature during July in Baguio City is less than 20 degrees…

A: Given that A weatherman stated that the average temperature during July in Baguio City is less than…

Q: 36. Find mode from the following data. older griquon Classes 10- 20- 30- 40- 50- 60- 70-80-90- 59 69…

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Q: Assume that the two samples are independent simple random samples selected from normally distributed…

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Q: 1. Consider the following table. xi 4.0 4.2 4.5 4.7 5.1 5.5 5.9 6.3 256.73 Y₁ 102.56 113.18 130.1178…

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Q: Q1/ A sample of 6 beams was selected the value of their deflections (x variable) and their weight is…

A: Regression equaltion isin the form of y=a+bx where a=intercept and b=slope Using excel funvtion…

Q: Statisticians determined that the mortgages of homeowners in a city is normally distributed with a…

A: Given distribution is normally distributed. Mean=250000 Standard deviation=50000 X~N(μ=250000,…

Q: What is the minimum required sample size to estimate an unknown population mean with confidence…

A: Given: Confidence level=99%  Margin of error, E=5.25  Population sd, σ=35.2

Q: The Australian Red Cross states that 46% of the population have type O blood. a) Amongst 6 random…

A: According to our policy we can answer only first three part for remaining please repost the…

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets…

A: Given selling tickets for $9 each and will sell 500 tickets. one $2,000 grand prize three $200…

Q: Consider a constant function: f(x)= c; a ≤ x ≤ b Suppose that the function represents a…

A: Given info: f(x)= c; a ≤ x ≤ b the function represents a probability density function and c<1.

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: It is given that the confidence level is 0.95, the population standard deviation is 60.5 and the…

Q: Is the addition of SOUTH and URBAN statistically valuable (at the .05 significance level)?  How do…

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Q: Derive the Nash equilibrium of this game, including the prices, outputs and profit of the two firms.…

A: A duopoly is what is going on where two organizations together own everything, or virtually all, of…

Q: advertised claim for batteries for cell phones is set at 48 operating hours, with proper charging…

A: For the given data Perform Z test for one proportion

Q: Solve and sketch the problem.  Suppose that the amount of time it takes the Bureau of Internal…

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