The last student surveyed was active for 25 minutes. What percent of students were more active than the last student surveyed?

Q: The National Association of Realtors estimates that 23% of all homes purchased in 2004 were…

A: Given that  n=800 , p=23%=0.23 , q=1-p=1-0.23=0.77

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A: Null hypothesis provides a plausible explanation of the data. The alternative hypothesis is…

Q: Q19: Consider the following data: 3s, 12, s0, 49, 28, 41, 47 The 60-th percentile is (A) 47.4 (B)…

A:

Q: 5. Let x be a random variable that represents the level of glucose in the blood (milligrams per…

A: It is given that the mean is 85 and the standard deviation is 25.

Q: Which of the following interpretations is/are valid? I. A manager wants to predict the cost of…

A: Last option is correct Both I ans II

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Q: For a normally distributed random variable x with u = 100 and o = 16, use %3D technology to find…

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Q: Example 22.6 The following table gives the number of defects observed in 8 woollen carpets passed as…

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Q: Assume the data set described is normally distributed with the given mean and standard deviation,…

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Q: 9 of the students are girls. What 3. There are 50 students in a class, both boys and girls. percent…

A: It is given that Number of girls = 9 Total number of students = 50 Number of boys = 50 - 9 = 41

Q: A fast-food chain developed a new process to ensure that the orders at the drive-through are filled…

A: Given that  Sample size n =40 Favorable cases x =36 Sample proportion p^=x/n  =36/40 =0.9

Q: For males in a certain town, the systolic blood pressure is normally distributed with a mean of 110…

A:

Q: The correlation between anxiety and performance on complex task is r= -0.73. Which of the following…

A: Given that, the correlation between anxiety and performance on complex task is r= -0.73.

Q: If Y is a chi-square random variable with v degrees of freedom, then u = E(Y) = v and a = v(Y) = 2v.…

A: Given that  If Y is a chi-square random variable with v degrees of freedom, then we have to proof…

Q: b) Find the mean and the standard deviation of the times in the following table. Because the table…

A: Given information: 52, 51.08, 49.29, 48.88, 48.83, 48.65, 48.83, 48.25, 49.11, 49.41, 49.62 and…

Q: Given an actual demand of 69, a previous forecast of 64, and an alpha of .2, what would the forecast…

A: Given Actual demand=69 Previous forecast=64 Alpha=0.2

Q: The correlation between anxiety and performance on complex task is r= -0.73. Which of the following…

A: We have given the following statement about the correlation.

Q: Q3: price receivea ior the clocks depends on both the age of the clocks and the number of bidders at…

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Q: Q2: An urn contain three red balls ,two blue ball and five white balls, A ball is selected and its…

A: The question is based on a probability. Given : No. of red balls ( R ball ) = 3 No. of blue balls (…

Q: It takes an average of 8 minutes for blood to begin clotting after an injury. An EMT wants to see if…

A: Solution:- from given information claim:  if the average of 8 minutes will increase if the patient…

Q: The departure time of the 9:15 train from Kings Cross to Cambridge is claimed by the Service…

A: Note: As per the guidelines, in case of multiple questions, answer to first question will be…

Q: The average life of a electric rice cooker is 5 years, with a standard deviation of 1 year. Assume…

A: Obtain the probability that the mean life of a random sample of 9 machines falls between 5.7 and 8.1…

Q: • DIRECTION: State the null hypothesis and alternative hypothesis that should be used to test each…

A: The tail of the test is determined as The test is left-tailed if alternative hypothesis contains…

Q: Consider all samples of size 2 from this population. 9 8 10 12 14 15 1. Lists all samples and…

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Q: 2. Write the Kolmogorov backward equations for a birth-and-death process with birth rates di = 3(i +…

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Q: The lengths (in minutes) of a random selection of popular children's animated films are listed…

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Q: Claim: The mean pulse rate (in beats per minute) of adult males is equal to 68.7 bpm. For a random…

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Q: determined that demand during replenishment lead-time is normally distributed with a mean of 25…

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Q: From the different Measures of Central Tendency, can we conclude that mean was used to solve for the…

A: Please find the explanation below. Thank you.

Q: 1. A coach is trying to see if a new had been using. Design a contro program.

A: In a controlled experiment all the variables in the study remain to be constant except one variable…

Q: The following data represents the age of 30 lottery winners. 23 35 35 36 36 37 42 47 47 47 50 51 51…

A: Given that

Q: In your video player, you have a playlist that consists of 5 distinct anime series and each series…

A: Given that thee are 5 Demon Slayer, 4 Black Clover, 7 One Piece, 10 Attack on Titan and 12 Fullmetal…

Q: A psychologist is interested in the mean IQ score of a given group of children. It is known that the…

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Q: State the Result: A hypothesis test was conducted at the alpha = 0.1 level of significance. The test…

A: Givenα=0.1p-value=0.033

Q: 0.0 Find the mean and standard deviation for the distribution.

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY

Q: 1. A study of 50 students showed that their average grade in science is 95. The standard deviation…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Submit your excel solutions for each of the following problems. 1. Find the polynomial of degree…

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Q: An entrepreneur commissions research to evaluate the relationship between logarithm of sales in her…

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Q: Determine the null and alternative hypotheses. *Determine the appropriate critical value. Select…

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Q: If n=24, (x-bar)=D34, and s=9, construct a confidence interval at a 95% confidence level. Assume the…

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Q: Jim  figures that it takes an average of 17 minutes with a standard deviation of 3 minutes to drive…

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Q: Find the mean and the population standard deviation of the race times in the following table. 49.4…

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Q: Mr. Remo is planning to buy a car from two stores. From the first store, there are 4 models, 4…

A: Here use counting principle

Q: Dra Let X be a normal random variable with mean 3 and yariance 3) and Y be another random variable…

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Q: A researcher is using a panel data set on n = 1000 workers over T = 10 years (from 2001 through…

A: The variables under study are - worker's earnings, gender, education, and age. The regression of…

Q: 4- The number of element in the sample space when you flip 3 coins together 2 b) 8 c) 6 d) 12

A: Find the sample space when we tossed 3 coins

Q: A light bulb manufacturer wants to compare the mean lifetimes of two of its light bulbs, model A and…

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Q: Use the frequency distribution shown below to construct an expanded frequency distributio. High…

A: Given frequency distribution is  Class 20-30 31-41 42-52 53-63 64-74 75-85 86-96 Frequency 18…

Q: Type Weight Price Klein Reve V Road 20 1800 Giant OCR Composite 3 Road 22 1800 Giant OCR 1 Road

A: Brand and Model Type Weight Price Klein Reve V Road 20 1800 Giant OCR Composite 3 Road 22 1800…