Group A is a sample of 15 people Group B is a sample of 15 people What are the degrees of freedom in group A?

Q: A real estate agent suggests that the median rent for one- bedroom apartment in a community is $325…

A: The following data has been given: 420,460,514,405,320,435,350,531,450,560,309,325

Q: 6 Σ 1 i=1 -

A: Given that  ∑xi= x1+x2+x3........

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Q: se the Normal model​N(95​,15​) for the IQs of sample participants.​a) What IQ represents the…

A: The mean is 95 and the standard deviation is 15.

Q: Problem 1: Figure 1 shows the histogram of the current salary (in thous. USD) of a sample which…

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

Q: 1.  Assume that thermometer readings are normally distributed with a mean of 0 degrees C and a…

A: Given that  μ = 0 degree celsius ? = 1.00 degree celsius By using standard normal distribution we…

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Q: 3a. (Data calories.txt) Refer to the caloric intake description. We are interested in determining…

A: Given information: Treatment 1 Treatment 2 435.16 414.61 338.99 503.46 488.73 425.22…

Q: A box contains a total of 9 tickets. One ticket has 10 written on it, four tickets have -1 written…

A:

Q: 2. For the following information on a data set: Measurement Class .00-.75 75-1.50 1.50-2.25…

A: The given frequency distribution table is,

Q: 16 25 38 46 50 65 109 123 143 131 201 184

A: The given data is  x y 16 109 25 123 38 143 46 131 50 201 65 184 71 199 29 132…

Q: The government of a town needs to determine if the city's residents will support the construction of…

A: The government of a town needs to determine if the city's residents will support the construction of…

Q: At Roxbury Community College, 7 out of every 10 students take introduction to Statistics. If there…

A: given data  N = 2500 students total in college  7 out of every 10 students take introduction to…

Q: Assume there is a certain population of fish in a pond whose growth is described by the logistic…

A: The starting population is given as p0=100 The growth is 240% per year and the growth rate is 2.4…

Q: For a standard normal distribution, find: P(-0.42 < z < 1.77)

A: GivenP(-0.42&lt;z&lt;1.77)

Q: If I have a sample of 25 people what is my T-threshold for a two-tail test and an alpha of 0.05…

A: Given: Sample size (n)=25 Level of significance α=0.05%

Q: The smallest number which is considered a usual value for the Random Variable can be found by "Mean…

A: Given,n=170p=0.875A random variable X~Binomial(n=170 , p=0.875)

Q: ected identical parts eries cannot functio ectronic produc che parts fail. When the life span of…

A:

Q: find the five-number summary and draw the box plot for the following data set: (Hint: Min Q1 M Q3…

A: find the five-number summary and draw the box plot for the following data set  12 5 7 15 12 13 21 26…

Q: Mixtastic's Founder-CEO is discussing the timing of the launch of its mix-at-home cocktail kit with…

A: Given: P(survival of a year) = 0.80 Amount earned if earning start immediately = $100K per year    .

Q: A sample of n = 4 scores has a variance of s2 = 64. What is the estimated standard error for the…

A:

Q: For a confidence level of 98%, find the critical value for a normally distributed variable. The…

A: The objective is to find the critical value for a normally distributed variable at confidence level…

Q: A New York Times article noted that the mean life span for 35 male symphony conductors was 73.4…

A: The test hypotheses are: Null hypothesis: H0: μ = 69.5 years Alternative hypothesis: H1: μ &gt; 69.5…

Q: For the given data set, find the: a) mean b) median c) mode

A: Given information: 27,57,34,62,27,54,27,41,43,41. a) Mean: Mean=sum of valuesNumber of values…

Q: When people smoke, the nicotine they absorb is converted to cotinine, which can be measured. A…

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Q: Suppose you have an SRS of 23 observations and you compute: x = 42, s = 2.10 What is the margin of…

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Q: According to a 2009 Reader's Digest article, people throw away approximately 11% of what they buy at…

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Q: A car company says that the mean gas mileage for its luxury sedan is 21 mpg. believe the mean gas…

A:

Q: p=0.95H0:p=0.95 H1:p>0.95H1:p>0.95 Your sample consists of 87 subjects, with 79 successes.…

A: Given data,p=0.95No of subects n=87No of success x=79p'=xn=7987=0.89test statistic z=?

Q: Data on investments in the high-tech industry by venture capitalists are compiled by a corporation.…

A:

Q: 1. Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: f(x,y) y=1 y=2 y=3   Total x=1 0.10 0.05 0.02 0.17 x=2 0.10 0.35 0.05 0.5 x=3 0.03 0.10…

Q: Assume Z is a random variable with a standard normal distribution and b is a positive number. If P(Z…

A: Given,P(Z&gt;b)=0.2

Q: State Pr(a) ra Pr(b) rb 1 0.2 10% 0.25 12% 2 0.6 15% 0.40 20% 3 0.2 20% 0.35 18%…

A:

Q: In one city, 32.4% of the 5000 students surveyed said they eat at the school cafeteria. Find the 95%…

A:

Q: 1. A normal distribution has a mean m = 58 with s= 2. What is the probability of selecting an…

A: As per our guidelines we are suppose to answer only one question1)GivenMean(m)=58standard…

Q: According to a study of political prisoners, the mean duration of imprisonment for 32 prisoners with…

A: Given that  Mean duration of the 32 prisoners with chronic post traumatic stress (PTSD) was 30.6…

Q: Travelers who have no intention of showing up often fail to cancel their hotel reservations in a…

A: The sample mean is calculated as follows: x=∑xn  =18+16+16+16+14+18+16+18+14+1910  =16.5

Q: You measure 24 textbooks' weights, and find they have a mean weight of 45 ounces. Assume the…

A: 24 textbooks weights measured with mean is 45; n=24  x=45 The population standard deviation is 6.4;…

Q: tudies if age correlates with the average number of hours of sleep, so she selected a random sample…

A: Given: sample size(n)=10   Age(x) Hours of sleep(y) xy x^2 y^2   8 8 64 64 64   15 8 120 225…

Q: 3. The spinner for a child's board game has five equally-sized colored regions, one of which is…

A: The answer is attached below,

Q: 1 c) A population is the collection of all items of interest in a particular study. True False

A: Given Statement : A popl. is a collection of all items of interest in a particular study

Q: Is a degrees of freedom? -2.447 2.571 1.96 -2.015 1.943 will a 32

A:

Q: If you are willing to run out of cash for 10% of the days, how much cash should you put in the ATM…

A: c) From the information, observe that the following ascending ordered data. 55, 62, 63, 64, 68, 69,…

Q: A car company says that the mean gas believe the mean gas mileage is lower than this and find that a…

A: A car company claims that mean gas mileage of its luxary sedan is 21mpg, α =0.10

Q: A county with a large population need to know what the average income is for tax purposes. A simple…

A: Interquartile range: Interquartile range is used to describe middle 50% of the data. It can be…

Q: A 95% confidence interval for the population mean from months to months. (Round to one decimal place…

A: According to a study of political prisoners, the mean duration of imprisonment for 31 prisoners with…

Q: J 2 Illustrate the value of Bayesian Analysis: Using probability, explain why is it so much more…

A: Let,E1 = Person from under-represented ethnic group population E2= Person from an over-represented…

Q: manufacturing company has conducted a time study for ten cycles of a job. the job has five elements…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: a. Use the one-mean t-interval procedure with the sample mean, sample size, sample standard…

A: (a) Obtain the 90% confidence interval for the population mean. The 90% confidence interval for the…

Q: Correlation coefficients in the range of +0.81to1 indicate that there is very high correlation. True…

A: Sol: True :-