will give thumbs up if answered both :) pls type your answer How many combinations can be formed from the letters of the word “COUNT” taking them a. 3 at a time? b. 2 at a time?

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Q: identify the sampling technique used

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Q: 3. Give combinatorial proof of a k (") = n () k-1

A: We know that the combination formula: C(n,r) = n!/(n-r)!r!

Q: Example Ten percent of items produced on a machine are usually found to be defective. What is the pr...

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Q: A researcher determines the BMI index of geriatrics from Tondo. Using 0.05 level of significance, is...

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Q: We have a distribution with a mean of ? = 78.0 and ? = 12.5. Find the raw score equivalents for the ...

A: We have given that.   X~N( μ , ?^2 )   μ =78 , ? =12.5   Z-score =( x - μ )/?   NOTE:- According to ...

Q: 13. Which of the following is an accurate definition of a Type II error? a. Rejecting a true null hy...

A: We will tell you which one is the correct choice.

Q: Suppose you are testing the hypotheses Ho: p =0.24 vs. p #0.24 with significance level a = 0.29. As ...

A: Given that α=0.05 Confidence level is 1-0.05=0.95. From the standard normal table, the critical valu...

Q: 4. Suppose it is known that 74% of men feel they are shorter than their ideal height. a. Describe th...

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Q: (d) Since the percentage for 4 or 5 children is twice the percentage 1or will be twice as high. 2O g...

A: Given: The observed ages of group of interns at local hospital were: {34,37,30,27,29,36,38} We need ...

Q: 1. Suppose you toss a fair coin two times; how many possible outcomes are there? a. 1 b. 2 c. 4 d. 8

A: We have given that the fair coin is tossed two times. The sample space is  S = { HH, HT, TH, TT }   ...

Q: Suppose that you repeatedly roll a pair of fair dice and keep track of the sum. What is the probabil...

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Q: An Intelligence test score for adults is normally distributed with a mean of 100 and population stan...

A: Solution Given: μ=100,σ=15 We find, P(a sample of 64 adults and find that the mean of this sample is...

Q: In a study, the sample is chosen by pulling 50 names from a hat What is the sampling method? O Simpl...

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Q: 6. AIRPORT DATA SPEEDS Listed below are the cellular data speeds (Mbps) from Sprint and Verizon meas...

A: Given : Sprint Verizon 13 38.5 30.4 55.6 15.2 22.4 2.4 14.1 2.7 23.1 2.1 24.5 0.8 ...

Q: On a hundreds chart: 1 2 3 4 5 6 7 8 9 10 ...

A: 4 lines below 23 will be 73 and 5 boxes to the right of 73 will be 79

Q: A null and alternative hypothesis are given. Determine whether the hypothesis test is​ left-tailed, ...

A: Given that  Null hypothesis H0 : μ=52 Alternative hypothesis H1 : μ≠52   We know that  Null hypothes...

Q: fllustration 17.39. In a Poįsson distribution, the probability P(x} for x=0 is 10 per cent. Find the...

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Q: Test the hypothesis that mean is less than 1500. Use the 1% level of significance. Would your conlcu...

A: Given: Score, X 1561 1554 1536 1531 1523 1518 1515 1511 1506 1500 1499 1...

Q: conduct an analysis and test of hypothesis My hypothesis is that STD rate in the state STD type 2020...

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Q: n = 0 PN (n) = {0.3 n = 1,2, 3 O therwise 0.1 Voice calls cost 25 cents each and data calls cost 40 ...

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Q: Kim is interested in studying the relationship between mortgage rates and median home prices. The d...

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...

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Q: Imagine that you are taking a multiple-choice quiz written in Icelandic and must guess randomly. Eac...

A: From the given information we find the probability.

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Q: For the population, 57% of people are searched if stopped.  For a sample of 26441 stops, what Z-test...

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Q: • Model 1 = Y; = Bo + B1Xli+ E;; • Model 2 Y; = Bo + B2x2i + Ej • Model 3 Y; = Bo + B1xli + B2x2i + ...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: The box plots below show how fast cars are travelling at a specific time of a day on highway I-5 and...

A: We have given that two box plot that showing how fast cars are travelling at a specific time of a da...

Q: 1. Draw 2 chips one-by-one without replacement from an urn that contains 14 red and 36 black chips. ...

A: Probability : Probability could be a field of arithmetic that deals with numerical descriptions of h...

Q: | Lunch Cart You want a sandlwich a Side oder, Ond a drind troma lunch Cort that offers Htiypes of S...

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Q: The random variable is the sum of the numbers on the dice. You roll three colored dice: 4 Give the r...

A: The outcomes for each of the die is {1, 2, 3, 4, 5, 6}.

Q: The proportion of all children that drew the nickel too small is:   Assume that this proportion is ...

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Q: What is the definition of a simple random sample? OA simple random sample is obtained through conven...

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Q: Use the information below to determine how many standard deviations from the mean will the following...

A: Given : μ=36.4032n=129σ=64.3382x¯=12.5719  

Q: Out of 27 students in a class, 8 major in Science. Find the probability that two randomly selected s...

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Q: Find the critical value z, necessary to form a confidence interval at the level of confidence shown ...

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Q: distributed with a standard deviation of 5.3 seconds. What changes the mean is how long it takes the...

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Q: Draw a pictograph to represent the data displayed in the table below. Choose whatever symbol you lik...

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Q: The number of patients needing a bed at any point in time in the pediatrics unit at Carver Hospital ...

A: Given Mean =19.2 Standard deviations=2.5

Q: Consider the following hypothesis test. Hoi H1- H2 = 0 Ha: H1 - H2 # 0 The following results are fro...

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Q: conducts experiments in which seeds from cherry tomatoes are exposed to a series of pulsations of ul...

A: We have given that  Sample size n=36 Population mean =12.7  Sample mean = 13.1 Standard deviation =1...

Q: 3. By selecting a smaller alpha level, a researcher is a. Decreasing the risk of a Type I error 3. b...

A: Given : By selecting a smaller alpha level, a researcher is

Q: S(e* + x° + e°) +, x° + e°) dx .

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Q: 4. You complete a hypothesis test using a = .05, and based on the evidence from the sample, your dec...

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Q: In Exercises 50-80, identify the class width, class midpoints, and class boundaries for the given fr...

A: Given data is Age(yr) of Best Actress When Oscar was won Frequency 20-29 31 30-39 34 40-49 ...

Q: An airline knows that the number of suitcases it losses per week is in normal distribution with mean...

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