SAMPLING TECHNIQUE In a population of 30,000 Chinoy, the researcher wants to select 315 samples to be interviewed. If the researcher aims an 85% precision and wants to use the systematic sampling, the every k^th individual must be taken from the population. Find K.
Q: Determine the probability that a randomly selected customer rated his or her stay as Excellent.…
A: Given Rating Men Women Total Excellent 4 10 14 Good 19 13 32 Fair 17 7 24 Poor 7 4 11…
Q: Linda must choose a shirt, a pair of pants, and a cap for today's outfit. She has 2 shirts, 2 pairs…
A:
Q: he instructor recorded the exam scores of 64 students in a class based on how many hours they spent…
A: Given that 71 to 80 81 to 90 91 to 100 1 hour 7 5 2 2 hours 8 3 3 3 hours 3 5 8 4…
Q: A sample of 24 observations is taken from a normal distribution with unknown mean. The sample mean…
A: Given that x̄ = 11.7 , ? = 2.8 , n = 24
Q: Question 33, 12 of the top 20 finishers in the 2009 PGA championshop at Hazeltine National Golf Club…
A: Given Information: 12 of the top 20 finishers in the 2009 PGA championship at Hazeltine National…
Q: Calculate the standard score of the given X value, X = 66.5, where μ = 73.3 ando = 75.6. Round your…
A: Solution-: Given: X=66.5,μ=73.3,σ=75.6 We want to find standard score =?
Q: One manufacturer has stated in the technical data of their bolts that the bolts are between 2.77…
A: Given that Mean = M = 2.79 , Standard deviation = SD = 0.013
Q: Winning the jackpot in a particular lottery requires that you select the correct two numbers between…
A: select correct two numbers between1 and 51and in saperate drawing, select correct single number…
Q: City Hall wishes to learn about the rate of parking mater use. They choose 8 Downton blocks at…
A: In the given research problem, there are 8 city blocks chosen at random. Within each block, there…
Q: and ox o from the given parameters of the population and sample size μ=72, o=19, n = 33 Determine Px…
A: given data μ = 72σ = 19n = 33we have to find mean and sd of sampling distribution
Q: 'f A and B are two mutually exclusive events with P(A) = 0.2 and P(B) = 0.7, find the following…
A: From the provided information, A and B are mutually exclusive events with P (A) = 0.2 and P (B) =…
Q: A wallet contains 10 chips. 3 of the chips are red, 5 of the chips are white, and 2 of the chips are…
A:
Q: Interpret the correlation matrix below. Refer to page 86-87 in your textbook to determine the…
A: The given Correlation matrix is:
Q: 3 49+w² A random noise X(t) having power spectrum Sxx (@)=- which h(t)= u(t)te". The network…
A:
Q: A biologist has studied a particular tropical insect and she has discovered that its lifespan is…
A: Given that: Population mean, μ=72 Population standard deviation, σ=8
Q: From the given frequency distribution table, what is the frequency of D3 class? Weights No. of…
A: Given frequency distribution data is; Class (Weights) Class boundaries Frequency(f) (no. of…
Q: A fish shop owner recorded the daily turnover of his 300 trading days as shown in the frequency…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: A fair coin is tossed until either a tail occurs or a total of 4 tosses have been made, whichever…
A: Given: A fair coin is tossed until either a tail occurs or a total of 4 tosses have been made,…
Q: A student takes an exam containing 18 true or false questions. At least 12 correct answers are…
A: Obtain the probability that he will pass. The probability that he will pass is obtained below as…
Q: In a scanning process, the number of misrecorded pieces of information has a Poisson distribution…
A: As Prof. N. G. Das said "A discrete random variable X is said to follow Poisson distribution with…
Q: values (ace through king for each suit). When calculating the following probabilities, be sure to…
A: We know that There are 52 cards in the deck divided into two colour i.e red(26) and black (26).…
Q: The paint used to make lines on roads must reflect enough light to be clearly visible at night. Let…
A: From the provided information, The hypotheses for this test are as follow: H0: µ = 20 Ha: µ > 20
Q: 6.6-4. Find the Rao-Cramér lower bound, and thus the asymptotic variance of the maximum likelihood…
A:
Q: Calculate the standard score of the given x value, x = = Answer How to enter your answer (opens in…
A: Given,x = 50.5, μ = 50.6 and σ = 3.8
Q: Estimate the mean score from the distribution above (round to 2 decimals if necessary) Freque ncy 10…
A: score mid point(xi) frequency (fi) fixi 60-64 62 10 620 65-69 67 6 402 70-74 72 2 144 75-79…
Q: An engineer working for a tire manufacturer investigates the average life of a new material to be…
A: Givensample size(n)=13Mean(x)=60897.9 standard deviation(s)=2734.8
Q: Suppose the time it takes a data collection operator to fill out an electronic form for a database…
A: given data X~U(1.2,2.3) uniform distribution f(x) = 1b-a = 12.3-1.2 = 11.1
Q: Which of the following is not a correct statement about a probability Select one: a. Total…
A: we have to find incorrect statement about probability
Q: ng the Y data (i.e., estimate of the error on your Y data)? Calculate the parameter…
A: X1 Y -1 5.95 -1 5.6 -1 5.44 0 6.22 0 5.85 0 5.61 1 8.36 1 7.3 1 6.43
Q: Find the area under the standard normal curve to the left of z = -1.9 and to the right of z = -1.82.…
A: z has standard normal distribution. where mean=0 and standard deviation=1 i.e. z~N0,1
Q: The city of Fairview runs a swim league for teens aged 13 to 17. Suppose a swimmer from the league…
A: x p(x) 13 0.28 14 0.21 15 0.18 16 0.18 17 0.15
Q: d. What is the probability that four or more of the LED light bulbs are defective? The probability…
A:
Q: ep 2 of 3: Find the first quartile. mswer How to enter your answer (opens in new window) Key: 310 =…
A: Given that From Stem and Leaf plot the data are 30 , 30 , 32 , 36 , 37 , 38 , 44 , 45 , 45 , 46 ,…
Q: Find the area under the standard normal curve between the given z-values. Round your answer to four…
A: z has standard normal distribution. where mean=0 and standard deviation=1 i.e. z~N0,1
Q: Baby weights: The weight of male babies less than 2 months old in the United States is normally…
A: Given Information: Mean μ=11.8 Standard deviation σ=3.1
Q: You are interested in knowing the number of crimes that a sample of active offenders engaged in the…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Simulate the solution of the given problem using Excel such that when the given four data points (x…
A: Equation is y^ = k*xm We simplify this equation in linear form. Taking ln on both the sides, ln y^ =…
Q: NeverReady
A:
Q: n a factory the 95% confidence interval of the mean net weight of packed coffee was estimated based…
A:
Q: A student has 7 books on his deck. In how many different ways can he select a set of 3?
A: student has 7 books on his deck. No. of different ways to select set of 3 = ?
Q: Types of Data: For each of the following variables, classify them as quantitative or qualitative. If…
A: a) The variable is colors of M&Ms.
Q: A researcher conducted a survey that asked 100 people which sport they liked best: baseball,…
A: We know that, Probability of any event can be calculated using the formula, P(event)= no. Of that…
Q: The desired percentage of SiO₂ in a certain type of aluminous cement is 5.5. To test whether the…
A:
Q: Intelligent life was found in space and an anthropologist was sent to get to know these…
A: let, X be the random variable that denotes lengths of aliens Y be the random variable that denotes…
Q: The following data set lists the mid-term scores received by 50 students in a Quantitative Methods’…
A: The entire set is divided into four equal sections using Quartiles. The first, second, and third…
Q: a. P(B or C)= (Round to two decimal places as needed.) b. P(B or D)= (Round to two decimal places as…
A: It is given that the data in contingency table. Note: According to Bartleby expert guidelines,…
Q: If z = 1.75, SD = 3.03, and M = 19.75, what is X?
A: given data Z = 1.75 s = 3.03 M = 19.75 x = ?
Q: Consider a set of data in which the sample mean is 94.2 and the sample standard deviation is 7.8.…
A: Given that Sample mean=94.2 Sample standard deviation =7.8
Q: QUESTION 14 Calculate the GPA for the student with these grades Credits 3 1 3 6 4 Letter Grade A A A…
A:
Q: Example: A box contains 12 colored balls, of which 5 are white, 4 are black, and 3 are red. Sample 7…
A: The following solution is provided below :
SAMPLING TECHNIQUE
In a population of 30,000 Chinoy, the researcher wants to select 315 samples to be
interviewed. If the researcher aims an 85% precision and wants to use the systematic
sampling, the every k^th individual must be taken from the population. Find K.
Step by step
Solved in 2 steps
- AncestorsA person has two parents, four grandparents, eight great-grandparents, and so on. What is total number of a person's ancestors in 15 generations?Find the positive geometric mean between 4 and 64.About 3% of the population has a particular genetic mutation. 700 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 700. (Round to 2 decimal places if possible.)
- uppose you want to estimate the percentage of tweets on Twitter that are related to COVID-19 in January 2020. It is impossible for you to read all tweets on Twitter so you use a random tweet picker with a raffle method to select 200 tweets from each day in January. Among those tweets selected, only 2% is related to COVID-19. 1 - The population of interest is a) All tweets on Twitter in January 2020 b) Any tweets that are related to Covid-19 c) The 200 tweets selected 2 - The sample size is a) 200 b) The total number of tweets related to Covid-19 c) The total number of tweets in January 2020 3 - The population parameter we are interested in is a) Total count of tweets about Covid-19 among all tweets in January 2020 b) 2% c) The proportion of tweets about Covid-19 among all tweets in January 2020 4 - This sampling method is called a) Clustering b) Multi-stage sampling c) Simple Random SampleWhen presented with prints from the same individual, a fingerprint expert will correctly identify the match 8686% of the time. Consider a forensic database of 12001200 different pairs of fingerprints, where each pair is a match. Complete parts a and b below. Question content area bottom Part 1 a. What proportion of the 12001200 pairs would an expert be expected to correctly identify as a match? The proportion of the 12001200 pairs that an expert would be expected to correctly identify as a match is enter your response here. (Round to four decimal places as needed.) Part 2 b. What is the probability that an expert will correctly identify fewer than 10801080 of the fingerprint matches? The probability that an expert will correctly identify fewer than 10801080 of the fingerprint matches is enter your response here. (Round to four decimal places as needed.)One thousand lots of product, each consists of 20 items. Randomly take out 3 in a lot and reject the lot if nonconforming parts are found. At last, there are 850 lots out of the 1000 lots are accepted. Estimate the average quality level of these products.
- An auditor decided to use systematic sampling to select a sample from the 6,000 expense reimbursement forms sent to HR. What is the maximum size of the sample she can obtain if she selects every 30th expense form, submitted in chronological order? Maximum sample size:A big concert was held at the Bowl. Men and women had to go through separate lines to enter. The turnstile on the female entrance showed a total count of 1595 females, but the males turnstile was broken. A sample was taken from the 200 seats in section A, which showed 74 males in the section. Use the male count from section A to estimate the total number of people attending the concert. (Assume none of the seats were empty.)About 2% of the population has a particular genetic mutation. 900 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 900. About 2% of the population has a particular genetic mutation. 500 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 500.
- The sales manager of a large automotive parts distributor wants to estimate the total annual sales for each of the company’s regions. Five factors appear to be related to regional sales: the number of retail outlets in the region, the number of automobiles in the region registered as of April 1, the total personal income recorded in the first quarter of the year, the average age of the automobiles (years), and the number of sales supervisors in the region. The data for each region were gathered for last year. For example, see the following table. In region 1 there were 1,739 retail outlets stocking the company’s automotive parts, there were 9,270,000 registered automobiles in the region as of April 1, and so on. The region’s sales for that year were $37,702,000. constant outlet automobile reg income age bosses 37.702 1,739 9.27 85.4 3.5 9 24.196 1,221 5.86 60.7 5 5 32.055 1,846 8.81 68.1 4.4 7 3.611 120 3.81 20.2 4 5 17.625 1,096 10.31 33.8 3.5 7 45.919 2,290 11.62 95.1…A medical researcher wishes to try three different techniques to lower cholesterol levels of patients with high cholesterol levels. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, each subject's cholesterol level is recorded. Test the hypothesis that there is no difference among the means. Use a= 0.05Suppose a sample of 349349 suspected criminals is drawn. Of these people, 9494 were captured. Using the data, estimate the proportion of people who were caught after being on the 10 Most Wanted list. Enter your answer as a fraction or a decimal number rounded to three decimal places.
