Identify the population of interest in this survey. What is the sample? Is 73.14% a parameter or a statistic?
Q: Determine the level of measurement of the variable below. Highest degree conferred (high school,…
A: Ordinal variable is categorical, where the variable has ordered categories and the distances between…
Q: A reviewer decides to interview viewers to see how they would rate a particular movie. The following…
A: Here given data about movie ratings And rating are not number ,but like…
Q: a) What percent of patients in the treatment group were pain free 24 hours after receiving…
A: Given Data: Pain Free: Yes Pain Free: No Total Treatment 10 33 43 Control 2 44 46 Total…
Q: Calculate the 3rd quartile, 9th decile and 46th percentile o the distribution
A: Quartile is the measure that divide the data into 4 parts with 3 points. Decile is the measure that…
Q: mean, median, mode, range, standard deviation and variance
A:
Q: In Exercise, we have provided simple data sets for you to practice the basics of finding measures of…
A: a) Range is the difference between highest and lowest values in the data set.From the provided…
Q: find 1st percentile for given data 12,1585,63,95,75,45,26,9,75,25,15,49
A:
Q: Determine whether or not this statement makes sense. Nielsen Media Research determined the…
A: Given statement is: Nielsen Media Research determined the precise proportion of all Americans…
Q: write an analysis for the data above and what does the p value mean?
A: From the given information we find the solution.
Q: find 1st percentile for given data 12,15,36,35,45,56,58,96,68,98,9,75,25,15,49
A:
Q: What is the difference between mean, median, and mode? Give examples?
A: Mean:The arithmetic mean (also called the mean) is the most commonly used measure of central…
Q: The test scores of 20 students are listed below. Find the 34th percentile
A: We have to find the 34th percentile from the given data set.
Q: A cyclist recorded the number of miles per day she cycled for 5 days. The recording were as follows:…
A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…
Q: find the test statistic and p value.
A: Given, The data on the number of games played in a yearly best of seven baseball championship series…
Q: Test Statistic Round to thousandths place.
A:
Q: What level of measurement is sport participation? Thanks!
A: Introduction: There are broadly 4 scales of measurement used in Statistics, that either categorize…
Q: Describe what you see in the attached scatterplot for a sample of 20 low birth weight infants.
A: Use the Excel and Calculate the Correlation Followings are the Steps to Calculate Correlation 1)…
Q: What percent of students earned an "A" grade of 90% or higher? TEST SCORES:…
A: Solution: The given data is 50, 60, 61, 63, 66, 67, 73, 82, 89 and 92. Total number of scores is 10.
Q: What shoe size is on the 90th percentile? *(Input the NUMBER ONLY, no other characters or units…
A:
Q: Identify the elements in the figure that show (a) the mean and (b) indicate a measure of variability…
A: The given figure shows the mean and variability of four Body tissues- Fin, Muscle, Blood and Plasma…
Q: What is the percentile rank of a student with a shoe size of 7"? (Input the rank, use whole numbers…
A: Arranging the digits in ascending order we get 5.76, 5.8 ,6.2, 6.2, 6.4, 6.75, 6.755, 6.9, 7, 7.17,…
Q: Is the 50th percentile a typical value? Explain which one is larger the mean or the median?…
A: Given a problem and a graph we have to write the answer of the problem and explain using the graph…
Q: Does the sample size have an effect on the mean of all possible sample means? Explain your answer.
A:
Q: 9. Another term for the 75th percentile is the: A. lower quartile B. 50th percentile C. average D.…
A: 10. answer:A. skewed to the left. explanation: When data are skewed left, the mean is smaller than…
Q: How to find the percentile
A: Solution-: Describe how to find the percentile?
Q: Mina is waiting in line at the Department of Motor Vehicles (DMV). Her wait time is in the 85th…
A: It is clearly given in statement that at Department of Motor Vehicles waiting line is Mina wait time…
Q: Referring to the data, how many regions are above the 80th percentile of the nominal wage? A. 3…
A: Percentile : A k-th percentile in statistics is a score below which a certain percentage k of scores…
Q: How do the sample mean and the population mean differ? What is the symbol for each type of mean?
A: Here we have to define How do the sample mean and the population mean differ? and What is the…
Q: Cebu Tech Corporation manufactures tablet screens. The following data give the numbers of tablet…
A: Given: 24, 32, 27, 23, 33, 33, 29, 25, 23, 36, 26, 26, 31, 20, 27, 33, 27, 23, 28, 29, 31, 35, 34,…
Q: Using the stemplot of annual precipitation (inches) below, determine the median, upper quartile,…
A: Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at…
Q: 45. What is the 75th percentile? a. 10 b. 11 С. 12 d. 13
A:
Q: a) Determine the 15th percentile. b) Determine the 35th percentile. c) Determine the 65th…
A: Our aim is to find the following : a) 15th percentile b) 35th percentile c) 65th percentile Now ,…
Q: The Bangor Humane Society tracks cat adoptions closely. They sample 54 people who looked at cats…
A: Sample proportion = x/n Here x = 36 and n = 54
Q: Determine whether the data is qualitative or quantitative? Mascots of professional basketball teams
A: Qualitative data The data which is characterizing something Is the qualitative. It is non numerical…
Q: nsumption level represents the 6th percentile? nsumption level represents the 17th percentile?…
A: Here it is given that - Mean (μ) = 2327 Standard deviation (σ) = 584.3
Q: To assess attitudes towards issues that affect the residents of a town, the town randomly chose 500…
A: Given data: Sample size (n) = 500 families Town received (x) = 370 completed surveys
Q: (a) What height represents the 95th percentile? (b) What height represents the first quartile?
A: Given: The z score corresponding to the 95th percentile, i.e., p=0.95, i.e., 95% of the area of the…
Q: Determine if the survey question is biased. If the question is biased, suggest a better wording.…
A: Here, the question is “why is eating vegetables good for you”. It already assumes that eating…
Q: Explain sample?
A: To Explain the sample??
Q: When the Standard Score = -2, what is the percentile of the raw score? O 2nd O 14th 16th 34th 84th
A: Given that, Standard score = -2
Q: A cyclist recorded the number of miles per day she cycled for 5 days. the recordings were as follows…
A: The 50th percentile of the data is the same as the median of the data. Calculate the median of the…
Q: Draw anything that represents the position, Be in decile, quartile, and percentile.
A: Decile Lets us draw a line and divide the line by 9 points such that each point are equidistant.…
Q: Calculate the 70th percentile of the data set shown
A: Given n=10 x 4.4 8.8 10.3 12 20.9 26.8 28 28.4 29.2 30
Q: Which distribution of ACT scores has the highest percentage of students scoring above 21.4? English…
A:
Q: Find the 36th percentile for this data.
A: Given Data values :38,24,32,18,25 Then to find 36th percentile?
Q: Using the sample data from the accompanying table, complete parts (a) and (b). E Click the icon to…
A: Researchers compute confidence and prediction interval for least square regression for different…
Q: The 77th percentile is O.
A: X~N(50 ,49)Let Q be the 77th percentile .P(X<Q) =0.77⇒P(X-507<Q-507) = 0.77⇒ϕ(Q-507) =…
Q: is the 95th percentile finish time, ? 95? (Round your answer to nearest tenth
A: To calculate the 95th percentile of a normal distribution, we used the formula as: X=μ+Zσ Where 'X'…
We know that
Population consist of all individual related to the study.
Sample is a part of population which represents the population.
Parameter is a measure or characteristics based on whole population.
Statistic is a measure or characteristics based on sample values.
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- Researchers at RTI International, an organization dedicated to healthcare research, designed a study to compare how many insured Americans are going to urgent care clinics versus the emergency room for COVID-19 testing based on health insurance status. They think people with private health insurance (e.g. Blue Cross Blue Shield) will be more likely to go to urgent care clinics compared than those with public health insurance (e.g. Medicaid) who would be more likely to go to the emergency room for COVID-19 testing. They plan to take a random sample of urgent care clinics and emergency rooms in Massachusetts to test their hypotheses. Researchers at RTI International, an organization dedicated to healthcare research, designed a study to compare how many insured Americans are going to urgent care clinics versus the emergency room for COVID-19 testing based on health insurance status. They think people with private health insurance (e.g. Blue Cross Blue Shield) will be more likely to go…Researchers at RTI International, an organization dedicated to healthcare research, designed a study to compare how many insured Americans are going to urgent care clinics versus the emergency room for COVID-19 testing based on health insurance status. They think people with private health insurance (e.g. Blue Cross Blue Shield) will be more likely to go to urgent care clinics compared than those with public health insurance (e.g. Medicaid) who would be more likely to go to the emergency room for COVID-19 testing. They plan to take a random sample of urgent care clinics and emergency rooms in Massachusetts to test their hypotheses. What is the independent variable? What is the dependent variable? What are the hypotheses?In many colleges, educators are changing their approach to instruction from a “teacher/lecture-centeredmodel” to a “student-centered model” where students learn in a laboratory environment in which lectureis deemphasized and students can proceed at a pace suitable to their learning needs. In once schoolwhere this model was being introduced, of the 743 students who enrolled in the traditional lecture model, 364 passed; of the 567 in the student-centered model, 335 passed. Use a 0.05 level ofsignificance to test the claim that student-centered model results in a higher pass rate than the traditionalmodel?
- During the Covid-19 pandemic, working from home has become the norm. Because of this, many households face an increasing monthly electricity bill. Mr. Tan is a research student at the Singapore University of Social Sciences, and his research focus is to examine the impact of Covid-19 on household electricity consumption. He hypothesised that the average monthly electricity bill in a household has increased more than $5 during the Covid-19 pandemic. In order to test his hypothesis, he collected the electricity bill data in 50 households in May 2020 when Singapore was during the circuit breaker period. Mr. Tan also found that the mean and standard deviation of electricity bill in a household in May 2019 are $26 and $7, respectively. In order to study the impact of Covid-19 on household electricity consumption, Mr. Tan intends to make a comparison of the average electricity bills in May 2019 and May 2020 in his analysis. Question 1. Apply an appropriate hypothesis test to determine if the…A study conducted by researchers was designed "to determine if application of duct tape is as effective as cryotherapy in the treatment of common warts." The researchers randomly divided 6969 patients into two groups. The 3535 patients in group 1 had their warts treated by applying duct tape. The 3434 patients in group 2 had their warts treated by cryotherapy. Once the treatments were complete, it was determined that 6969% of the patients in group 1 and 8585% of the patients in group 2 had complete resolution of their warts. The researchers concluded that cryotherapycryotherapy is significantly more effective in treating warts than duct tapeduct tape. Complete parts (a) through (d) below.(a) What is the research objective? A.To determine if duct tape is as effective as cryotherapy in the treatment of warts B.To determine if cryotherapy is as effective as duct tape in the treatment of warts C.To determine if cryotherapy is effective in the treatment of warts D.To determine if…Governor Andy Beshear stated that COVID-19 is disproportionately affecting the AfricanAmerican community in Kentucky. As of April 21, there are 144 deaths from COVID-19 where the race of the patient is known, and of those 20 are African-American. AfricanAmericans make up 8% of the population of Kentucky overall. Does this information indicate that African-Americans in Kentucky are dying from COVID-19 at a disproportionate rate? Use an α = 0.05 significance level to test this claim. (d) What is the P-value?(e) Write a brief summary of your conclusion.
- A pharmaceutical company claims that after the clinical trials, it will release the first-ever cure for COVID-19. If they have committed an error of judgement, which type of error would they rather have, Type I or Type II? Why?I read about an antiviral drug called Paxlovid which can be given to high-risk individuals early after exposure to Covid-19 and is said to be protective against serious illness. A group of 1219 high-risk people were selected and 607 were given Paxlovid and 612 were given a placebo. After 28 days, nobody given Paxlovid had died and 6 were hospitalized. Among the placebo group, 10 had died and 41 were hospitalized. Our goal is to compare the difference in these proportions and assess the significance of the differences. We will add the steps as we go. What is the question? What are the relevant sample proportions?I read about an antiviral drug called Paxlovid which can be given to high-risk individuals early after exposure to Covid-19 and is said to be protective against serious illness. A group of 1219 high-risk people were selected and 607 were given Paxlovid and 612 were given a placebo. After 28 days, nobody given Paxlovid had died and 6 were hospitalized. Among the placebo group, 10 had died and 41 were hospitalized. Our goal is to compare the difference in these proportions and assess the significance of the differences. We will add the steps as we go. What makes sense as a null hypothesis and alternative hypothesis? 2. What would be a good level of significance, and what is the critical value?
- Mechanical engineer Kwok Wai Tham of the National University of Singapore set out to sample how much virus COVID-19 patients produce when they breathe, talk or sing, in part, to address skeptics’ concerns. “I’m doing this to convince some very close friends,” he says. He and colleagues rolled a mobile lab into 22 patients’ rooms and had volunteers stick their heads into a large metal cone. The researchers collected both aerosols and larger droplets that the patients exhaled while breathing quietly for 30 minutes, while repeating passages from Dr. Seuss’ Green Eggs and Ham for 15 minutes, or while singing simple tunes like the “Happy Birthday” song, “Twinkle, Twinkle Little Star” or the “ABCs” for 15 minutes. The scientists tested both aerosols and large droplets in the air samples for coronavirus RNA and calculated how many copies of the virus’s nucleocapsid protein gene, or N gene, were present. That gives an estimate of how much virus is in a sample.Of the 22 patients who sang for…a) The county supervisor of Orange County with over 3 million adults wants to know what percentage of adults in the county currently have Covid-19 antibodies in their systems (blood). Of the following methods, and considering each participant will receive a $100 Amazon gift card for participating, which is the most appropriate way to collect samples? (i) Conduct a census by testing the blood of every adult in the county. (ii) Place a notice on social media platforms asking adults to volunteer to have their blood tested. (iii) Select a random sample of adults with KAISER health insurance and ask each if they would have their blood tested. (iv) Select a random sample of adults using cell phone and home phone records and ask each if they would have their blood tested. b) With the context from above in mind, explain which sampling method would be best, a Stratified Method using cities as the strata, or a Cluster Method using age groups (18-24, 25-29, ...) as the clusters?The University is considering changing the email system that they currently use. Since there are substantial learning costs associated with any new software, the University only wants to change to the new system if it is very confident that there is at least a 20% difference in the proportion of faculty and staff who say they like the new system. In a sample of 120 users of the current system, the University finds that 65 say they like the current system. In another sample of 90 experimental users of the “new” system, the University finds that 70 of them like the new system. When testing the hypothesis (using a 5% level of significance) that there is at least a 20% difference in the proportion of users who like the two systems, the p-value is .2943; what is your conclusion concerning the null hypothesis? Reject the null hypothesis Fail to reject the null hypothesis