Math

StatisticsQ&A Library3. What raw score is needed to reach the 14th percentile?4. What range of raw scores makes up the middle 40%?5. If you score an 80, what percentage of the population scored above you?6. What percentage of the population lands between the raw scores of 82 and 107?7. If you score a 85, what percentage of the population scored above you?8. What raw score is needed to be in the bottom 16%?9. If you score a 96, what percentage of the population scored above you?10. What raw score is needed to be in the top 17%?11. What raw score is needed to reach the 90th percentile?12. What percentage of the population lands between the raw scores of 83 and 100?13. If you score a 85, what percentage of the population below you?14. What raw score is needed to be in the bottom 28%?15. What percentage of the population lands between the raw scores of 86 and 105?Start your trial now! First week only $4.99!*arrow_forward*

Question

3. What raw score is needed to reach the 14th percentile?

4. What range of raw scores makes up the middle 40%?

5. If you score an 80, what percentage of the population scored above you?

6. What percentage of the population lands between the raw scores of 82 and 107?

7. If you score a 85, what percentage of the population scored above you?

8. What raw score is needed to be in the bottom 16%?

9. If you score a 96, what percentage of the population scored above you?

10. What raw score is needed to be in the top 17%?

11. What raw score is needed to reach the 90th percentile?

12. What percentage of the population lands between the raw scores of 83 and 100?

13. If you score a 85, what percentage of the population below you?

14. What raw score is needed to be in the bottom 28%?

15. What percentage of the population lands between the raw scores of 86 and 105?

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: Two dice are rolled. Find the probability of getting A. A sum of 5,6,7 B. Doubles or sum of 6 or 8 ...

A: Sample space for rolling two dice:It is given that two dice are rolled. The number of possible outco...

Q: Hi. I need help with part (c) only. Consider the accompanying 2 × 3 table displaying the sample prop...

A: Let us assume the total sample size be n. Writing the given proportions as number of people we get a...

Q: I want you to come up with one study idea that would use a one sample chi square and one study that ...

A: The one sample Chi-square test is also called as Chi-square goodness of fit, which is used to decide...

Q: Are there ever any circumstances when a correlation such as Pearson's r can be interpreted as eviden...

A: Correlation between any two variables tell us the linear association meaning that one variable rise ...

Q: Do larger universities tend to have more property crime? University crime statistics are affected by...

A: Part (a):The scatter diagram, along with the best fitted line (least-squares regression line) for th...

Q: A student takes a multiple-choice test that has 20 questions. Each question has five choices. The st...

A: Binomial distribution:It is a discrete probability distribution in which each trials have exactly tw...

Q: The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30. Fin...

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the ...

Q: A major university would like to improve its tarnished image following a large on-campus scandal. It...

A: Begin with tabulating data in readable format as shown below.

Q: A person with a cough is a persona non grata on airplanes, elevators, or at the theater. In theaters...

A: (a)Poisson distribution is most suitable, when the events are “rare” and occur independently of each...

Q: A genetic experiment involving peas yielded one sample of offspring consisting of 430 green peas and...

A: State the appropriate hypothesis:Let p be the population proportion of yellow offspring peas.The giv...

Q: A physician wants to determine if a supplement is effective in helping men lose weight. She takes a ...

A: It is given that the sample size (n) is 6 and the hypothesized test is left- tailed. The level of si...

Q: Directions: Draw the normal curve and shade in the specific region. Show formulas used and the subst...

A: Introduction:The normal distribution is a symmetric and mesokurtic continuous probability distributi...

Q: The numbers of faculty at 32 randomly selected state-controlled colleges and universities with enrol...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is known is given ...

Q: A therapist believes that the music a child listens to may have an impact on the number of words on ...

A: Given Null hypothesis H0 : µd = 0 Alternative hypothesis Ha: µd ≠ 0A sample size of 19 students is c...

Q: A recent study showed that the modern working person experiences an average of 2.1 hours per day of ...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is known is given ...

Q: I need help understanding observational units, variables, how to formulate research questions.

A: Solution:Observational units:Observational units are the objects or entities on which information co...

Q: Statistics Question

A: Solution:It is given that “Budget” as x variable and significance level of α=0.05.The regression equ...

Q: How much money do winners go home with from the television quiz show Jeopardy? To determine an answe...

A: Solution:Confidence interval formula:Confidence interval = sample statistic ± margin of errorWhere, ...

Q: Suppose you are assigned the number 1, and the other students in your statistics class call out cons...

A: Solution:(a) A random sample of four students from statistics class can be selected by using a compu...

Q: List and describe two of the common types of explanations for statistical relationships (other than ...

A: Common types of explanations for statistical relationships:The common types of explanations for stat...

Q: 12.10. Question attached. Thank you for answering my question!

A: Bonferrroni's formula for half-width is given by the formula shown below where I = number of means (...

Q: What happens to the variance when outliers are eliminated replaced by values closer to the mean

A: Introduction:Mean:Mean is an important measure of center when the data is quantitative. Mean of a da...

Q: A cell phone manufacturer claims that the average battery life of its newest flagship smartphone is ...

A: Given Null Hypothesis Ho : µ = 20Alternative Hypothesis Ha : µ < 20Sample size n = 3Sample mean =...

Q: Suppose x has a normal distribution with mean μ = 28 and standard deviation σ = 7.Describe the distr...

A: Note:Hi there! Thank you for posting the question. Your question asks about the “distribution of x v...

Q: Jobs and productivity! How do retail stores rate? One way to answer this question is to examine annu...

A: (a)Using the provided data, the sample mean can be calculated using Excel function “AVERAGE()”.Enter...

Q: A statistical program is recommended. Electromagnetic technologies offer effective nondestructive se...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: Part A, B, C

A: Here, the population standard deviation is unknown, so the t-distribution is used.It is provided tha...

Q: In a survey of 3 of 4 students said the courts show too much concern for criminals. Find the probab...

A: According to the given question, in a survey of 3 of 4 students said the courts show too much concer...

Q: A company has a price demand function P (x) = 150 − 3x for a certain product. What is the revenue fu...

A: The price demand function is provided as P(x) = 150 - 3x.The revenue function is given by,R(x) = xP(...

Q: A set of data items is normally distributed with a mean of 40 and a standard deviation of 6. Convert...

A: Given set of data is normally distributed with mean = 40Standard deviation = 6The Z score for any da...

Q: A random sample of 30 binomial trials resulted in 12 success. Test the claim that the population por...

A: Hi, since the problem posted by you contains multiple sub-parts, we are answering the first three s...

Q: The flow in a river can be modeled as a log-normal distribution. From the data, it was estimated tha...

A: According to the given question, the flow in a river can be modeled as a log-normal distribution. Fr...

Q: Suppose that from the past experience a professor knows that the test score of a student taking his ...

A: If a random variable X has a distribution with mean µ and standard deviation σ, then the Z-score is ...

Q: In a normal distribution of pain estimates (0 = no pain, 100 = lots of pain) where μ = 25 and σ = 11...

A: The given information is that the normal distribution of pain estimates with mean 25 and standard de...

Q: A. A population has a mean of 6.9 and standard deviation of 2.6. Find the value that has 80% of the ...

A: Given Population mean = 6.9Standard deviation = 2.6The Z score with the area left to it close to 0.8...

Q: The government of a large city needs to determine whether the city's residents will support the bui...

A: Solution:Reasons for incorrect options:Opinions of other city residents who do not have children in ...

Q: - A study was done using a treatment group and a placebo group. The results are shown in the table. ...

A: (a)The provided image does not have the question for subpart (a), since the claim is not known, the ...

Q: I am working on constructing a histogram for some data for the 39 US national parks under 900,000 ac...

A: According to the given data41 ,66 ,233 ,775 ,169, 36 ,338 ,233 ,236, 64,183 ,61 ,13 ,308 ,77,520, 77...

Q: Suppose that in a random selection of 100 colored candies, 21% of them are blue. The candy company c...

A: State the appropriate hypothesis:Let p be the population proportion of blue candies.A candy company ...

Q: See attachment for question.

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials, s...

Q: In baseball, is there a linear correlation between batting average and home run percentage? Let x re...

A: In this question we have the given data and using which we have to plot the scatter plot, and best l...

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were...

A: The provided details:

Q: 2. In a lab experiment, students estim is known to have a true value of 5% weight by volume, but stu...

A: Let X be the concentration estimate. X follow a normal distribution with mean 5% and standard deviat...

Q: In the EAI sampling problem, the population mean is $51,400 and the population standard deviation is...

A: It is provided that the population mean is $51400 and the population standard deviation is $4000.The...

Q: What is a sampling distribution? What do we know about the shape and characteistics of the sampling ...

A: In a statistical investigation, we try to asses a general problem respect to one or more characteris...

Q: A group of data items and their mean are given. 12, 20, 28, 48, 72, 108; Mean=48 A. Type the deviat...

A: A.Computing the deviation from mean for each of the data:Here the data items are 12, 20, 28, 48, 72,...

Q: In a survey of 4061 adults, 738 say they have seen a ghost. Construct a 99% confidence interval fo...

A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have ...

Q: You are a graduate student in an M.D./Ph.D program, attempting a study of the efficacy of different ...

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...

Q: A researcher wants to test to see if husbands are significantly older than their wives. To do this, ...

A: The aim is to find the accurate statement from the following options to evaluate the population mean...

Q: Hi. How do you calculate this Poisson Distribution in the TI-83? Thanks.

A: Let ‘Y’ be the waiting time between two busses which follows exponential distribution with mean wait...