Question

Hello! I need help on this question on my study guide. Thank you, and appreciate the help!

4. Out of 10,000 teens ages 16-18 surveyed in 2008, 795 used marijuana on a regular basis. In 2017 the same
survey reported 2,070 used the drug on a regular basis. Find the absolute change between the 2008 and 2017
values.
Expand
Transcribed Image Text

4. Out of 10,000 teens ages 16-18 surveyed in 2008, 795 used marijuana on a regular basis. In 2017 the same survey reported 2,070 used the drug on a regular basis. Find the absolute change between the 2008 and 2017 values.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Other

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: (b) Let μ1 be the population mean for x1 and let μ2 be the population mean for x2. Find an 85% confi...

A: The Sample mean and sample standard deviation is computed as follows:

Q: Assume it is possible to estimate a person's score on Test B from the person's score on Test A. The ...

A: It is given that the regression equation is B = 2.3 A +9.5.

Q: Most married couples have two or three personality preferences in common. A random sample of 380 mar...

A: Click to see the answer

Q: Major League Baseball teams have become concerned about the length of games. During  a recent seaon ...

A: Click to see the answer

Q: Please give a detailed explanation, not just the answer. Thanks in advance! Assume that a sample is ...

A: Obtain the 95% confidence interval estimate for the proportion. The 95% confidence interval estimate...

Q: Consider a binomial distribution with n = 10 trials and the probability of success on a single trial...

A: Click to see the answer

Q: Uise the information in Table 104 and estimatệ the standard deviation for adult WAIS R scores se at

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: The bars on a histogram: sometimes touch one another. always touch one another. never touch on...

A: Histogram:  A histogram is a graphical representation of data using bars of different heights. In a ...

Q: how to solve #17?

A: Click to see the answer

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may var...

A: The provided information are: Confidence level = 85% = 0.85 Margin of error (E) = 0.04 (a) From the ...

Q: Although painful experiences are induced in social rituals in many parts of the world, little is kno...

A: Click to see the answer

Q: A statistics teacher wanted to see whether there was a significant difference in ages between day st...

A: Hey there! Thanks for posting the question. Since there are more than three sub-parts, we will answe...

Q: I’ll bet you didn’t know this, but plain (and peanut) M&M's are now produced at two different fa...

A: From the provided information, There are many category of color and the observed proportion are give...

Q: A researchers is interested in the amount of sleep an individual receives after consuming a sleeping...

A: Given data of  amount of sleep an individual receives after consuming a sleeping aid (Melatonin, Val...

Q: A researcher conducts an experiment comparing four treatment condition with n=12 scores in each cond...

A: From the provided information, a researcher conducts an experiment comparing four treatment conditio...

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may var...

A: The sample proportion is computed as follows:

Q: The average American gets a haircut every 37 days. Is the average larger for college students? The d...

A: The provided data set is:

Q: A service counter manager wishes to ensure that an average of 16 seconds to serve a customer. In ord...

A: Click to see the answer

Q: The average time taken for your Internet service provider to remotely resolve a trouble ticket has a...

A: Click to see the answer

Q: The Poisson distribution for a discrete variable x = 0, 1, 2, ... and real parameter λ is (a...

A: Click to see the answer

Q: In this problem, assume that the distribution of differences is approximately normal. Note: For degr...

A: a) From the given information, the level of significance is 0.05.

Q: The duration (in days) of human pregnancies follows approximately the ?(266,16)distribution. What pr...

A: From the given information,  Consider, X the duration (in days) of human pregnancies follows approxi...

Q: Oil and Gas Prices The average gasoline price per gallon (in cities) and the cost of a barrel of oil...

A:  The scatter plot can be obtained using EXCEL software. Enter the values of X in column A and Y in ...

Q: As the alpha level gets lower, which error rate also gets lower? Type I Type II

A: We know that, Type I error is – In this we reject the null hypothesis which is actually true called ...

Q: (a) Find ?z such that the proportion of observations that are less than z in a standard normal distr...

A: a) P(Z<z)= 0,29 z=? From standard normal table, P(Z<-0.55)=0.29   Therefore z=-0.55  

Q: During a period of 11 years 800 of the people selected for grand jury duty were sampled, and 62% of ...

A: Click to see the answer

Q: If a 95% confidence interval contains 0, so will the 99% confidence interval. True False3

A: Solution: As the confidence level increases the margin of error increases. This leads to the increas...

Q: Hello! I need help on this question on my study guide. Thank you, and appreciate the help!

A: Given: Total individuals = 12 Number of individuals that brought dogs = 8 Number of individuals that...

Q: The scores of students on the SAT college entrance examinations at a certain high school had a norma...

A: Obtain the probability that a single student randomly chosen from all those taking the test scores 5...

Q: A 2013 Pew survey asked, Do you feel that embryonic stem cell research is morally wrong?" Of the 200...

A: Determine for calculating a 99% confidence interval for the difference in proportions of men and wom...

Q: Give a 99.8% confidence interval, for μ1−μ2 given the following information. n1=20 ¯x1=2.91, s1=0.44...

A: Click to see the answer

Q: 10. Using the least-squares regression line, \hat y =-25.5+1.5xy^​=−25.5+1.5x, what is the residual ...

A: Residual: A residual is the difference between an observed response and the corresponding prediction...

Q: You may need to use the appropriate appendix table or technology to answer this question. The follow...

A: The given summary statistics are as follows:

Q: A worker is reviewing his pay increases over the past several years. The table below shows the hourl...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of err...

A: It is given that the margin of error E is 0.1.

Q: A recent study claimed that at least 15% of junior high students are overweight. In a sample of 160 ...

A: Click to see the answer

Q: A random sample of nn measurements was selected from a population with standard deviation σ=12.7σ=12...

A: Obtain the 99% confidence interval for the population mean. The 99% confidence interval for the popu...

Q: Suppose you are a (junk) bond broker who buys only bonds that have a 50% chance of default. You want...

A: It is given that, the probability of brokers who will default is 0.50.

Q: Give a 99.8% confidence interval, for μ1−μ2 given the following information. n1=20 , ¯x1=2.91, s1=0....

A: Click to see the answer

Q: A poll is taken in which 393393 out of 600600 randomly selected voters indicated their preference fo...

A: Obtain the 95% confidence interval estimate for the proportion. The 95% confidence interval estimate...

Q: In late July 2016, the Ohio Department of Health collected vials of water from 12 beaches on Lake Er...

A: Click to see the answer

Q: The score on an exam from a certain statistics class, X, is normally distributed with μ=78.2μ=78.2 a...

A: From the given information, The score on an exam from a certain statistics class, X, is normally dis...

Q: What observations can you make about the population of the 50 states?

A: Click to see the answer

Q: How do I use technology to figure out the p-value either StatCrunch or a T-84 calculator)? Please sh...

A: Hypotheses: The aim is to check whether the sample evidence suggest that more than 2.4​% of this​ dr...

Q: The typical college freshman spends an average of ?=150 minutes per day, with a standard deviation o...

A: Solution: Let X be the time on social media. From the given information, X follows normal distributi...

Q: You are working as an assistant to the dean of institutional research at your university. The dean w...

A: The correct option is identified below: Assumptions required to construct the confidence interval: I...