Answered: What is the appropriate conclusion? The…

Math

Statistics

What is the appropriate conclusion? The difference was calculated as (after - before

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

See similar textbooks

Related questions

Q: pulation of values has a normal distribution with = 211.6 and o=77.7. You intend to draw a om sample…

A: Given that. X~N( μ , ?) μ=211.6 , ?=77.7 , n=137 Z-score =( x - μ )/?

Q: Suppose we have the following data for the number of daily visitors to a website over a 7-day…

A: (a) To calculate a 3-day moving average, we take the average of each group of three consecutive…

Q: The infant mortality rate is defined as the number of infant deaths per 1000 live births. This rate…

A: The given graph shows the distribution of estimated infant death rates for 224 countries.

Q: Scores on the Scholastic Aptitude Test are normally distributed with μ = 500 and o= 100. Suppose we…

A: Given information Population mean μ=500, standard deviations σ=100 X~N(μ=500,σ=100)

Q: 2. In the table below you find the hair colour for a sample of students. blond black black brown…

A: Given data: blond black black brown blond blond black brown black blond black brown brown…

Q: Plz solve last part only Cov(X,Y)

A: Given: The bivariate distribution p(x, y) of two discrete random variables X and Y is: Y=5 0.1…

Q: d) What are the mean and standard deviation of the total amount of cereal in the two bowls? e) If…

A: let, X denotes the amount of cereals that can be poured in the small bowl and, Y denotes the amount…

Q: Find the value of the standard score, z, and determine whether to reject the null hypothesis at a…

A: here given data is:H0:μ=4.5H1:μ>4.5we have to find out the value of standard score, critical…

Q: 3. Assume a Standard normal distribution. Calculate P(z≥-1.49), and shade the area on your sketch.…

A: We have given information, Let Z denote the standard normal distribution. i.e. Z~N0,1

Q: 3 10 7 2 6 7 54 4 5 59 9 95 5 a. Find the Range, Number of Class and Class Size ( b. Construct a…

A: Hello, Thanks for posting the question. Since you have posted a question with multiple sub parts, we…

Q: 1.64 Hispanic popula among many other variables. The histogram below shows the distribution of the…

A: Given: The given histogram depicts the distribution of the percentage of the population that is…

Q: Could you further explain how you got this?

A: Given data : n = 4 u = 35000 o = 5000 P(x > 40000) = ?

Q: Calculate the minimum profit, maximum profit, standard deviation of this question using excel:…

A: solution: From the given information,

Q: Suppose we have two SRSS from two distinct populations and the samples are independent. We measure…

A: Introduction Hypothesis is an assumption that is being tested.

Q: A clinic offers a weight-loss program. The table below gives the amounts of weight loss, in pounds,…

A: a. Suppose µ is the population mean amount of weight loss.

Q: 9. What is the probability of selecting someone from the general population at random who would…

A: Answer:- Given , A standardized IQ test exists that possesses a normal distribution and has a mean…

Q: can you please identify the margin of error? I do not see it on my screen or the information that…

A: The confidence level is 95%.

Q: test statistic

Q: The Table below shows the average score of the150 students sampled from the University of the East…

A: Introduction: It is required to calculate the mean, median, and modal scores for the given students.

Q: Computer-mediated communication (CMC) is a form of interaction that heavily involves technology…

A: Given: The data given is: CMC…

Q: Historically, 76% of University of Arkansas faculty members purchase a parking pass every year.…

A: We have given information, The symbol π is used to represent the population proportion of faculty…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Obtain the Z-score for the probability of a bone density test greater than 0.81. The Z-score for the…

Q: 9. Challenge A bag contains 200 red and blue marbles. Three people each took samples of 25 marbles…

A: a. To combine the samples and make a prediction, we can use the proportion of red marbles in the…

Q: To test the effectiveness of a liquid supplement that is supposed to help forgetful people with…

A: The ongoing COVID-19 pandemic has brought unprecedented challenges to people worldwide. It has…

Q: 5. A company consists of two branches. In the first branch there are 70 employees earning on average…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Let Z be the random variable from standard normal distribution with mean = 0 and standard deviation…

Q: a. Which is the explanatory variable? b. Make a scatterplot. Is the association between these…

A: Here dependent variable is carbon dioxide The Independent variable is the Year. The data is given…

Q: 2. On a certain trajectory, a 100 cars were tested. The fuel consumption (litres per 100 km, rounded…

A: As per our guidelines I can solve only first 3 subparts. Kindly post the remaining subparts again…

Q: Ho: p≥ 0.75 Ha: p < 0.75 A sample of 300 items was selected. Compute the p-value and state your…

A: HYPOTHESIS:H0:p≥0.75Ha:p<0.75n=300α=0.05we have to find out the p-value for the given data.

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: Given: The shaded area is in the left tailed with mean 0 and standard deviation 1. That is P (Z <…

Q: According to this model, what would be the body mass of a butterfly that has an average forward…

A: Here use given function for prediction of average forward body speed in meters per second.

Q: Consider the following stem and leaf plot. Find the third quartile 75th percentile. Use the…

Q: what does the c mean?

A: Given data : what does the c mean?

Q: According to the data, the mean quantitative score on a standardized test for female college-bound…

A: Given that : Mean μ=500 Standard devition σ=100 We have to calculate percentage of the female…

Q: Why do the results imply that long term investing is less risky than short term investing

A: The results imply that long-term investing can be a profitable strategy because, on average, the…

Q: Two cards are drawn at random, in succession and without replacement, from a deck of 52 cards. (a)…

A: Given,Total no.of cards=52no.of ace of spade cards=1no.of king cards=4

Q: Can step 4 please be explained. I'm not sure I understand the calculations. No handwriting please.…

A: Here we want to find the value of test statistics. It is just a basic calculation using a formula.…

Q: Cats, Part II. Exercise 7.30 presents regression output from a model for predicting the heart weight…

A: Given Information: Estimate Standard Error T Value Pr(>|t|) (Intercept) -0.357 0.692…

Q: For each of the following, decide whether the proper inference is a prediction interval for y or a…

A: We have to decide which one is predictive interval or the confidence interval.

Q: Past surveys indicate that 58% of Americans personally worry a great deal about federal spending and…

A: According to the given information, we have Sample size, n = 193 Probability, p = 58% = 0.58 x = 143

Q: Baby weight: Following are weights, in pounds, of 10 two-month-old baby girls. It is reasonable to…

A: Given that, The data is xi 8.63 12.95 8.51 12.23 14.13 11.87 12.32 10.30…

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: The less-than probability of standard normal distribution is PZ≤z=0.1635

Q: For each part (a)-(d), determine whether or not the success-failure condition of the Central Limit…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted.....…

Q: A random sample of 89 airline pilots recruited by an airline service had an average yearly income of…

A: It is given that Sample mean = 99500 Sample standard deviation = 11000 Sample size = 89

Q: A random variable X is normally distributed with mean μ = 10 and standard deviation σ = 1.5. Find…

A: It is given that the mean is 10 and the standard deviation is 1.5.

Q: A corporation owns several companies. The planner for the corporation believes the amount spent on…

A: Given data is Advertising(x) sales(y) 12.5 148 3.5 26 21.4 120 10.5 100 12.2 157 8.9…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: given data normal distributionμ = 100.8 cmσ = 1.4 cmn = 18P(M<99.9 cm) ?

Q: eating fuel was used and what year the but on of the findings follows. Electricity 40 24 37 48 Fuel…

A: *Answer: The given data is Year Constructed Electricity Natural Gas Oil propane…

Q: Find p value

A: The level of significance is 0.05.

Q: A probability experiment consists of rolling a six-sided die and spinning the spinner shown at the…

A: Here the given information is A probability experiment consists of rolling a six-sided die and…

Question

A medical researcher wants to examine the relationship of the blood pressure of patients before and after a procedure. She takes a sample of people and measures their blood pressure before undergoing the procedure. Afterwards, she takes the same sample of people and measures their blood pressure again. The researcher wants to test if the blood pressure measurements after the procedure are different from the blood pressure measurements before the procedure. The hypotheses are as follows: Null Hypothesis: μ_D = 0, Alternative Hypothesis: μ_D ≠ 0. From her data, the researcher calculates a p-value of 0.8011. What is the appropriate conclusion? The difference was calculated as (after - before).

Question 13 options:

1)	We did not find enough evidence to say there was a significantly positive average difference in blood pressure.

2)	We did not find enough evidence to say the average difference in blood pressure was not 0.

3)	The average difference in blood pressure is significantly different from 0. The blood pressures of patients differ significantly before and after the procedure.

4)	The average difference in blood pressure is equal to 0.

5)	We did not find enough evidence to say there was a significantly negative average difference in blood pressure

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Given information

VIEW

Step 2: Determine the conclusion

VIEW

Solution

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Consider the following: In general, when people diet they typically lose 10 lbs. (?σ = 2). A random sample of 16 people on the keto diet lost 15 lbs. Do people on the keto diet lose more or less weight than people on diets in general? 3. What is the Null Hypothesis? a)On average, weight loss in the keto diet sample does not differ from weight loss in the population of dieters in general. (H0: X-bar = Mu)) b)On average, weight loss in the keto diet sample does not differ from weight loss in the population of dieters in general. (H0: X-bar does not equal Mu) c)On average, weight loss in the keto diet sample differs from weight loss in the population of dieters in general. (H0: X-bar does not equal Mu) d)On average, weight loss in the keto diet sample differs from weight loss in the population of dieters in general. (H0: X-bar = Mu)
Researchers interested in lead exposure due to car exhaust sampled the blood of 52 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a primarily urban environment. The blood samples of these officers had an average lead concentration of 124.32 µg/l and an SD of 37.74 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level concentration of 35 µg/l. Write down the hypotheses that would be appropriate for testing if the police officers appear to have been exposed to a higher concentration of lead. Explicitly state and check all conditions necessary for inference on these data. Test the hypothesis that the downtown police officers have a higher lead exposure than the group in the previous study. Interpret your results in context. Based on your preceding result, without performing a calculation, would a 99% confidence interval for the average blood concentration…
Method A: M1= 54, SS1= 400, n1= 15 Method B: M2=40, SS2= 440, n2=15 Using alpha=0.05 should the null hypothesis by rejected for the above data?
About half of the police officers in Baltimore, Maryland, have completed a special course in community policing. As Captain of your division, you want to know if the course increased calls from the minority community for assistance from your precinct. Below is the results of before and after training in proportions for calls from the minority community in your precinct. Be sure and state whether you accept or reject the null hypothesis. Alpha is 0.05 for setting your Z critical value. After Training Before training Ps1 = 0.47 Ps2 = 0.43 N1 = 157 N2 = 113
Dr. Chapman conducted an experiment in which participants watched paint dry for 30 minutes twice, once being paid $1 and once being paid $30. When comparing the samples, he calculated t = 3.57. He assumed α = .01 with df = 5, so the tcv = ±4.032. Because the calculated value was: A. greater than the critical value, Dr. Chapman can reject the null hypothesis. B. greater than the critical value, Dr. Chapman failed to reject the null hypothesis. C. less than the critical value, Dr. Chapman failed to reject the null hypothesis. D. less than the critical value, Dr. Chapman can reject the null hypothesis.
The major of a very small town wants to compare the number of flu cases that she has in her town(a sample) to the number of flu cases nation wide (the population) to see differ. What is the null hypothesis for the scenario? A)Ho: r=0 B)Ho:u1=u2 C)Ho:X=u D)Ho: u1=u2=u3
A researcher who wants to know whether the proportion of male births in a hospital is different from the established baseline of 51.07%, would like to test the following hypotheses: Ho:P = 0.51 vs. Ha :P = does not equal 0.51 a) Is the alternative hypothesis upper tail, lower tail, or two tailed? b) What do you conclude if the test results p-value of 0.03 at alpha value = 5% c) What do you conclude if the test results p-value of 0.08 at alpha value = 10%
You complete a hypothesis test using alpha = .05 and based on the evidence from the sample, your decision is to fail to reject the null hypothesis. If the treatment actually does have an effect, which of the following is true?
As a result of complaints from customers about delivery times, the manager at a pizza delivery service is ready to undertake a study to determine the average delivery time. Until now, the manager has believed the delivery time was 20 minutes. Question content area bottom Part 1 What are the null and alternative hypotheses? H0: ▼ Upper X overbarX sigmaσ ss betaβ muμ alphaα ▼ equals= not equals≠ enter your response here H1: ▼ sigmaσ alphaα ss Upper X overbarX betaβ muμ ▼ equals= not equals≠ enter your response here
If my test statistic is Z = 2, my alpha is .05 and I am doing a one sided test, what is my decision? A-Fail to reject the z-statistic B-Fail to reject the null hypothesis C-Reject the alternate hypothesis D-Reject the null hypothesis
Match the p-values with the appropriate conclusion: I. 0.00001 II. 0.0189 III. 0.0611 IV. 0.4234(a) The evidence against the null hypothesis is significant, but only at the 10% level. (b) The evidence against the null and in favor of the alternative is very strong. (c) There is not enough evidence to reject the null hypothesis, even at the 10% level. (d) The result is significant at a 5% level but not at a 1% level.
A researcher is interested in examining whether doctors are as accurate at diagnosing certain illnesses via telehealth as they are in person. She randomly assigns a sample of doctors to either see patients via telehealth or in person, and assesses their diagnostic accuracy. What is the null hypothesis for scenario 2? A) H0: µ(telehealth) = µ(in person) =µ(control) B)Ho:μtelehealth=X¯in−person C)H0: rxy = 0 D)H0:µTelehealth =µIn-Person