2. According to a study on the effell U on music, 11% of all Internet users h music. If 40% of all music fans used Internet users had decreased their s decreased their spend
Q: Suppose a quarterback’s completion percentage for the season is 67.2%. Based on relative frequency,…
A: 67.2% time quarterback complete a pass. So, the probability that quarterback will complete a pass =…
Q: ABC Inc., with the province-wide operation for 15 years, is estimated to have about 12.5% the market…
A: Given that,sample size(n)=650success rate ( p )= x/n = 0.158success probability,( po )=0.125failure…
Q: Suppose a quarterback's completion percentage for the season is 67.2%. Based on relative frequency,…
A: We have to find Based on relative frequency, is it more likely that he will complete his next two…
Q: . A child dying from an accidental poisoning is a terrible incident. Is it more likely that a male…
A: Suppose p1, p2 are the true population proportions of male child and female child, who will get into…
Q: A researcher wanted to investigate gender differences in aggressive behavior among adolescents. She…
A: Given the gender wise bar chart of frequency of aggressive behavior among adolescents.
Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…
A: (a) Determine the level of significance. Correct option: Option 4
Q: 25. A study was conducted to determine whether the difference in fuel economy (miles per gallon) for…
A: Given, t- value is less than critical value
Q: The table below show the sample of ages of teenagers start smoking. What is the percent cumulative…
A: Given, Ages Frequency 18 10 19 15 20 5 21 6 22 2 23 4 24 9 25 4
Q: The median number of part-time employees at fast-food restaurants in a particular city was known to…
A: The median number of part-time employees at fast- food restaurant is 18. There are 7 fast-food…
Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…
A: Given: n1=34 , n2=33, x1=15.2, x2=19.5, σ1=7.6, σ2=4.8 The hypothesis that can be derived is: H0:…
Q: Q2. The US Energy Information Administration compile data on energy consumption and publishes its…
A: Given Information: Population mean (u) = 114 BTU Sample size (n) = 50
Q: 1. A dog groomer is often asked if small dogs bark more than larger dogs. To test this, he logs the…
A: Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…
Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…
A: From the provided information,
Q: A tire manufacturing company encourages its employees to promote a zero-accident environment by…
A: Given data: Shift Dangerous Conditions Employee Error Total Morning 5% 32% 37% Mid 6% 25% 31%…
Q: A local gym tested the effectiveness of a new exercise program by tracking each participant's amount…
A: Confounding variable: Confounding variable is a third variable that has hidden effect on the…
Q: Use the Plan, Solve and Conclude steps in answering this question
A:
Q: Forty new employees hired at the same time are randomly divided into two groups. One group receives…
A: Experimental Study: If some treatments are applied on the individuals in order to observe the…
Q: One of the most feared predators is the great white shark, which can grow to a mean length of 21…
A: Given, population mean (µ) = 21 sample size (n) = 3
Q: 5) What effect would adding a constant to each data value in a set have on the mean and variance of…
A: What effect adding a constant to each data value in a set have on the mean and variance of the set.
Q: I need help with finding the P-value
A: The test statistic is, z=x¯1-x¯2σ12n1+σ22n2=15.2-19.76.8230+4.8234=-4.51.48962424529=-3.0209≈-3.02…
Q: According to a study, 1145 out of 1295 college graduates in the Philippines are employed. At a 0.05…
A: Solution:- from given information claim: proportion of employed college graduates in the Philippines…
Q: 4. Consider a data set of 1000 annual incomes (in thousand of dollars). Suppose two zeros were…
A: There are total 1000 annual incomes in a data set. Now, 2 zeros have been mistakenly added to one of…
Q: 20) A large city in Southern California collected data on education and the unemployment rate for…
A: The data on education and the unemployment rate is given below, Education level Frequency Average…
Q: a) If Q3 = 30, then 25% of the data is above 30 2. True 3.False
A: Given: Q3=30
Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…
A: a) The level of significance is 0.05.
Q: p. A person with a serum cholesterol level igher than 200 mg/dL falls in a high-risk category for…
A: Fr the given information we find the probability.
Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…
A: The provided sample means are shown below: Xˉ1=15.2\bar X_1 = 15.2 (For older people) Xˉ2=19.5\bar…
Q: Suppose you are conducting a study about how the average U.S. worker spends time over the course of…
A: Given information: It is given that, the mean break time per day from the most recent census is 29.6…
Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…
A: For age 65 and older : Sample Mean 1 (Xˉ1)(\bar X_1) = 15.215.2 Population Standard Deviation…
Q: 8. Does When Food Is Eaten Affect Weight Gain?A study was introduced that examined the effect of…
A: Part (a): Correlation coefficient: From the given output, The correlation coefficient for BMGain and…
Q: .Taggart Vanetten ran the Marathon in 151 minutes what is his percentile ?what does it mean in the…
A: Given, Data is provided in this table: Sum of minutes in data: 7196 Total no. of values : 40
Q: ged? In on, 18% 2012, a school chelor's ached?
A: See hand written solution ,
Q: 6. A psychologist believes a greater frequency of counseling is beneficial for clients suffering…
A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…
Q: Interpret the association. There is a positive correlation between an individual's level of…
A: Correlation coefficient quantifies the strength and direction of relationship between variable. The…
Q: a. What statistical test will you use to test this data ? b. State the null and…
A: From provided information it is claimed that, women’s movement has resulted in an increase in the…
Q: Page 3 The Environmental Protection Agency regulates the amount of lead in tap water. According to…
A:
Q: show had an AQH rating of 12.0 among Men and 15.0 among Women. If Women constituted ercent of the…
A:
Q: Suppose that if an adult falls in the bottom 5% of the distribution of the amount of blood of…
A: Note: Hi there! Thank you for posting the question. Unfortunately your question has missing…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large surveys of people age 65 and older were taken in n1 = 38 U.S. cities. The sample mean for these cities showed that x1 = 15.2% of the older adults had attended college. Large surveys of young adults (age 25 - 34) were taken in n2 = 37 U.S. cities. The sample mean for these cities showed that x2 = 18.1% of the young adults had attended college. From previous studies, it is known that ?1 = 6.4% and ?2 = 4.8%. Does this information indicate that the population mean percentage of young adults who attended college is higher? Use ? = 0.05. What is the value of the sample test statistic? (Test the difference ?1 − ?2. Round your answer to two decimal places.)=__(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)=__40. What is the Dependent Variable of the study? a. Number of Burgers b. Fast Food Group C. Calories d. Popularity4. Which of the following factors has the highest positive correlation with life expectancy in some countries in Asia? Why do you think this factor has the highest correlation with life expectancy? Use the data below. World Happiness Report 2016 (Cantril Ladder (0=worst; 10=best))*** Vegetable supply Life expectancy (years)* Average annual hours worked by each person** per person Country (kilograms per year)**** Cambodia 69.3 103.0 4.6 30.3 Hong Kong 84.5 91.0 5.4 129.9 India 69.2 89.0 4.0 79.9 Japan Myanmar Philippines South Korea Sri Lanka 84.3 73.0 5.9 91.1 66.6 102.0 4.2 82.8 71.0 90.0 5.6 62.6 82.6 86.0 5.9 197.1 76.6 81.0 4.3 49.8 Taiwan 80.1 83.0 6.4 117.8 Thailand 76.7 91.0 5.9 39.9 Turkey 77.2 77.0 5.6 254.1 Vietnam 75.2 91.0 5.2 170.5
- 24. A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data: Every day for a week, he counts how mnany times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The table shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fir? How many seconds should he expect a player to take to run -0 yards if that player can do 22 leg-press repetitions Round any values to the nearest tenth, if necessary Leg Press (reps) 32 7 11 23 28 15 12 40-vard Dash (s) S.6 14.6 7.1 S.3 11 9 13 4 9.5 53°F aBy a small margin, Facebook remains the top choice of social media over all ages, with 29% using Facebook most often among those using social media sites. However, more visually oriented social networks such as Snapchat and Instagram continue to draw in younger audiences. When asked "Which one social networking brand do you use most often?" the results in the table show the top brands chosen by Americans aged 12-34 who currently use any social networking site or service. Social M edia Site Faceboo k Snapchat Instagra m Twitter Percentage That Use Most Often 29 28 26 6 20 (a) What is the sum of the percentages for these top social media sites? Give your answer as an exact number. Macmillan Learning top social media sites: What percent of Americans aged 12-34 use other social media sites most often? Give your answer as an exact number. other social media sites: do %4. A college student is contemplating a possible career option. One factor that will influence his decision is the amount of money he is likely to make. He decides to look up the average salary of graduates in that profession. Which information would be more useful to him, the mean salary or the median salary? Why?
- 5. In the United States, there is a strong relationship between education and smoking: well-educated people are less likely to smoke. Does a similar relationship hold in France? To find out, researchers recorded the level of education and smoking status of a random sample of 459 French men aged 20 to 60 years.36 The two-way table below displays the data. Is there convincing evidence of an association between smoking status and educational level among French men aged 20 to 60 years? Smoking Status Nonsmoker Former Moderate Heavy Primary School 56 54 41 36 Education Secondary School 37 43 27 32 University 53 28 36 165. Suppose that 68% of all adults think that airplanes would be safer places if airline passengers were banned from carrying on board any luggage, including purses, computers, and briefcases. An opinion poll plans to ask an SRS of 1023 adults about airplane safety. The proportion of the sample who think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases, will vary if we take many samples from this same population. The sampling distribution of the sample proportion is approximately Normal with mean 0.68 and standard deviation about 0.015. Sketch this Normal curve and use it to answer the following question. Round to nearest tenth percent. What is the probability of getting a sample in which more than 70% think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases?4. Straight As now, healthy later A study by Pamela Herd of the University of Wisconsin-Madison found a link between high-school grades and health. Analyzing data from the Wisconsin Longitudinal Study, which has tracked the lives of thousands of Wisconsin high-school graduates from the class of 1957, Herd found that students with higher grade-point averages were more likely to say they were in excellent or very good health in their early 60s. Does this mean people will live healthier lives if they increase their GPA? Explain.47
- Education influences attitude and lifestyle. Differences in education are a big factor in the "generation gap." Is the younger generation really better educated? Large surveys of people age 65 and older were taken in n1 = 38 U.S. cities. The sample mean for these cities showed that x1 = 15.2% of the older adults had attended college. Large surveys of young adults (age 25 - 34) were taken in n2 = 37 U.S. cities. The sample mean for these cities showed that x2 = 18.1% of the young adults had attended college. From previous studies, it is known that ?1 = 6.4% and ?2 = 4.8%. Does this information indicate that the population mean percentage of young adults who attended college is higher? Use ? = 0.05. (c) Find (or estimate) the P-value. (Round your answer to four decimal places.) A random sample of n1 = 12 winter days in Denver gave a sample mean pollution index x1 = 43. Previous studies show that ?1 = 15. For Englewood (a suburb of Denver), a random sample of n2 = 16 winter days gave a…5t. A magazine reports that women trust recommendations from a particular social networking site more than recommendations from any other social network platform. But does trust in this social networking site differ by gender? The following sample data show the number of women and men who stated in a recent sample that they trust recommendations made on this particular social networking site. Women Men Sample 150 170 Trust RecommendationsMade on the social networking site 111 102 (a) What is the point estimate of the proportion of women who trust recommendations made on this particular social networking site? (b) What is the point estimate of the proportion of men who trust recommendations made on this particular social networking site? (c) Provide a 95% confidence interval estimate of the difference between the proportion of women and men who trust recommendations made on this particular social networking site. (Round your answers to four decimal places.)The picture is attached. If it is not clear, the shaded region of the graph represents 5%. Thanks in advance.
