A survey was conducted two years ago asking college students their top motivations for using a credit card. You think this distribution has changed.You randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been achange in the distribution? Use a = 0.025. Complete parts (a) through (d).ResponseOld Survey %29%New Survey Frequency, fRewards110Low ratesCash backDiscounts23%9621%1097%46Other20%64O B. The distribution of motivations is 110 rewards, 96 low rate, 109 cash back, 46 discounts, and 64 other.O C. The distribution of motivations is 29% rewards, 23% low rate, 21% cash back, 7% discounts, and 20% other.Which hypothesis is the claim?o Ho(b) Determine the critical value, Yo, and the rejection region.X = 11.143 (Round to three decimal places as needed.)Choose the correct rejection region below.Oc. X

(c) The expected frequencies are calculated as,

Answered: A survey was conducted two years ago…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

need a-c
Polls. America OnLine published a survey question. Among the 2,300 Internet users who responded, 20% answered “yes” and the others answered “no.” For the “yes” responses, what is the value of pn? What is fundamen-tally wrong with this survey?
$8%, ENT Circle the best answer for the multiple choice scenarios below 11. Researchers monitor the growth of rats for one year and recond their dat (A) Survey [B] Observational Study 12. Researchers ask people with chronic headaches if they eat a lot of sugar daly [B] Observational Study (A) Survey (C) Experiment 13. Researchers split people into two groups to find out more about sleep. Group A ate suger before they asleep. Group B ate protein before they fell asleep. [A] Survey [B] Observational Study (C) Experiment 14. A cashier asks every 5th customer if they found everything they needed today. [C] Self-selected [D] Simple Random [A] Systematic [B] Convenience 15. A researcher divides a sample of adults into subgroups by ages: 18-29, 30-39, 40-49, 50-59, and 60 and above. She then asks one person from each subgroup about their opinion on the current mayor. (D) Stratified (C) Self-selected [A] Cluster [B] Simple Random 16. Paige asks everyone that rides her bus if they prefer gummi…
Medical Marijuana? An international poll of physicians was conducted on the New England Journal of Medicine website asking “Do you believe that the overall medicinal benefits of marijuana outweigh the risks and potential harms?” Identify the a. specified attribute. b. population. c. population proportion. d. Of the 1446 physicians who responded, 76% said yes. Is the proportion 0.76 (76%) a sample proportion or a population proportion? Explain your answer.
Give proper explanation
Given: I don’t understand how to compute the p-value below (problem 6): Sample size (n) = 12 Mean difference (Md) = 1.2 points SS = 33 Level of significance (a) = 0.05 Formula used: S d = √ S S n − 1 S d = S S n − 1 S E = S d √ n S E = S d n T h e t e s t s t a t i s t i c i s , t = M d S E Theteststatisticis, t= M d S E Here test statistic follows t-distribution with n-1 degrees of freedoms. Calculations: Here we have to test the hypothesis that, H0: μd =0 Vs H1: μd ≠ 0 Where μd is the population mean difference. S d = √ S S n − 1 = √ 33 12 − 1 = √ 33 11 = 1.73 S E = S d √ n = 1.73 √ 12 = 0.50 T h e t e s t s t a t i s t i c i s , t = M d S E = 1.2 0.5 = 2.4 Sd= S S n − 1 = 33 12 − 1 = 33 11 =1.73 SE= S d n = 1.73 12 =0.50 Theteststatisticis, t= M d S E = 1.2 0.5 =2.4 Test statistic (t) = 2.4 Degrees of freedom (df) = 12-1 =11 Now we have to find P-value By using statistical table of t-distribution we get: P-value = 0.0352 P-value < a Reject H0 at 5%…
During a season, the 40th percentile for points scored per player in a game is eight. Interpret the 40th percentile in the context of this situation. Forty percent of players scored 8 points or Sixty percent of players scored 8 points or more less
A study was done to look at the relationship between number of lovers college students have had in their lifetimes and their GPAs. The results of the survey are shown below. Lovers 4 8 3 7 0 6 5 6 GPA 2.7 2.3 3.4 2.4 3.5 2.9 2.7 2.8 r2r2 = (Round to two decimal places) Interpret r2r2 : There is a large variation in students' GPAs, but if you only look at students who have had a fixed number of lovers, this variation on average is reduced by 80%. Given any group of students who have all had the same number of lovers, 80% of all of these studetns will have the predicted GPA. 80% of all students will have the average GPA. There is a 80% chance that the regression line will be a good predictor for GPA based on the number of lovers a student has had. The equation of the linear regression line is: ˆyy^ = + xx (Please show your answers to two decimal places) Use the model to predict the GPA of a college student who as had 7 lovers.GPA = (Please round your…
CURSED MOVIE Released in 1956, the movie The Conqueror attracted considerable attention because many members of the cast and crew died from cancer supposedly resulting from exposure to radioactive fallout. The movie was shot a short distance from a site in Nevada where above-ground tests of atomic weapons were conducted. Among the 220 cast and crew members, 91 developed cancer. According to the National Cancer Institute, for that time period and for the age cohort, the incidence of cancer was about 40%. Use a 0.05 significance level to test the claim that the sample of cast and crew members is from a population in which the rate of cancer is greater than 40%. What do you conclude about the movie being a curse? Find null hypothesis and alternative hypothesis. Find test statsistic. Find P-value. How do you find p hat
No written by hand solution The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States were 459 eight-ounce servings (Coca-Cola Company website, February 25, 2017). Suppose you are curious whether the consumption of CocaCola beverages is higher in Atlanta, Georgia, the location of Coca-Cola’s corporate headquarters. A sample of 61 individuals from the Atlanta area showed a sample mean annual consumption of 479.5 eight-ounce servings with a standard deviation of s = 90 ounces. Using α = .01, does the sample support the conclusion that means annual consumption of Coca-Cola beverage products is higher in Atlanta? Use both the critical value and p-value approach to test the hypothesis that H0: µ >459 in Atlanta vs. the 1-sided alternative. 7. From data from the past 10 years, we know that South Mall Theater averaged 600 patrons per day, with variance equal to 1000. This year, based on data from 25 random days, we found that the…
A social researcher wishes to know if there is a relationship between gender and perspective on the death penalty. Data has been collected on 228 persons and the results are displayed in the table below. Is there evidence of a relationship between gender and perspective on the death penalty? Gender Favor Oppose Total Male 70 42 112 Female 68 48 116 Total 138 90 228 Copy Data Step 4 of 8 : Find the value of the test statistic. Round your answer to three decimal places.
Plz answer fast

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS