To state the null and alternative hypothesis you would use in your study.
Answer to Problem 1RE
Explanation of Solution
It is given in the question that a report in the journal of medicine notes growing evidence that the herb can cause urinary tract cancer in those who take it. Suppose we are asked to design an experiment to study this claim. Then we have the subjects who have used this herb and those who do not have used this herb. Thus, the null hypothesis is that there is no difference in cancer rates and the alternative hypothesis is that the rate is higher for those using the herb. So, we define hypotheses as:
Want to see more full solutions like this?
Chapter PV Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
Additional Math Textbook Solutions
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Algebra and Trigonometry (6th Edition)
College Algebra (7th Edition)
Elementary Statistics
- Example Solve in series the equation d²y dx² - -xy = 0.arrow_forwardA clinic compared healthy dogs it owned with healthy pets brought to clinic to be neutered. The summary statistics for blood cholesterol levels (milligrams deciliter of blood) appear in the following table: Types n Average Standard deviation Pets (P) 51 196 68.1 Clinic (C) 51 185 40.7 Difference (d = P - C) 51 11.0 44.0 (a) Find a 99% confidence interval for the difference in mean blood cholesterol levels dogs brought to the clinic (P) and dogs owned by the clinic (C).(Round your answers to 4 decimal places, if needed.) ( , ) b) Based on this confidence interval, can we conclude there is some differences in mean blood cholesterol levels between the two groups? Yes, since the interval is completely above 0. No, since the interval is completely above 0. Yes, since the interval contains 0. No, since the interval contains 0.arrow_forwardIt is believed that animals living in northern regions have shorter appendages than animals living in southern regions. Random samples of birds were selected from each group and wing lengths for birds (in millimeters) were measured. The following table gives summary statistics. Region n Average Standard deviation Northern (N) 30 118.2 1.7 Southern (S) 30 119.5 3.6 Difference (d = N - S) 30 -1.3 1.5 (a) Find a 98% confidence interval for the mean difference of wing lengths of birds between the northern regions and the southern regions. (Round your answers to 4 decimal places, if needed.)( , ) (b) Based on this confidence interval, is there enough evidence to support the belief? Yes, since the interval contains 0. No, since the interval is completely below 0. No, since the interval contains 0. Yes, since the interval is completely below 0.arrow_forward
- Your investment advisor proposes a monthly income investment scheme which promises a variable income each month. You will invest in it only if you are assured an average monthly income of at least 780 dollars. Your advisor also tells you that, for the past 41 months, the scheme had incomes with an average value of 816 dollars and a standard deviation of 92 dollars.(a) Create a 95% confidence interval for the average monthly income of this scheme. (Round your answers to 4 decimal places, if needed.)arrow_forwardA game at the local annual Apple Festival has players reach into a covered tub to pull out an apple. In the tub are 10 red apples, 3 green apples, and 1 yellow apple. Let R be the event of drawing a red apple, G be the event of drawing a green apple, and Y be the event of drawing a yellow apple. If a player draws a green apple, then the player has the choice of taking a $2 prize or (leaving the green apple out) reaching back into the tub for a chance to draw the yellow apple (which gives a prize of $20). There is no prize for drawing a red apple. First, find P(Rc). What does this mean regarding winning a prize on the first draw? Then, if on the first draw Deion pulls out a green apple, then decides to make a second draw instead of taking the $2 prize, what is the probability Deion will win at least $2?arrow_forwardThe table describes the distribution of a random sample S of 200 individuals, arranged by education level and income. Let events be defined as follows: A = the event the subject makes 0-25,000 dollars per year B = the event the subject makes 25,000-50,000 dollars per year C = the event the subject makes 50,000-75,000 dollars per year D = the event the subject makes 75,000-100,000 dollars per year E = the event the subject makes 100,000-125,000 dollars per year F = the event the subject makes 125,000-150,000 dollars per year G = the event the subject makes more than 150,000 dollars per year H = the event the subject has not graduated high school I = the event the subject has only graduated high school J = the event the subject has some college (but not a Bachelor’s degree) K = the event the subject’s highest level of education is a Bachelor’s degree L = the event the subject’s highest level of education is a graduate degree M = the event the subject has earned a post-graduate degree…arrow_forward
- The Graduate Record Examination (GRE) is an exam taken by students who are attempting to get into graduate schools. The exam has three sections, including a math section titled "Quantitative Reasoning. The scores on this section of the exam follow an approximately normal distribution with a mean of 150 and a standard deviation of 9. a. Label the values for the mean, along with the values for 1, 2, and 3 standard deviations away from the mean. b. What percent of GRE test takers score between 141 and 168? c. What proportion of GRE test takers score above 135? d. In order to get into Harvard graduate school, a GRE test taker would need to be in the top 9% of all test takers. What is the minimum score needed to achieve this?arrow_forwardDate Participant numb Student November 3, 2024 School(in minute Non-school(in n WIFI/mobile data Yes/No 1 Berico, Luthze P. 2 Bertillo, shaina venus C. 5 510 Wifi Yes 10 360 Data Yes 3 Magdaluyo, john gabriel D. 10 300 Wifi Yes 4 Olayres, john christopher A. 10 360 Data Yes 5 Macuja, Hannah 10 360 wifi Yes November 4, 2024 1 Berico, Luthze P. 240 660 Wifi Yes 2 Bertillo, shaina venus C. 10 300 Data Yes 3 Magdaluyo, john gabriel D. 5 300 Wifi Yes 4 Olayres, john christopher A. 10 300 Data Yes 5 Macuja, Hannah 10 300 wifi Yes November 5, 2024 1 Berico, Luthze P. 300 600 Wifi Yes 2 Bertillo, shaina venus C. 20 70 Data Yes 3 Magdaluyo, john gabriel D. 5 300 Wifi No 4 Olayres, john christopher A. 15 240 Data Yes 5 Macuja, Hannah 20 70 Wifi Yes November 6, 2024 1 Berico, Luthze P. 480 180 Wifi Yes 2 Bertillo, shaina venus C. 60 150 Wifi No 3 Magdaluyo, john gabriel D. 5 360 Data No 4 Olayres, john christopher A. 30 240 wifi Yes 5 Macuja, Hannah 60 150 Data No November 7, 2024 1 Berico,…arrow_forwardWhat is the critical value? x^2? does the psychology reject or not?can the psychologist conclude or not?arrow_forward
- Statisticsarrow_forwardUse the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant A B C D Order Accurate 326 269 234 125 Order Not Accurate 31 59 32 10 If two orders are selected, find the probability that they are both accurate. Complete parts (a) and (b) below. a. Assume that the selections are made with replacement. Are the events independent? The probability is The events independent. (Do not round until the final answer. Round to four decimal places as needed.)arrow_forward2. (5 Points) (A) Design a double-sampling plan using Grubb's Tables with my-2m. -0.05, and p-0.10 where p-0.01 and p-0.10. Holding the stipulated consumer's risk is of primary concern if there are alternatives. (B) Under the above double sampling plan, find the probability of accepting l with 5% defective units.arrow_forward
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman