Consider the summary of a survey conducted by a marketing firm regarding environmental protection policies among residents of two regions of the country. Policy Good for. Business & for Business &Region1, "Good for Business & Jobs" is the dominant Policy Threat Find the p-value for testing the hypothesis that for Region Jobs Region1 Region2 158 Jobs opinion on environmental protection policies by taking more than half of the support of responders of the 190 125 140 survey. Type your numerical answer here. Numbers only
Q: picture Click here for the Excel Data File a. Conduct an ANOVA test at the 5% significance level to…
A: We have given that in ANOVA table, P-value = 0.0003
Q: d) Interpret your interval in simple language in context of the problem. (your answe should be…
A: Given: Sample size = 31 Sample mean = 153.60 Sample standard deviation = 32.45 Significance level…
Q: A sales manager collected the following data on annual sales for new customer accounts and the…
A: Regression equation =y = 82.1+4.6x
Q: A A B Figure 2: A two-stage binary communication channel d. Illustrate the two-stage binary…
A:
Q: Find the area under the standard normal curve between -0.88 and 0.36.
A:
Q: According to the steps of hypothesis testing, if you are using an independent samples t test, which…
A: For independent sample t -test statistics. First know about population mean μ and sample mean,…
Q: QUESTION 30 Using basic demographic information (age, household income, marital status, etc.), you…
A: Given that, a random sample size 184 customers who accepted a special balance transfer offer from a…
Q: Assume a regression model is y= -4.72+3.27. give a forecast of y when x= 25.62
A: Answer is in step 2
Q: 3. Using the digits 1, 2, 3 and 4, how many 4 digit numbers can be formed if a) The first digit must…
A: here use counting principle for combination nr = n! (n- r)! × r!
Q: ACTIVITY 5. Feed Me... Meow- Directions: Do what is asked. Write your answer on a separate sheet of…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: 3. Use the given information to find the p-value. The test statistic for a two tailed test is z =…
A:
Q: A 2019 poll of 1234 randomly selected teenagers asked the question, "do you write a thank you note…
A: Given that Sample size n =1234 Population proportion p=0.65
Q: which of the following sample data: sample size= 100 sample mean= 340z/hr sample variance= 90z/…
A:
Q: Salary Mean 34096.3 Standard Error 1570.314564 Median 36705.5 Mode #N/A Standard Deviation…
A: Central tendency is a descriptive statistics.
Q: The null and alternative hypotheses in statistical hypothesis testing are always statements aBoul. O…
A: The first step of hypothesis testing is writing down the hypotheses.
Q: Test the claim that the mean GPA of night students is larger than 2.8 at the 0.10 significance…
A:
Q: when data are classified using the following format: under 20, 20-<30, 30- <40 etc then the data…
A: Given : under 20 , 20 - <30 , 30 - <40
Q: When 89 people used the Atkins diet for one year, their mean weight change was 6.4 lb (based on…
A: We have given that, mean weight change (x̄) = 6.4, standard deviation (s) = 6.8 and sample size…
Q: 9. Find the standard deviation of a one dollar European Roulette bet. For European roulette, a…
A:
Q: Generating Order Statistics: There are 100 identical components operating inde- pendently in a…
A:
Q: An urn contains exactly three balls numbered 1, 2, and 3, respectively. Random samples of two balls…
A: Consider, the samples are, X1 X2 xav 1 2 1.5 1 3 2 2 1 1.5 2 3 2.5 3 1 2 3 2 2.5 1…
Q: Using Excel, conduct a t-test (at the alpha = 0.10 significance level) on whether the mean of X1 is…
A: The test hypotheses are: Null hypothesis: H0: μ = 100. Alternative hypothesis: H1: μ ≠ 100.
Q: uestion 2 In August, the probability that a thunderstorm will occur on any particular day is 0.1.…
A: Given data, the probability that a thunderstorm will occur on any particular day is 0.1 p=0.1…
Q: 7. Blood pressure is distributed Normally, with a mean of 85 mm and a standard deviation of 20 mm.…
A: Let X be the random variable from Normal distribution with mean (μ) = 85, standard deviation (σ) =…
Q: Which of the following statements about the z-distribution (Normal) and t-distribution iš čórréčt? O…
A: Solution
Q: Let {Xn}1 be a sequence of random variables. (i) Prove that if the sequence converges in…
A:
Q: the yield to maturity for uired rate of return is 1:
A:
Q: Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 1 2 3 4…
A: Dogs(X) 0 1 2 3 4 5 P(x) 0.632 0.232 0.088 0.026 0.014 0.008
Q: A student was asked to find a 98% confidence interval for widget width using data from a random…
A: Given 98% CI for population mean μ 10 < μ < 34.7 , n=29
Q: Which of the following example of a systematic probability sampling? *
A: here use basic of sampling method
Q: You're a sociologist studying whether grocery prices are different in the inner cities than they are…
A: There are 2 independent samples which are SU and IC. We have to test whether the inner city prices…
Q: The following table gives information on the average saturated fat (in grams) consumed per day and…
A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case…
Q: A television show conducted an experiment to study what happens when buttered toast is dropped on…
A: Given that Sample size n =45 Favorable cases x =21 Sample proportion p^=x/n =21/45 =0.4667
Q: HEIGHT OF GRADE 11 STUDENTS
A: Note: Please repost remaining sub-parts as I can author only 3 sub-parts as per my policy Given…
Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…
A:
Q: In a hypothesis test with the null and alternative hypotheses Ho:u 60 and H1:u # 60, a random sample…
A:
Q: There are TWO (2) questions in this question paper. For the calculation part (Q1) all answers must…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: In a hypothesis test with hypotheses Ho:u = 90 and H1: 90, a random sample of 16 elements selected…
A:
Q: What is the probability that both of your numbers match the ones selected?
A: The lottery in an extremely small state consists of picking two different numbersfrom 1 to 10. Ten…
Q: 2 An experiment involves the tossing of a pair of dice, 1 green and 1 red, and recording the numbers…
A: Given: Let us consider that tossing a green and a red die and recording the numbers that appear on…
Q: I need help with stats/section 7.4 Please help with TI-84 commands, thanks A research center…
A: We have given that p = 29% = 0.29 p̂ = 31% = 0.31 n = 1100 α=0.10
Q: Given a recent outbreak of illness caused by E. coli bacteria, the mayor in a large city is…
A:
Q: In an experiment an analyst has observed that SSxy equals 212.35, SSx equals 237.16 and SSy =…
A: Given values: SSXY=-212.35 SSX=237.16 SSY=858.49
Q: Find the mean, variance and standard deviation for the grouped frequency distribution below. Class…
A: Given data is Class Frequency(f) 0 - 9.9 5 10 - 19.9 13 20 - 29.9 23 30 - 39.9 31 40 -…
Q: Describe the null and alternative hypotheses used in hypothesis testing
A: Hypothesis testing is one of the statistical inferential procedures.
Q: There are two random variables X and Y,
A: Given that ρXY=0.7 A=2.5X+1 B=4Y+2
Q: 2. In a certain country, license plate numbers have 3 letters followed by 3 digits. How many…
A: ( 2 ) For the given data How many different license plate numbers can be formed
Q: Using SPSS, analyze the relationship between respondents’ marital status (MARITAL) and whether they…
A: Given information: The investigator is specially interested to analyse the relationship between…
Q: The U.S. Census Bureau reported in that, people annual income for people who never married was…
A: Given that Sample size n =100 , for each group.
Step by step
Solved in 3 steps with 3 images
- 4. The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population.AMS communicates with customers who subscribe to cable television services through a special secured email system that sends messages about service changes, new features, and billing information to in-home digital set-top boxes for later display. To enhance customer service, the operations department established the business objective of reducing the amount of time to fully update each subscriber’s set of messages. The department selected two candidate messaging systems and conducted an experiment in which 30 andomly chosen cable subscribers were assigned one of the two systems (15 assigned to each system). Update times were measured, and the results are organized in Table AMS10.1. Email Interface1 4.13 3.75 3.93 3.74 3.36 3.85 3.26 3.73 4.06 3.33 3.96 3.57 3.13 3.68 3.63 Email Interface 2 3.71 3.89 4.22 4.57 4.24 3.90 4.09 4.05 4.07 3.80 4.36 4.38 3.49 3.57 4.74 1. Analyze the data in Table AMS10.1 and do a statistical test with hypothesis. Kindly discuss the reason you selected a…in 2021 Mulungushi University conducted a survey of its first year postgraduate students to collect demographic and health information for future planning purposes as well as to assess students' satisfaction with their postgraduate experiences. The survey revealed that a substantial proportion of students were not engaging in regular exercise whilst on campus, many felt their nutrition was poor (food prepared badly at the dining) and a substantial number were smoking (individual risk behaviors). In response to a question on regular exercise, 60% of all postgraduates reported getting no regular exercise, 25% reported exercising sporadically and 15% reported exercising regularly. In 2022, the University launched a health promotion campaign on campus in an attempt to increase health behaviors among postgraduate students. The program included modules on exercise, nutrition and smoking cessation. To evaluate the impact of the program, the MU again surveyed postgraduates and asked the same…
- Based on a survey of 12,344 U.S. college students and 6,729 Canadian college students, Kuo, Adlaf, Lee, Gliksman, Demers, and Wechsler (2002) report that alcohol use is more common among Canadian than U.S. students, but heavy drinking (five or more drinks in a row for males, four or more for females) is significantly higher among U.S. students than Canadian students. Is this an example of a survey research design?In recent years, many states have enacted tougher voter identification laws requiring a government issued photo ID. Proponents claim that these laws are necessary to reduce voter fraud. Opponents claim that voter fraud is rare and that since as many as 11% of eligible voters do not have the required identification, these tougher laws will discourage millions of minorities and low-income Americans from voting. The Washington Post conducted a national poll (July 7-19, 2012) and found that 1558 out of 2064 adults supported the tougher voter ID laws. 1)Construct a 95% confidence interval for the proportion of adults who approve of tougher voter ID laws. Document your work in the space provided below. Document how you computed the margin of error and the confidence interval in the space provided below. Round all numbers to 4 decimal places. 2)Is it likely that three-fourths of adults approve of these new laws?In a study conducted by Zogby International for the Democrat and Chronicle, more than 700 New Yorkers were polled to determine whether the New York state government works. Respondents surveyed were asked questions involving pay cuts for state legislators, restrictions on lobbyists, term limits for legislators, and whether state citizens should be able to put matters directly on the state ballot for a vote. The results regarding several proposed reforms had broad support, crossing all demographic and political lines. Suppose that a follow-up survey of 100 individuals who live in the western region of New York was conducted. The party affiliation (Democrat, Independent, Republican) of each individual surveyed was recorded, as well as their responses to the following three questions. Should legislative pay be cut for every day the state budget is late? Yes _________ No _________ Should there be more restrictions on lobbyists? Yes _________ No _________ Should there be term limits…
- A Pew Research study conducted in 2017 found that approximately 75% of Americans believe that robots and computers might one day do many of the jobs currently done by people.† Suppose we have the following data collected from nurses, tax auditors, and fast-food workers in which a higher score means the person feels his or her job is more likely to be automated. Nurse TaxAuditor Fast-FoodWorker 3 4 5 4 5 8 6 4 6 2 4 8 3 6 5 3 3 6 4 5 6 5 3 4 (a) Use ? = 0.05 to test for differences in the belief that a person's job is likely to be automated for the three professions. State the null and alternative hypotheses. H0: μNurse = μTax auditor = μFast-food worker Ha: μNurse ≠ μTax auditor ≠ μFast-food worker H0: At least two of the population means are equal. Ha: At least two of the population means are different. H0: Not all the population means are equal. Ha: μNurse = μTax auditor = μFast-food worker H0: μNurse = μTax auditor = μFast-food worker Ha:…A Pew Research study conducted in 2017 found that approximately 75% of Americans believe that robots and computers might one day do many of the jobs currently done by people.† Suppose we have the following data collected from nurses, tax auditors, and fast-food workers in which a higher score means the person feels his or her job is more likely to be automated. Nurse TaxAuditor Fast-FoodWorker 4 4 5 4 5 8 5 6 6 2 3 8 2 6 5 3 3 6 4 5 5 6 2 5 (a)Use ? = 0.05 to test for differences in the belief that a person's job is likely to be automated for the three professions. State the null and alternative hypotheses. 1. H0: μNurse = μTax auditor = μFast-food worker Ha: Not all the population means are equal. 2. H0: Not all the population means are equal. Ha: μNurse = μTax auditor = μFast-food worker 3. H0: At least two of the population means are equal. Ha: At least two of the population means are different. 4. H0: μNurse ≠ μTax auditor ≠ μFast-food worker…Eighteen percent of U.S.-based multinational companies provide an allowance for personal long-distance calls for executives living overseas, according to the Institute for International Human Resources and the National Foreign Trade Council. Suppose a researcher thinks that U.S.-based multinational companies are having a more difficult time recruiting executives to live overseas and that an increasing number of these companies are providing an allowance for personal long-distance calls to these executives to ease the burden of living away from home. To test this hypothesis, a new study is conducted by contacting 376 multinational companies. Twenty-two percent of these surveyed companies are providing an allowance for personal long-distance calls to executives living overseas. Does the test show enough evidence to declare that a significantly higher proportion of multinational companies provide a long-distance call allowance? Let α = .01.
- The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains. One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for the Sun Coast Times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The data in Sheet 7 show the meal prices ($) obtained for the 24 restaurants sampled. Use alpha = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. Sheet 7 Italian Seafood Steakhouse 12 16 24 13 18 19 15 17 23 17 26 25 18 23 21 20 15 22 17 19 27 24 18 31 Select one: a) Fstat = 7.33 > Fcrit = 3.47, insufficient evidence to reject the null…The University is considering changing the email system that they currently use. Since there are substantial learning costs associated with any new software, the University only wants to change to the new system if it is very confident that there is at least a 20% difference in the proportion of faculty and staff who say they like the new system. In a sample of 131 users of the current system, the University finds that 66 say they like the current system. In another sample of 91 experimental users of the “new” system, the University finds that 75 of them like the new system. When testing the hypothesis (using a 5% level of significance) that there is at least a 20% difference in the proportion of users who like the two systems, what is the test statistic? (please round your answer to 2 decimal places)Do well-rounded people get fewer colds? A study on the Chronicle of Higher Education was conducted by scientist at Carnegie Mellon University, the University of Pittsburgh and the University of Virginia. They found that people who have only a few social outlets get more colds than those who are involved in a variety of social activities. Suppose that of the 276 healthy men and women tested, n1=96 had only a few social outlets and n2=105 were busy with six or more activities. When these people were exposed to a cold virus, the following results were observed: Construct a 99% confidence interval for the difference in the two population proportions.