A market researcher's claim is that women spend more time each day on Facebook than men.  If p1 represents the proportion of women on Facebook and p2 represents the proportion of men on Facebook, how would the researcher's claim be represented? a. p1 = p2 b. p1 > p2 c. p1 < p2

researcher wants to see if the patients who receive the recommendation to change their diet have less success lowering cholesterol compared to a prescription of meds. Arandom sample of some patients who received the recommendation to change their diet and others who were prescribed meds was taken. The results of how many did or did not lower their cholesterol are shown below: Data on Diet vs. Meds for Weight Loss Diet Meds Yes| 362 528 No | 199 249 What can be concluded at the a = 0.10 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer (please enter a decimal) H1: Select an answer V Select an answer v (Please enter a decimal) Select an answer V b. The test statistic (please show your answer to 3 decimal places.) c. The p-value = d. The p-value is ? va e. Based on this, we should Select an answer f. Thus, the final conclusion is that .. (Please show your answer to 4…

A drug company claims that an allergy medication causes headaches in 5% of those who take it.A medical researcher believes that more than 5% of those who take the drug actually get headaches.   Identify the population(s): All individuals who take the medication. The proportion of those who take the drug who get a headache. What is the variable being examined for individuals in the population(s)? Whether or not an individual who does not take the drug gets a headache. Whether or not an individual takes the correct dosage of the drug. Whether or not an individual who takes the drug gets a headache. Is it categorical or quantitative? [Proportions are Categorical. Mean values are Quantitative.] Categorical Quantitative Identify the parameter(s): The proportion of those who take the drug who get a headache. The mean amount of medication taken. The number individuals who take the medication. What kind of hypotheisis test is this? 1 population mean 2 population means 2…

Camden read about a study in which 200 vegetarians were asked to sample a fruit bar. The study reported that 170 of the 200 vegetarians surveyed disliked the bar. The study had a margin of error of 4%. Which statement can be concluded from this report?   A. It is likely that between 81% and 89% of vegetarians will dislike the fruit bar.   B. It is likely that between 81% and 89% of people will dislike the fruit bar.   C. Approximately 85% of people who like fruit will dislike the fruit bar.   D. Approximately 85% of people surveyed do not like fruit.

A city official would like to know if there is public support for increasing funding for arts programs. To collect data, the city official stands outside a concert hall after a show and surveys every 25th person to exit and asks their opinion about raising funds for the arts. Which of the following describes the population in this scenario? all residents of the city the members of the city council all city residents who support the arts the people surveyed by the city official

A fundraiser is offering a small gift to people making a donation.  The donor can choose one of four gifts: a mug, a t-shirt, a plush toy, or a water bottle.  The fundraiser would like to know if any of the gifts were more or less popular or were they equal in preference.  The data for n = 40 donors are below:

Same-sex marriage was legalized across Canada by the Civil Marriage Act enacted in 2005. A poll conducted for the Globe and Mail newspaper in July 2005 of 1000 Canadians asked whether this bill should stand or be repealed. The responses were 55% should stand, 39% should repeal, and 6% don’t know. You are interested in whether the population proportion of Canadian adults who believed the bill should stand differed from 0.50.  Let denote the population proportion of Canadian adults who believed it should stand at that time. For testing  against:   Question: Calculate the standard error, the test statistic, and interpret it. What is the p-value and interpret the p-value?

A marketing manager for a large cafeteria chain wished to investigate sales of coffee (i.e., sales is the variable she is trying to understand). Fourteen cafeterias that were similar in such respects as volume of business, type of clientele, and location were chosen for data collection. Data were collected on sales of coffee (in hundreds of gallons) and the number of coffee dispensers within the cafeteria. The results are shown below.   Sales Number of Dispensers 631.9 1 628 1 692.5 2 688.4 2 747.4 3 773.3 3 791.4 4 803.4 4 838.7 5 879.6 5 881 6 841.1 6 860.6 7 883.8 7 Create a scatter plot and then fit a quadratic model to predict sales from the number of dispensers. If we define y to be sales (in hundreds of gallons) and x to be the number of dispensers, what is the correct quadratic model?   Group of answer choices   a. y=-6.397x2+92.85x+538.06   b. y=41.67x+614.829   c. y=0.022x-12.979   d. y=3.348x10-5x2-0.0292x+6.09   e. y=623.521x0.180

I need help with 2, 3 and 6.

A college president wanted to know how 10-year-after-graduation salaries for academic majors (English, psychology, math, etc.) compared to salaries for careeroriented majors (business, engineering, computer science, etc.). She matched 84 academic majors at her college with 84 career-oriented majors on the basis of SAT scores and GPA. She found MAcademic = $59,250, MCareer =$61,000, sD = 9,500. Use an alpha of .05 and a two-tailed test to determine if there is a difference in salaries.