A college wishes to make the claim that 50% of it's graduates earn more than $70,000 ten years after graduation. The distribution of salaries of these graduates is completely unknown. A sample of 15 ten year alumni were surveyed and they reported their salaries to be (see attached). Is there evidence, at the 5% significance
Problem #5 Reis, Inc. Reis, Inc., a New York real estate research firm, tracks the cost of apartment rentals in the United States. In mid-2002, the nationwide mean apartment rental rate was $895 per month (The Wall Street Journal, July 8, 2002). Assume that, based on the historical quarterly surveys, a population standard de
A lab technician is tested for her consistency by taking multiple measurements of cholesterol levels from the same blood sample. The target accuracy is a standard deviation of 1.2 or less. If 20 measurements are taken and their standard deviation is 1.8, is there enough evidence to reject the claim that her standard deviation
STUDENT 1 STUDENT 2 STUDENT 3 21 22 10 10 26 23 24 10 23 31 30 26 19 11 10 Need help running the 5 step hypothesis process
Please provide Detail (No excel). A metropolitan bus system sampler's rider counts on one of its express commuter routes for a week. Use the following data to establish whether rider ship is evenly balanced by day of the week. Let alpha = 0.05. Day Monday Tuesday Wednesday Thursday Friday Rider Count 10 34 21 57
Please see the attached file. The mean consumption of beef in 2000 by American adults was 63.5 pounds. A sample of 36 people recently taken yielded the following data, in pounds, on year 2007 beef consumption. Test the claim that the amount of beef consumption has changed since 2000.
The 65 students in a class at the University of Soda were given blinded evaluations of pairs of cola drinks. For the 65 comparisons of Coke and Pepsi making up the sample results, Pepsi was preferred 29 times. a. Is the above information sufficient for you to be completely certain that more than 50% of all students at that u
Please see the attached file. A hypothesis test is used to test a claim. You get 1.75 as your test statistic and 1.59 as your critical value for a right-tailed test. Which of the following is the correct decision statement for the test? A. Reject the null hypothesis B. Claim the null hypothesis i
Based on the attached data set information, it is required to form a hypothesis statement as outlined below. Thank you in advance for your help! 1. What data are you going to use? What sections of the data set are you going to use? Make sure it is ratio or interval numerical data you are going to use. 2. What is your r
Please read the questions carefully and use Excel to solve the problems. Thank you. One hundred people were asked which of four brands of Cola they preferred...
Data was collected from a random sample of eight men and 10 women currently undergoing treatment for hypertension. Each person reported the number of cigarettes smoked each day and each was assigned a numerical value representing their risk of cardiovascular disease (CVD). The risk assessment was a number from 0 - 100 and was ba
15.18 Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major. Research question: At alpha = .01, is the degree of certainty independent of credits earned? 15.22 A student team examined parked cars in four diff
Hypothesis Test: Mean vs. Hypothesized Value 250,000.0000 hypothesized value 214.4538 mean Data 34.7157 std. dev. 6.8083 std. error 26 n 25 df -36688.37 t 1.0000 p-value (one-tailed, upper) Team: Above are the calculations for our project which I performed in Megastat and then manually as well. I am
Formulate both a numerical and verbal hypothesis statement regarding your research issue. - 250 words (includes introduction) Verbal: The average (mean) cost of a three bedroom home is less than or equal to $250,000. Null Hypothesis: Ho: u < $200,000 Alternate Hypothesis: Ha u > $200,000 We all know the average cost
Show as much of your work as possible. 1. A friend of yours is beginning her master's thesis in which she is required to conduct a statistical study. She wants to examine whether students who attend day care with other children prior to starting kindergarten show higher academic achievement compared to those who stayed at ho
In a randomized, double-blind, placebo-controlled trial of children, echinacea was tested as a treatment for upper respiratory infections in children. "Days of fever" was one criterion used to measure effects. Among 337 children treated with echinacea, the mean number of days with fever was 0.8, with a standard deviation of 1.50
1) It has been claimed that the mean age of all FHSU Virtual College statistics students is at most 30 years old. Using the age data collected from this class, test this hypothesis--that is does the data set of our class statistically support this claim or is the mean age value likely higher? Justify your answer through a form
Test whether the proportion of women earning $140,000 or more is significantly different from the proportion of men earning $140,000 or more. Show all parts of testing process. See the attached file for more data. Use a calculator. Construct a 90% confidence interval for the proportion of women (out of all women) earning $140
A company has been accused of double counting such that if race and gender are related there is double counting. Caucasian African American All other Male 72 48 28 Female 24 24
The executive committee has learned that the average salary for executives in the industry is $140,000, and the committee is concerned that they are not being paid enough. Using the random sample, test the committee's idea that the mean of executive salaries is at least equal to that of the industry standard. You may assume a=.0
Please see attached. Please write out answers in formulas. Please provide step by step with answers.
A survey of n = 703 randomly selected workers showed that 61% of those respondents found their jobs through networking. (1) Please state the corresponding null and alternative hypotheses to determine if most (more than 50%) workers get their jobs though networking; (2) Please find the value of the test statistic for the claim that most (more than 50%) workers get their jobs though networking.
A survey of n = 703 randomly selected workers showed that 61% of those respondents found their jobs through networking. (1) Please state the corresponding null and alternative hypotheses to determine if most (more than 50%) workers get their jobs though networking; (2) Please find the value of the test statistic for the c
Please see attachment for question. Please show all work, thanks. Enrollment data over the past ten years indicates that 70% of the students taking elementary statistics at FHSU are female? Is the enrollment in this semester's virtual class significantly different from this claim, as measured statistically? Justify your ans
2. Next we will again analyze the Student Survey data from PHC 6050 and STA 6126 stored in the SPSS data file bothclasses.sav. Using ?=0.05, test whether the 'population' mean weights of the two classes are the same. Next, test whether the 'population' mean heights of the two classes are the same (delete the observation correspo
Please help with these questions. I need to be able to understand how to do them. Please write out all steps from beginning to end , formulas etc. (need answers too so I can double check myself) please do not use excel, I need to see what I am trying to learn. Please see attached. Chapter 6 questions 1. A medical s
I have to perform the five-step hypothesis test on the data attached pertaining to the feasibility of outsourcing a department such as customer service within the company, AT & T. I do not know how to perform a five-step hypothesis.
I need help writing a Business Problem Proposal using a null hypothesis. Here are sample business problems: * Talk about the effect of no smoking laws on the tobacco industry. Will the trend in no smoking laws affect cigarette sales? You can develop a null from that. * Dunkin' Donuts is trying to infiltrate Starbucks' mark
A newly installed automatic gate system was being tested to see if the number of failures in 1,000 entry attempts was the same as the number of failures in 1,000 exit attempts.
Please see the attached file; Do a complete hypothesis, include the hypothesis, decision rule, calculation of test statistic, decision, interpretation and t value. A newly installed automatic gate system was being tested to see if the number of failures in 1,000 entry attempts was the same as the number of failures in 1,000 e
Periodically, Merrill Lynch customers are asked to evaluate company's financial consultants and service.
Please see the file attached. Show all work solve in excel only.