See attached file. Need step by step instructions of how to solve these problems: 2. The regression equation NetIncome = 2,277 + .0307 Revenue was fitted from a sample of 100 leading world companies (variables are in millions of dollars). (a) Interpret the slope. (b) Make a prediction of NetIncome when Revenue = 1,000.
Explain the concepts involved in hypothesis testing, including what hypothesis testing is, and an explanation of the four types of scales used to measure data. Discuss where and how common tests of differences, such as t-tests, ANOVAs and Chi-squares, are used to test hypotheses. Include an example of where and how common
A researcher wanted to invetigate whether there is a significant difference in the average age of instructors, assistant professors, assocated professors and full professors at a university. The faculty was selected at random and their ages were recorded. Use the collected data to complete the Anova chart given below. Instr
1.Lido Company's standard and actual costs per unit for the most recent period, during which 400 units were actually produced, are given below: Remember, you need to compute these variances based on the 400 units which were actually produced. Required: From the foregoing information, compute the following variances.
Use the following information for questions 1-3 (three treatments and a total of 15 observations) This information is necessary to complete your table. Source of Variation Sum of Squares Degrees of Freedom Between Treatments 64 Within Treatments 96 1. The
How would I put it in to a spreadsheet to test the data? An experiment is set up where we have an independent variable (IV). This is something that we would manipulate. We then observe the outcome of the manipulation, and see if there are any changes in behavior. This would be called the dependent variable (DV). We only
A bank conducts a survey in which it randomly samples 400 of its customers. The survey asks the customers which way they use the bank the most (1) interacting with a teller at the bank, (2) using ATM's, or (3) using the bank's Internet banking service. It also asks their level of satisfaction with the service they most often u
A pharmaceutical company has developed a drug that is expected to reduce hunger. To test the drug, three samples of rats are selected with n=10 in each sample. The first sample receives the drug everyday. The second sample is given the drug once a week, and the third sample receives no drug at all. The dependent variable is the
See attached data file. One Sample Hypothesis Testing Paper - Real Estate Describe the results of a hypothesis test of one population mean or population proportion. Team B Bank wants to open a branch in one of the townships based on best price per square footage. They want a test run to see where their best option is.
1. Two aptitude tests are currently being used to screen applicants for a certain position within a company. The question arose as to whether the two tests are comparable, i.e., whether they yield the same results. Six applicants were selected at random to take both tests (in a random order). The following scores were recorded:
We have two drugs for the control of depression. Both are effective. However, we want to determine whether the motor-perceptual coordination of subjects under the effects of these drugs is not significantly affected. The researcher selects a sample of 30 participants and divides it randomly into three groups: one
A researcher looks at the effect of 3 different drugs on 3 different groups of 10 people. Numbers refer to stress levels, with lower numbers being lower stress. Drug 1 Before After 25 18 23 20 27 19 27 22 21 17 30 18 22 15 20 19 25 17 29 20 Drug 2 Before After 26 2
The following problems need to be worked and show work. If you report the output please, if not, just give solution to problems. OTA106049 4. A researcher has constructed an 80% confidence interval of ... a. What would happen to the width of the interval if the researcher had used a larger sample size? (Assume other factors ar
Introduction to Estimation and Analysis of Variance: Why birds migrate. One possible explanation for why some birds migrate and others maintain year round residency in a single location is intelligence. Specifically, birds with small brains relative to their body size are simply not smart enough to find food during the winter and must migrate to warmer climates where food is easily available (Sol, Lefebvre, & Rodriguez-Teijeiro, 2005). Birds with bigger brains, on the other hand, are more creative and can find food even when the weather turns harsh. Following are hypothesis data similar to the actual research results. The numbers represent relative brain size for the individual birds in each sample.
One possible explanation for why some birds migrate and others maintain year round residency in a single location is intelligence. Specifically, birds with small brains relative to their body size are simply not smart enough to find food during the winter and must migrate to warmer climates where food is easily available (Sol, L
ANOVA Analysis Please provide detailed information and answer each instance. Bring to mind a real-world situation or problem that could be addressed using a one-way analysis of variance (ANOVA). For this situation or problem: 1. Clearly identify the independent and dependent variables you would study, including the n
The following data are from an experiment comparing three conditions with a separate sample of n = 4 in each treatment. a. Use an ANOVA with ? = .05 to determine whether there are any significant difference among the three treatments. b. Compute ?2 foe these data. Treatment __________________________________
These will require using SPSS. The Howell Data set is attached: 1. Open the Howell data set in SPSS. Using the hypothesis testing procedure select any appropriate independent and any appropriate dependent variable from the Howell data set. Using the variables perform an independent-samples t test in SPSS, and generate syntax
PROBLEM-1: Two-Sample HypothesisTest for Proportion Two movies were screen-tested at two different samples of theaters. Mystic River was viewed at 80 theatres and was considered a success in terms of box office sales in 60 of these theaters. Swimming Pool was viewed at a random sample of 100 theaters and was considered a suc
15) Consider the Midcity Pricing Structure case we discussed. We would like to study how the selling price of properties varies by neighborhood (recall that there were three neighborhoods). As such, the output from doing an ANOVA on the data set with respect to neighborhood yields the following: ANOVA Summary Total Sa
I need to know how to calculate this by using TI84 or minitab: A study was conducted in which a random sample of 24 HS students was asked to give their grade point average (GPA). The block design below shows the GPAs of male and female and students from four different age groups. Use technology tool and the block design to
Solve for the following problem as well as write the results and present it as well as you would do for publication. Present any revelant data in SPSS. First-born children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that first-borns have undivided attenti
A marketing analyst for a major shoe manufacturer is considering the development of a new brand of running shoes. The marketing analyst wants to determine which variables can be used in predicting durability (or effect of long-term impact). Two independent variables are to be considered, X1 (FOREIMP), a measurement of the forefo
Given the following number of hours between breakdowns for 4 machines, are the machines significantly different? If so, how are they different? Which machine is the best? Which machine is the worst? You are to perform a thorough and complete analysis of the data. Use alpha = .05 for all tests. Machine 1 Machine 2 Machine 3 M
Question 1 [Refer to the file Q1.xls for the data] a) Test the null hypothesis that six samples of word counts for males (columns 1, 3, 5, 7, 9, 11) are from populations with the same mean. Print the results and write a brief summary of your calculations b) Test the null hypothesis that the six samples of word counts fo
Car Emissions: Listed below are measured amounts of greenhouse gas emissions from cars in three different categories. The measurements are in tons per year, expressed as CO2 equivalents. Use a 0.05 significance level to test the claim that the different car categories have the same mean amount of greenhouse gas emissions. 4-
#12, 641 Femur Injury in a Car Crash - Listed below are head injury data from crash test dummies. These measurements are in hic, which denotes a standard head injury criterion. Use a 0.05 significance level to test the null hypothesis that the different car categories have the same mean. Small Cars: 290, 406, 371, 544, 37
In this module of your SLP, you will continue your literature review regarding your chosen topic, and you will locate in particular one article that uses inferential statistical procedures that were overviewed in this module (that is, a dependent or independent t-test or ANOVA.) You will describe the study identifying: (a)
The following data were obtained from an independent-measures research study comparing three treatment conditions. Use an ANOVA with α = .05 to determine whether there are any significant mean difference among the treatments. Treatment I ` II III 2 5 7 N=14 5 2 3 G=42 0 1 6 ∑X2=182 1 2 4 2
The Texas Transportation Institute at Texas A&M University conducted a survey to determine the # of hours per year drivers waste sitting in traffic. Assume the sample data for six drivers in each of the these cities show the following # of hours wasted per year sitting in traffic. Denver Miami San Francisco 70
See data file attached. Directions: You may include the statistical software output, but you must also include a well-written explanation of the findings. Be sure to answer the question asked in each problem, and explain why, with reference to your output. If you calculate the answers manually, be sure to show your work. I