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Do we experience emotions differently? Do people from different cultures experience emotions differently? One study designed to examine this question collected data from 416 college students from five different cultures. The participants were asked to record, on a 1 (never) to 7 (always) scale, how much of the time they typically felt eight specific emotions. These were averaged to produce the global emotion score for each participant. Here is a summary of this measure:
Note that the convention of giving the standard deviations in parentheses after the means saves a great deal of space in a table such as this.
(a) From the information given, do you think that we need to be concerned that a possible lack of Normality in the data will invalidate the conclusions that we might draw using ANOVA to analyze the data? Give reasons for your answer.
(b) Is it reasonable to use a pooled standard deviation for these data? Why or why not?
(c) The ANOVA F statistic was reported as 5.69. Give the degrees of freedom and either an approximate (from a table) or an exact (from software) P-value. Sketch a picture of the F distribution that illustrates the P-value. What do you conclude?
(d) Without doing any additional formal analysis, describe the pattern in the means that appears to be responsible for your conclusion in part (c). Are there pairs of means that are quite similar?
STA510 Business Statistics Assignment. Case Study: Predicting the selling price of houses in the city of Baycoast. What is the standard error of the estimate (Se)? Comment on the size of the standard error for this regression model. Test the slope o..
Rob rales is preparing a report that his employer will eventually deliver to the FFA. First, the report must be approved by both of his two supervisors. Each of these supervisors acts independently in the review of these reports. Supervisor A ..
How to calculate the sample size? i want to know the needs and wants of the people who buy some products in the asian supermarkets in the netherlands, so i decide to make interview with them , but firstly i need to calculate how many people s..
Calculate the mean and standard deviation and Based on these statistics, describe how these anthropometric data compare to the US male and Chinese female populations.
Analyze whether gender differences exist in the size of pay-raise and whether or not these differences are attributable to the size of the university.
Let X be the sample mean of a random sample of size n from a uniform distributionon the interval [0, b], and let bb = 2X be an estimator of the upper endpoint b.(a) Demonstrate that bb is an unbiased estimator of b, and find the variance of th..
Construct a percentage pie chart of the overall design quality ratings for each of the following: automobiles of United States origin; automobiles of Pacific Rim origin.
A paper company is interested in estimating the proportion of trees in a 500-acre forest with diameters exceeding 2 feet. The company selects 25 plots (100 feet by 100 feet) from the forest and utilizes the information from the 25 plots to help..
Water specimens contain nitrates, a solution that is dropped into the water will cause the specimen to turn red 95% of the time. When used on water specimens without nitrates, the solution turns the water red 10% of the time. Past experience in the l..
If x is chosen at random from the set {1,2,3,4} and y is to be chosen at random from the set {5,6,7}, what is the probability that xy will be even?
American Theaters knows that a certain hit movie ran an average (μ) of 84 days in each city, and the corresponding standard deviation (σ) was 10 days. The manager of the southeastern district was interested in comparing the movie's popularity in his ..
Calculate the sample size for the mean or sample or sample size for the proportion, using a 95% confidence level, estimated population standard deviation or estimate of the true population proportion, and a 5% margin of error.
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