For three-way contingency tables, when a pair of variables is conditionally independent, ex- plain why there is homogenous association. When there is no homogeneous association, explain why no pair of variables can be conditionally independent.
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- Please do not reject and please explain with clear steps i am in desperate need of help. Thank you so much means alot!An "order effect" is likely to occur if we use a simple -subjects design. between- within- intersubjective- external-An Employee Value Proposition (EVP) is about defining the essence of a company. The EVP is the value an employee receives from the employer; it defines the commitment the company will make to develop the employee in exchange for the effort the employee puts in to benefit the company. But do all agree on what makes a unique and compelling EVP? A study showed that 14% of business executives, 36% of HR leaders, and 31% of employees say that compensation (pay and rewards) makes for a unique and compelling EVP. Assume that 200 individuals within each business group were surveyed. Complete parts (a) through (c). State the null and alternative hypotheses. Use a=0.05 The test statistic is x^2stat= The critical value = b. Determine the p-value and interpret its meaning.
- I have the correct answer already but i am not sure with itA manufacturing firm finds that 80% of its new hires turn out to be good workers and 20% become poor workers. All current workers are given a reasoning test. Of the good workers, 90% pass it; 30% of the poor workers pass it. Assume that these figures will hold true in the future. If the company makes the test part of its hiring procedure and only hires people who meet the previous requirements and also pass the test, what percent of the new hires will turn out to be good workers?Emma's v he-Go, a large convenience store that makes a good deal of money from magazine sales, has three possible locations in the store for its magazine rack: in uie iront of the store (to attract "impulse buying" by all customers), on the left-hand side of the store (to attract teenagers who are on that side of the store looking at the candy and soda), and in the back of the store (to attract the adults searching through the alcohol cases). The manager at Emma's experiments over the course of several months by rotating the magazine rack among the three locations, choosing a sample of 42 days at each location. Each day, the manager records the amount of money brought in from the sale of magazines. Below are the sample mean daily sales (in dollars) for each of the locations, as well as the sample variances: Sample Sample Sample size Group mean variance Front 42 225.4 453.5 Left-hand side 42 223.9 506.8 Right-hand side 42 211.6 393.6 Send data to calculator Send data to Excel Suppose…
- There are several risks and costs associated with the airline's decision to overbook flights. If too many passengers show up, the airline may need to offer incentives for customers to give up their seats, which can be costly. If too few passengers show up, the airline may be forced to fly with empty seats, resulting in lost revenue. Furthermore, overbooking can lead to negative publicity and damage to the airline's reputation if too many customers are bumped from their flights. In terms of strategy, the airline must weigh the potential benefits of overbooking (maximizing revenue by filling as many seats as possible) against the potential risks and costs. The airline may also consider adjusting its overbooking policy based on factors such as the route, time of day, and historical data on no-show rates for specific flights. Overall, effective demand forecasting and capacity planning are crucial for the airline to optimize its operations and profitability while minimizing negative…At a stop sign, some drivers come to a full stop, some come to a rolling stop (not a full stop, but slow down), and some do not stop at all. Test if there is an association between gender and type of stop (full, rolling, or no stop). Data is collected by standing a few feet from a stop sign and taking note of the type of stop and the gender of the driver. Below is a contingency table summarizing the data that was collected. Do the data provide enough evidence to show that there is an association between gender and type of stop (full, rolling, or no stop)? Test at the 3% level and round expected values to one decimal place. Type of Stop Male (Observed) Male (Expected Value) Female (Observed) Female (Expected Value) Row Total Full Stop 11 21 32 Rolling Stop 15 15 30 No Stop 9 8 17 Column Total 35 44 79 H: HypothesesHo:Ho:Select an answer Gender male female Male and Select an answer Type of Stop male female Female are Select an answer independent dependent…this is a practice question given by the lecturer, hope someone can solve it thank you
- In 2018, a consumer goods giant had more than 20 brands with more than $1 billion in annual sales. How does the company create so many successful consumer products? They effectively invests in research and development to understand what consumers want. One method used to determine consumer preferences is called conjoint analysis. Conjoint analysis allows a company to ascertain the utility that a respondent in the conjoint study places on a design of a given product. The higher the utility, the more valuable a respondent finds the design. Suppose we have conducted a conjoint study and have the following estimated utilities (higher is preferred) for each of three different designs for a new whitening toothpaste. Respondent Utilities Design A Design B Design C 1 24.6 34.4 28.8 2 31.4 31.4 33.9 3 31.8 20.2 27.8 4 15.4 26.4 25.1 5 20.7 18.3 18.2 6 41.0 34.0 44.8 7 27.1 22.5 27.3 8 20.2 21.8 27.9 9 31.6 29.4 31.3 10 24.4 29.0 29.3 At the 0.05 level of…Customers at a café can have either a baked potato or scalloped potatoes with theirbuffalo bacon cheese ranch dressing burger if they choose to have a side order. As it turns out70% of the customers choose to have the buffalo bacon cheese ranch dressing burger. Further,25% of the customers have both the buffalo bacon cheese ranch dressing burger and the bakedpotato. Given a customer has the buffalo bacon cheese ranch dressing burger what is theprobability the customer is having the baked potato with it?Cognitive science consistently shows that one of the most effective studying tools is to self-test. A recent study reinforced this finding. In the study, 118 college students studied 48 pairs of Swahili and English words. All students had an initial study time and then three blocks of practice time. During the practice time, half the students studied the words by reading them side by side, while the other half gave themselves quizzes in which they were shown one word and had to recall its partner. Students were randomly assigned to the two groups, and total practice time was the same for both groups. On the final test one week later, the proportion of items correctly recalled was 15% for the reading-study group and 42% for the self-quiz group. The standard error for the difference in proportions is about 0.07. Test whether giving self-quizzes is more effective and show all details of the test. The sample size is large enough to use the normal distribution. Remember – there are four…