9. (2 pts) A restaurant wants to study how the monthly cost is affected by monthly...
4. (2 pts) A company wants to study how its cost affects sales. The cost and sales are numerical data. What statistical method should be used?
Question 39 2 pts Abotanist wants to study whether type of light affects plant growth. He gets ten identical plants and treats them all the same, except for the type of light they are under. He then records their growth in centimeters over the course of five weeks. In this scenario, plant growth is the independent variable control O experimental variable dependent variable O placebo
In a study of 30 customers' utility bills in which the monthly bill was the dependent variable and the number of square feet in the house is the independent variable, the resulting regression model is = 23.40 + 0.4x. Based on this model, the expected utility bill for a customer with a home with 2,300 square feet is approximately $92.00. True or False?
Mama's Pizza restaurant chain would like to understand which variable most strongly influences the amount of sales of the deep-dish pizza. They have gathered data on the number of monthly sales (in 100's) of deep-dish pizzas and the amounts month on advertising at 20 of their restaurants. Below are the results of the linear regression to predict the number of month 100's) based on monthly advertising (in $1,000's). SUMMARY OUTPUT - Regression Model to Predict Monthly Sales (in 100's) based...
A Restaurant is open only for 25 days in a month. Expenses for the restaurant include raw material for each sandwich at $6.00 per slice, $1,086.00 as monthly rental and $303.00 monthly as insurance. They consider the cost of lost sales as $5.00 per item. They are able to sell any leftover sandwiches for $3. They prepares 200.00 sandwiches and sells them at a rate of $12.00/sandwich Today there was a party at nearby office so the demand for sandwiches...
9. Lucir manages a German restaurant in a large western city. The restaurant's owner wants to know how well Lucir did this year at generating sales, controlling costs, and providing a profit. The owner promised Lucir that he would give her a raise if she increased return on sales (profit margin) by at least 1 percent. Complete Lucir's P&L. Should Lucir receive a raise? 9. Lucir manages a German restaurant in a large western city. The restaurant's owner wants to...
Dr. Bellus wants to study how people's perception of attractiveness is affected by the gender of the subjects, and the facial expression of the object. Each participant views six headshots (in random order) of the same person, who demonstrates different facial expressions (joy, surprise, fear, anger, sadness, and disgust) in each picture. The participants are then asked to rate the attractiveness level of each picture. The rating is the dependent variable. Below is the selected output of a two-factor split...
Dr. Bellus wants to study how people's perception of attractiveness is affected by the gender of the subjects, and the facial expression of the object. Each participant views six headshots (in random order) of the same person, who demonstrates different facial expressions (joy, surprise, fear, anger, sadness, and disgust) in each picture. The participants are then asked to rate the attractiveness level of each picture. The rating is the dependent variable. Below is the selected output of a two-factor split...
2) A company making mattresses wants to test two different designs on elderly people who typically have more trouble sleeping through the night, to see which is more effective at keeping people asleep for more hours. One is a mattress that conforms to the body (mattress #1) the other is a mattress that elevates to different levels to help with sleep apnea and snoring (mattress #2). The company wants to know which mattress makes more of a difference in helping...
DQuestion 11 2 pts Merritt College conducted a study to determine if concentration levels of students who are working full-time affected grade point average. Students had to take a concentration test and completed a survey that determined student's concentration levels. Note: In this study, there is no zero concentration level or 100% concentration level. The experimenters determined that students who have a high concentration level" had higher grade point averages than those students with a "low concentration level" What is...