Question

In: Statistics and Probability

A manufacturer of cell phones wants to know if Prototype A or Prototype B is better....

A manufacturer of cell phones wants to know if Prototype A or Prototype B is better. They randomly select 200 college students and then randomly assign half to each prototype. Each student will use the prototype for one month. After the month, the investigator asks each student to rate the phone on a scale of 1 to 5.

a) Draw the appropriate experimental design of this study.

b) Describe a possible methodology to determine which phone that each student is provided in the study.

c) Is this study well designed? Please explain your answer. If the study is not well designed, how would you change the design method?

Solutions

Expert Solution

please like if it helps me..

Thank you...

orchestra answered 1 year ago
Next > < Previous

Related Solutions

A manufacturer of cell phones wants to know if Prototype A or Prototype B is better....
A manufacturer of cell phones wants to know if Prototype A or Prototype B is better. They randomly select 200 college students and then randomly assign half to each prototype. Each student will use the prototype for one month. After the month, the investigator asks each student to rate the phone on a scale of 1 to 5. a) Draw the appropriate experimental design of this study. b) Describe a possible methodology to determine which phone that each student is...
An electronics company wants to compare the quality of their cell phones to the cell phones from three competitors.
  1. An electronics company wants to compare the quality of their cell phones to the cell phones from three competitors. They sample 10 phones from each company and count the number of defects for each phone. If ANOVA was used to compare the average number of defects, then the treatments would be defined as: Select one: a. The three companies b. The total number of phones c. The number of cell phones sampled d. The average number of defects 2....
B.F. Retread, a tire manufacturer, wants to select one of three feasible prototype designs for a...
B.F. Retread, a tire manufacturer, wants to select one of three feasible prototype designs for a new tire; A, B, C. Revenues Low (0.30) Medium (0.50) High (0.20) A 120,000 255,000 390,000 B 130,000 295,000 460,000 C 100,000 300,000 480,000 What is the best decision using the maxi-min approach to decision making?
In 2012, the percent of American adults who owned cell phones and used their cell phones...
In 2012, the percent of American adults who owned cell phones and used their cell phones to send or receive text messages was at an all-time high of 80%. Assume that 80% refers to the population parameter. More recently in 2015, a polling firm contacts a simple random sample of 110 people chosen from the population of cell phone owners to confirm the percent who use their phone to text. The firm askes each person "do you use your cell...
Flextronchip, an OEM manufacturer, has a fifth-generation chip for cell phones, with chip specification of 0.2...
Flextronchip, an OEM manufacturer, has a fifth-generation chip for cell phones, with chip specification of 0.2 ± 0.0002 mm for the distance between two adjacent pins. The loss due to a defective chip has been estimated as $36. Required: 1. Compute the value of k, the cost coefficient in the Taguchi quality loss function (QLF), L(x) = k(x − T)2. 2. Assume that the quality control manager takes a sample of 100 chips from the production process. The results are...
A grocery store wants to know which system is better for decreasing the amount of time...
A grocery store wants to know which system is better for decreasing the amount of time that their customers wait in checkout lines. Is there a significant difference in the average time customers wait in line using the cashier operated checkout and the self-checkout? The data was collected by recording the amount of time it takes to check out 20 customers that enter the cashier checkout line and 20 customers that enter the self-checkout line. The number of minutes from...
A grocery store wants to know which system is better for decreasing the amount of time...
A grocery store wants to know which system is better for decreasing the amount of time that their customers wait in checkout lines. Is there a significant difference in the average time customers wait in line using the cashier operated checkout and the self-checkout? The data was collected by recording the amount of time it takes to check out 20 customers that enter the cashier checkout line and 20 customers that enter the self-checkout line. The number of minutes from...
A grocery store wants to know which system is better for decreasing the amount of time...
A grocery store wants to know which system is better for decreasing the amount of time that their customers wait in checkout lines. Is there a significant difference in the average time customers wait in line using the cashier operated checkout and the self-checkout? The data was collected by recording the amount of time it takes to check out 20 customers that enter the cashier checkout line and 20 customers that enter the self-checkout line. The number of minutes from...
A video game manufacturer has recently released a new game. The manufacturer wants to know whether...
A video game manufacturer has recently released a new game. The manufacturer wants to know whether players rate their new game as more or less difficult than the average difficulty rating of all of their games, μ = 6 and σ = 2. A random sample of 36 players yielded a sample mean of 7 and a standard deviation(s) of 1.8.              a. State the null and alternative hypothesis.              b. Conduct a z-test on the data given.              c. What do you...
A supplier submits lote of fabric to a textile manufacturer. The customer wants to know if...
A supplier submits lote of fabric to a textile manufacturer. The customer wants to know if the lot average breaking strength exceeds 200 psi. If so, he wants to accpt the lot. Past experience indicates that a reasonable value for the variance of breaking strength is 100 (psi)2.. Four specimens are randomly selected and the average breaking strength observed is 214 psi. Perform a hypothesis test (7 step procedure outlined in class). Perform the test using the Fixed significance level...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT