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If one student is chosen at random, Find the probability that the student was female GIVEN they got a 'A'.
Suppose you roll a special 28-sided die. What is the probability that the number rolled is a "1" OR a "2"? Suppose that 23% of people own dogs. If you pick two people at random, what is the probabilit
Giving a test to a group of students, the grades and gender are summarized below
If one of the pedestrian deaths is randomly selected, find the probability that the driver was not intoxicated. Report the answer as a percent rounded to one decimal place accuracy. You need not enter
It s claimed that 65% of the cars on the Valley Highway are going faster than the 65 mph speed limit. A random sample of 25 cars was observed under normal driving conditions with no police car in si
Can students save money by shopping for textbooks at Amazon.com? To investigate this possibility, a random sample of textbooks used last semester at a local university was selected. The prices for t
In the linear programming formulation of the shortest route problem, there is one constraint for each node indicating
Based on historical data, your manager believes that 30% of the company's orders come from first-time customers. A random sample of 109 orders will be used to estimate the proportion of first-time-c
A researcher wants to construct a 98% confidence interval for the proportion of elementary school students in Seward County who receive free or reduced price school lunches.
A marketing research company needs to estimate which of two soft drinks college students prefer. A random sample of N college students produced the followings 98% confidence interval for the proport
State the appropriate null and alternate hypothesis ii. compute the test statistic Z iii. using a = 0.05, can you conclude that the percentage of failures differs from 45%
A test is made of H0: u = 69 versus H1: u /= 69. A sample size n = 72 is drawn and X= 70. The population standard deviation is 27. Compute the value of the statistic Z.
Find the Pearson correlation coefficient for the following set of data using the computational formula from the tutorial. Are these sample data sufficient to reject H0: r = 0 for α = 0
Paleomagnetic studies of Canadian volcanic rock known as the Carmacks Group have recently been completed. The studies revealed that the northward displacement of the rock units has an approximately
List the outcomes in the sample space and find the probabilities for each outcome in the sample space.(Hint: P(RG)=P(R)*P(G))
If you were in charge of this, would you recommend to management that they proceed with the project? Why or why not? Show all of your work, and explain the process of achieving your answer.
You conducted a Chi-Square Goodness of Fit Test in your ASCI 691 capstone project. Unfortunately, you did not get the sample size you had hoped for during your research.
If r= -0.665 and n= 6, test the significance of the correlation coefficient at a = .05 reject p= 0 because 2.68> 2.57
You wish to conduct an ANOVA (one way/omnibus). In order to insure you have enough power to detect differences in your sample, you need to run a power analysis in G*Power. Assume that you are expect
The national freshman-to-sophmore retention rate has held steady at 74%. A certain college has 483 of 607 freshman return as sophmores. Does this college have the right to brag that it has an unusua
A large publishing house recently conducted a survey to assess the reading habits of teenagers. The company publishes four magazines specifically tailored to suit the interests of teenagers.
Term Coeff SE(Coeff) t-ratio p-value intercept 23.979345 9.148568 2.62 0.0102 use 1990 0.8073999 0.032148 25.12 <0.0001. Explain the meaning of 90% prediction interval.
Create aa 99% confidence interval for the average fuel efficiency among car weighing 2500 pounds. Create a 99% prediction interval for the gas mileage you might get driving your new 3450-pound SUV.
An economic theory is that the money flowing in and out of mutual funds (fund flows) is related to the performance of stock market (market return).
Is there an application of Seasonal Indices or variation in your organization or institutions that you might have worked for or are familiar? If so, Define the states of application. Share the data