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Question: Below are two displays of the friends data described in Exercise, one for the students and one for the faculty members studied. Describe how these two displays are different.
Exercise: A college student is interested in how many friends the average person has. She decides to count the number of people who appear in photographs on display in dorm rooms and offices across her campus. She collects data on 84 students and 33 faculty members. The data are presented below.
a. What kind of visual display is this?
b. Estimate how many people have fewer than 6 people pictured.
c. Estimate how many people have more than 18 people pictured.
Assume that a 95% confidence interval estimate of the new annual starting salary is desired. How large a sample should be taken if we do not want to exceed $500? What do you know?
the following data give the speeds of 13 cars measured by radar traveling on the interstate highway i-84.67 72 63 66 76
Using the S-PLUS function bwrmcp, verify that for the data in Table 1, all pairwise comparisons among the levels of factor A are significant when the goal is to have FWE equal to .05.
necessity of moment function
The hypothesis test produces a z-score of z = 2.37. Assuming that the researcher is using a two-tailed test, what decision should be made?
The probability the champion is UCLA is 20%. What do these results say about testing with group data? Include in your answer the URLs of the sites where you found the necessary data.
The mean number of cargo ships that arrive at a port is 3 per day. The port has staff and facilities to handle up to 6 ships in a day. Using the Poisson distribution, find the probability that, on a given day,
Conduct an analysis of variance test to show that there is evidence of an overall difference in population mean sugar content in gelatin servings.
Use factoring, the quadratic formula, or identities to solve the following equations:
A list of registered automobile owners is used to select a random sample for a survey about whether people think homeowners should pay a surtax to support public parks.
Below is a partial multiple regression computer output based on a quadratic regression model to predict student enrollment at a local university.
what do they mean? with confidence interval? im just starting out and this is part of our homework for class. i dont
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