1. Two separate tests are designed to measure a student\'s ability to solve prob
ID: 3232961 • Letter: 1
Question
1. Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Find r.
a. 0.109 b. 0.867 c. 0.714 d. 0.548
2. An Internet service provider is interested in testing to see if there is a difference in the mean weekly connect time for users who come into the service through a dial-up line, DSL, or cable Internet. To test this, the ISP has selected random samples from each category of user and recorded the connect time during a week period. The following data were collected:
Based upon these data and a significance level of 0.05, which of the following statements is true?
D. All of the above are true.
3. Consider the partially completed one-way ANOVA summary table.
The F-test statistic for this ANOVA procedure is ________.
D. 5.5
4. Nintendo Sony would like to test the hypothesis that a difference exists in the average age of users of a Wii, a PlayStation, or an Xbox console game. The following data represent the age of a random sample of Wii, PlayStation, and Xbox users.
The grand mean for these observations is ________.
a. 30 b. 31.3 c. 30.9 d. 31.8
Dial Up DSL Cable 19.2 40.6 39.5 17.7 40 42.3 17.2 41.5 47 18.9 30.5 45.4 26.9 46.8 41.1 22.6 43.2 31.2 39.9 41.9 49.3 Test A l 48 52 58 l 44 43 43 40 51 59 Test B 73 67 73 59 58 56 58 64 74Explanation / Answer
1.
1.
I used the correlation formula to solve the problem
The correl(a,b) formula needs to be run for the data.
The correlation coefficient is 0.867
Answer is b. 0.867
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