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Q1) One hundred Lower Wabash Tech students take 10-question multiple-choice test with 4 answers to each question, exactly one of which is right. All of students are unprepared and must guess at each question.
a) Of the 100 test takers, how many are expected to get each possible score?
b) Richard is one of test takers. Find out the number of questions he can expect to get right on test by random guessing.
The width of a confidence interval will be:
Assume that the length X in minutes of a regular season NBA game is normally Distributed with X~N (µ X , σ 2 X );
Calculate the sample mean and sample standard deviation.
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Does the data prove a significant difference in mean times?
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In a regression analysis involving 30 observations, the following estimated regression equation was obtained.
Make a decision regarding the null hypothesis based on the sample information. Interpret the results of the test and state your conclusion.
Which of the following statements regarding the coefficient of correlation is true. A value of 0.00 indicates two variables are not related.
What is the 95% confidence interval estimate of the population mean cost for a prescription of Zocor?
Find out the probability that: First electric brush chosen is defective?
Choosing the appropriate the sampling design for the given data
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