STT 231

1. first condition of hypothesistest CORRECT ANSWER 10successes/failures 2. second condition of hypothesis test CORRECT ANSWER independence of data points 3. if value is contained in interval CORRECT ANSWER accept null, p-val greater than significance level 4. if value NOT contained in interval CORRECT ANSWER reject null, p-val smaller than significance level 5. chi sq goodness of fit CORRECT ANSWER 1 categorical variable follows proposed distribution 6. chisq center CORRECT ANSWER df...

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4 pages

Written in 2026/2027

Grade A+

lectdenis

1. You asked ten of your classmates about their weight. On the basis of this information, you stated that the average weight of all students in your uni-versity or college is 142.6 pounds. Thisis an example of::statistic 2. A company has developed a new battery, but the average lifetime is un-known. In order to estimate this average, a sample of 100 batteries is tested and the average lifetime of this sample is found to be 250 hours. Identify population,sample, variable, parameter, and stati...

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4 pages

Written in 2026/2027

Grade A

lectdenis

1. what two conditions must be met in order for the CLT to apply for propor-tional testing?: 1: sample must be independent and identically distributed; like random assignment/sam-pling 2: sample must be suflciently large 2. normal density curve: symmetric about the mean μ; hasstandard deviation σ; total area under the curve = 1.0; values of the random variable X on x-axis; probabilities are represented by areas under the curve; 3. what do the numbers in the N(0,1) equation represent CORR...

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7 pages

Written in 2026/2027

Grade A+

lectdenis