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The shipment of chemicals arrives in 15 totes. Three of the totes are chosen at random, with no replacement, for the inspection of purity. If two of totes don't conform to purity requirements, determine the probability that at least one of nonconforming totes is selected in sample?
The weight for a group of 18 month-0ld girls are normally distributed with a mean of 24.4 pounds and a standard deviation of 2.6 pounds. Use the table to find the percentage of 18 month-old girls who weigh more than 27.8 pounds.
\Write down the general formula for the discrete uniform probability distribution function. Now write down the probability distribution function for the random drawing of tile numbers. Is this a discrete uniform distribution?
What does null hypothesis for repeated-measures hypothesis test state?
Normally distributed with the mean income of $30,000 and standard deviation of $3,000. Determine the income which separates top 25% from lower 75% of incomes?
Delivery Format The General Social Survey asks, "About how often did you have sex in the past 12 months?" About 47% of respondents indicated they had sex at least once a week.
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
In a large university, 15% of the students are female. If a random sample of twenty students is selected,
A student is taking a multiple choice exam in which each question has four choices . Assume that the student has knowledge of a correct answer to any of the questions.
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
Using an alpha of .05, what can you conclude about homogeneity of variance from the output? Word process your responses on the SPSS output pages.
Medical studies have shown that 10 out of 100 adults have heart disease. When a person with heart disease is given an EKG test, a 0.9 probability exists that the test will indicate the presence of heart disease.
Explain the difference between the null and alternative hypothesis. Which one can be proven in a statistical sense?
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