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Question: Which is relatively better: A score of 85 on a psychology test or a score of 45 on an economics test? Scores on the psychology test have a mean of 90 and a standard deviation of 10. Scores on the economics test have a mean of 55 and a standard deviation of 5.
q1. bmi in children is approximately normally distributed with a mean of 24.5 and a standard deviation of 6.2. a bmi
Findout the probability using normal approximation for the provided values. Findout the specified probability from a table of Normal probabilities.
The mean weight is 402.7 grams and the standard deviation 8.8 grams. What is the probability that the mean weight for a sample of 40 trout exceeds 405.5 grams?
How do you verify that the assumption of a normal distribution is correct if you've only the mean and standard deviation?
Provide an example of an application of the normal distribution. Explain why standard normal distribution can be used to find the probabilities for all normal distributions?
Research hypothesis: Turnout tends to be higher in proportional representation electoral systems and research hypothesis: A country's predominant religion influences its democratic status today
Evaluate the standard deviation - use the conservative value for the degrees of freedom, Assume the two groups are independent and the data are approximately Normal. Let µ 1 and µ 2 represent the mean heart rates we would observe for the entire po..
Which of the following models are appropriate to forecast a time series whose amplitude increases over time?
Ball bearings are manufactured with a diameter of 5 mm. But the process has variation, so the diameter is normally distributed with a mean of 5 mm and a standard deviation of .02 mm. A) What proportion of ball bearings are more than 5.03 mm?
Find a 95% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments available for rent in this community.
on a certain examination the average score is 53 and the standard deviation is 6. find a range of values within which
truck tire life is normally distributed with a mean of 60000 miles and a standard deviation of 4000 miles. what is the
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