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Decide whether the experiment is binomial, poisson, or neither based on the information given. you observe the gender of the next 950 babies born at a local hospital. The random variable represents the number of girls. historically, 49.8 are born girls.
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?
Finding the probability value for the given data using normal approximation
Can you please derive the mean and variance of a RV X, which has a Poisson distribution.
Now we are going to talk about continuous probability distributions. In a continuous probability distribution, the variable can have a value within a range.
Perform a two-tailed hypothesis test on both the intrinsic and the extrinsic variable's data, using a .05 significance level. Begin by creating a null and an alternate statement.
A manager of a small store wanted to discourage shoplifters by putting signs around the store saying "Shoplifting is a crime!" However, he wanted to make sure this would not result in customers buying less.
In a column, write the sample space for the experiment that consists of observing the day's production.
At the .05 significance level, is there a difference in the proportion of viewers watching the three channels?
He argues that the regression effort says people who perform very poorly in their previous job tend to perform well in their next job. Is this what the regression effect says? Explain.
Your firm has classified orders as either large or small in dollar amount and as either light or heavy in shipping weight. In the recent past, 28% of orders have been large dollar amounts
In the accompanying table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is probability distribution. If it is a probability distribution, find its mean and stand..
There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval using the plus four method for the difference in the proportion of defectives.
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