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It is known that 60% of all students at a large university are female. A random sample of 8 students is selected. Calculate the probability that among the students in the sample 4.1 at least 7 are female 4.2 at most 1 is female.
Is there a significant difference in mean HDL levels among the exercise groups? Run the test at a 5% level of significance.
A state lottery involves the random selection of six different numbers between 1 and 28. If you select one six number combination, what is the probability that it will be the winning combination?
what is the probability that at least 8 of the words on the test are words that the student knows?
suppose a garage has 2 gates one with poisson distribution of 3 carshour and the other gate 4 carshour. what is the
The Sony corporation produces a Walkman that requires two AA Batteries. The mean life of these batteries in this product is 35.0 hours. The distribtion of the battery lives closely follows the normal probability distribtion with a standard deviati..
If the t ratio for the slope of a simple linear regression equation is equal to 1.614 and the critical value of the t distribution at the 1% and 5% levels of significance, respectively, are 3.499 and 2.365 is the slope:
Do not forget to test for any applicable difference in means (Tukey implies).
Concept of statistical signi cance
The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute.
please answer the question below focused on the topic of statistics for business.discuss the similarities and
Construct a 95 percent confidence interval for the true mean order size. (b) How could the confidence interval be made narrower? (c) Do you think the population is normal?
Assume the gasoline mileage of this mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon. What proportion of 2005 Honda Insights with automatic transmission gets over 60 mpg on the highway?
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