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Biology and Environmental Science
The germination rate for pumpkin seeds is directly related to the prevailing weather conditions. The Autumn Gold is a popular mediumsized pumpkin and ripens to a deep orange. If conditions are seasonable, the probability of germination is 0.85.47 If it is dry, suppose the probability that a random seed will germinate is 0.75. Recent weather history suggests there is a 40% chance of a dry start to the growing season. Suppose an Autumn Gold pumpkin seed is randomly selected.
a. What is the probability that the growing season will be dry and the seed will germinate?
b. What is the probability that the seed will germinate?
c. Suppose the seed does not germinate. What is the probability that the growing season had a dry start?
Distributed with mean 4.6 minutes and standard deviation 1.4 minutes. If there are 75 students in class, determine probability the professor requires more than 6 hours to mark all of the midterms?
Suppose that further polling reveals that this WNBA star really is known to about 30% of the target audience. Did the company initially commit a Type I or Type II error in not signing her?
What is the correlation between Friday and Monday scores?- What does a scatterplot show about the association between the scores?
Assuming that this was a sample from a larger population of heart attack patients, what symbols should be used to represent the values given for the mean and standard deviation?
What information is contained in the sample space for part (b) that is not contained in the sample space for part (c)? Do you think this information is important? Explain your answer.
One group uses the animation, and the other studies the text. The company retests all the students and compares the increase in creative writing in the two groups. Is this an experiment? Why or why not?
Do you believe that the variance of the number of cars sold per month before the announcement is equal to the variance of the number of cars sold per month after the announcement?
(a) a white chip on the first draw?
a production process requires a fixed cost of 50000. the variable cost per unit is 25 and the revenue per unit is
Using = .05, what is the critical value for the test statistic? (+ or -). State the rejection rule: Reject H0 if z is the lower critical value or the upper critical value.
waiters at finegolds restaurant and lounge earn most of their income from tips. each waiter is required to tip-out a
The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.
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