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A researcher wants to know the effect of four different types of fertilizers on the mean number of tomatoes produced. He wants to estimate the treatment means μ1, μ2, μ3, and μ4 such that he will be 90% con?dent that the estimates are within ?ve tomatoes of the true mean number of tomatoes. What is the necessary number of replications to achieve this goal? It is known from previous experiments that the numbers of tomatoes per plant have ranged from 20 to 60.
What are the most important concepts you have learned from conduct one-and two-sample tests of hypotheses? What would you recommend to your management/leadership based conduct one-and two-sample tests of hypotheses?
A contractor is considering a sale that promises a profit of $34,000 with a probability of 0.7 or a loss (due to bad weather, strikes, and such) of $16,000 with a probability of 0.3. What is the expected profit?
What percent of batteries have a life span that is more than 2560 hours? Would it be unusual for a battery to have a life span that is more than 2560 hours? Explain your reasoning
Make a forecast for 2005, using a trend model of your choice or a judgment forecast. Discuss. Note: Time increments are 5 years, so use t = 6 for your 2005 forecast.
Conditional and compound probabilities.The table below gives the distribution of blood types by gender in a group of 1000 individuals.
Explain why odds of 4 to 5 in favour of an event occurring have a different meaning than the same event having a probability of 4/5.
a store is running a promotion during which customers have two options for payment. option one is to pay 90 of the
on tuesday after thanksgiving a market research firm took a simple random sample of 300 city college students. on
She predicts correctly on 16 tosses. What is the probability of being correct 16 or more times by guessing? Does this probability seem to verify her claim?
ATM center in Mumbai is random with an average rate of 1.3 customer per min. Assume the arrival follows a Poisson distribution, calculate the probability that: Not a single customer arrived in a minute.
the data on the weight of male and female wolves from two random samples are as followsfemale 57 84 90 71 71 77 68
This study investigates whether there are differences in the outcomes of three different treatments for anxiety
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