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A particular variety of watermelon weighs on average 23.8 pounds with a standard deviation of 1.35 pounds. Consider the sample mean weight of 76 watermelons of this variety. Assume the individual watermelon weights are independent.
What is the expected value of the sample mean weight? Give an exact answer.
What is the standard deviation of the sample mean weight? Give your answer to four decimal places.
What is the approximate probability the sample mean weight will be greater than 23.8? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.
What is the value c such that the approximate probability the sample mean will be less than c is 0.92? Give your answer to four decimal places. Use the standard deviation as you entered it above to answer this question.
Santa Fe black on white is a style of pottery that occurs in about 61% of the pot shards found in the Bandelier National Monument area.
lakewood fashions must decide how many lots of assorted ski wear to order for its 3 stores. Information on pricing, sales and inventory costs has led to the following payoff table. what decision should be made using minimax regret.
The mean of a normal probability distribution is 60; the standard deviation is 5.
Use the traditional method to test the given hypothesis. Assume that the population is the normally distributed and that the sample has been randomly selected.
If Stocks 1 and 2 have expected returns of 9 percent and 10 percent per year, respectively, then what is the minimum expected annual return for Stock 3 that will enable Glenda to achieve her investment requirement?
Can the company conclude that the mean kilo of product treated in one hour by this machine is more than 15,000? Use a 5% level of significance.
Utilizing a binominal experiment, that is each trail can be reduced to two outcomes, construct a binomial distribution.
How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for sampling distribution of sample means for samples of size n = 60.
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
On average, 8% of the subscribers respond to the survey. Of the 8% who respond, an average of 53% say they will renew. Sample and Population.
Not take SRS of 25 students who took test. What are the mean and standard deviation of sample mean score xbar of these 25 students?
Show the sampling distribution of p if a random sample of 150 insured individuals is used to estimate the proportion having received at least one ticket.
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