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Scores derived from a patient satisfaction survey are normally distributed with u = 50 and sigma=7.5 with high score indicating high satisfaction. An SRS of n=36 with xbar=46.5. Does this observation provide strong evidence that the patient in the sample are different from the population.
A producer of pleasure boats wants to maximize revenue during the next month. Two types of boats are sold, x1 and x2. Type x1 sells for $40,000 and type x2 sells for $30,000.
Develop forecasts for the years 6 through 13 using a 5-year moving average and Weight the most recent year by 6, the previous year by 4, the year before that by 2, and the other years by 1.
can we conclude that the mean assembly time for this component exceeds 3 minutes? What error could be made in this case? Describe it in words.
Suppose the distribution of amounts purchased follows normal distribution. For sample of 50 customers, reply the following questions. Determine the probability the sample mean is at least $25.00?
What are the primary differences between investments in corporate stock versus corporate bonds? Since bonds pay interest, does that imply the individuals risk exposure is less for investing in bonds rather than stock?
A person is planning on saving money according to a rigid savings schedule. Saving plan A is to make an initial deposit of $400 and then deposit $20 per month into the account.
After a certain candidate announced his intention for running for the premiership of a province, many polls were conducted to assess his chanced for success.
Find the pdf of X+Y - Two independent uniform random variables
Describe whether statements regarding statistical significance are true or false. When your results are found to be statistically significant, can one conclude that they will have a meaningful effect in the clinic.
Wwhat are our h0 and ha ? (c) compute zobt.(d) with a= .05, what is zcrit? (E) do we have evidence of a relationship in the population? if so describe the relationship.
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.50 inches.
Suppose we have the following information from a single regression: What is the coefficient of determination? What is the correlation coefficient?
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