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The total blood cholesterol concentrations, in mg/dL, are shown below for a random sample of six people. In the table below, x is the age of the subject and y is the subject's total cholesterol concentration. Find the 95% prediction interval when x = 53 years.
x (age) 36 43 53 67 66 78
y (mg/dL) 208 224 238 238 277 263
a large disaster cleaning company estimates that 30 of the jobs it bids on are finished within the bid time. looking at
If the annual advertising expenditures are known to be normally distributed and the standard deviation of the population (σ) is $750, what would be the 95% confidence interval for the true mean advertising expense?
A histogram of time spent eating & drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating & drinking each day.
30% student take only Chinese, 30 % student take only Maths. It is found that both male n female has the equal chance to wear spectacles. Draw a tree diagram.
A larg wholesale nursery sells shrubs to a retail store. The cost C(x) and revenue R(x) in dollars for x shrubs are listed below:
If the population meanis to be estimated to within two days, with 95% confidence, how many outside salespeople should be sample.
Please help me with the attached pre-calculus questions. Use mathematical induction to prove that 6 is a factor of n (n + 1)(n + 2).
using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
Create a graph and draw the regression line based on these two pairs of scores, plus the X value 1 1 and its predicted score on Y.
Which of the given is the example of a discrete random variable? Which of the given is an example of continuous random variable?
The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type.
What is the probability that all three students pick exactly the same card?
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