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Sheila's doctor is concerned that she may suffer from gestational diabetes (high blood glucose levels during pregnancy). There is variation both in the actual glucose level and in the blood test that measures the level. A patient is classified as having gestational diabetes if her glucose level is above 130 milligrams per deciliter (mg/dl) one hour after a sugary drink. Sheila's measured glucose level one hour after the sugary drink varies according to the Normal distribution with mu = 115 mg/dl and sigma = 14 mg/dl.
What sample mean blood glucose level is higher than 95% of all other sample mean blood glucose levels? Hint: this requires a backward Normal calculation. (Use 2 decimal places)
during an assembly process parts arrive just as they are needed. however at one station the probability is 0.01 that a
a six-sigma black belt quality engineer found that in a random sampl of 140 printed circuit boards 18 are defective due
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $2.78.
stratum 3 contains 1,000 invoices, and stratum 4 contains 3,450 invoices. A sample of 500 sales invoices is needed. What type of sampling should you do? Why?
a production process requires a fixed cost of 50000. the variable cost per unit is 25 and the revenue per unit is
if the analysis of variance f test leads to the conclusion that at least one of the model parameters is non-zero can
in a survey of undergraduate library usage it was found that 78 of seniors 65 of juniors 41 of sophomores and 21 of
question 1 a researcher wants to study the physical activity levels among adults. the mean weight of adult torontonians
a presidential candidate plans to begin her campaign by visiting the capitals in 4 of 47 states. what is the
Find a 95% confidence interval for the true proportion of patients who experienced cotton mouth. Show your calculations and/or explain the process used to obtain the interval.
Describe the similarities between an F-ratio and a t statistic. The basic relationship between t statistic and F-ratios can be stated in an equation. What is that equation?
She has a history of being successful at getting a donor on 55 percent of her calls. If June has a quota to get at least four donors each day.
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