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Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers).
a. If you have a body temperature of 99.00 °F, what is your percentile score?b. Convert 99.00 °F to a standard score (or a z-score).c. Is a body temperature of 99.00 °F unusual? Why or why not?d. Fifty adults are randomly selected. What is the likelihood that the mean of their body temperatures is 97.98 °F or lower?e. A person's body temperature is found to be 101.00 °F. Is the result unusual? Why or why not? What should you conclude?f. What body temperature is the 95th percentile?g. What body temperature is the 5th percentile?h. Bellevue Hospital in New York City uses 100.6 °F as the lowest temperature considered to indicate a fever. What percentage of normal and healthy adults would be considered to have a fever? Does this percentage suggest that a cutoff of 100.6 °F is appropriate?
You sample a group of computers and use the sample statistics to calculate a 95% confidence interval of (-10.95, -1.5). This interval estimates the difference of (average boot time (HDD) - average boot time (SSD)). What can we conclude from this i..
1- ounce chocolate chip cookies resulted in following calorie amounts. At α=0.01 level, is there sufficient evidence that average calorie content is greater than 110 calories.
A normal distribution with a mean of 33 oz. and a standard deviation of 0.8 oz. What proportion of packets are underweight (i.e., weigh less than 32 oz.)?
A mortar shell is s feet above the ground after t seconds, where s=f(t)= -16t + 510t +63. Find the height of the shell 15 seconds after it is fired.
A random variable X is normally distributed with mu = 60 and standard XXX = 11. What is zscore for X = 71
Determine probability of 0 nonconforming units on first sample and 2 nonconforming units on second? First gasket selected is returned to lot before the second one is selected.
The regression of Y on X predicts? When predicting Y, adding a second predictor variable to the first predictor variable X.
A manufacturer of athletic footwear claims that the mean useful lifetime of his product will exceed 50 hours. A random sample of 36 pairs of shoes leads to the following sample results, in terms of useful life: x = 52.3 hours and s = 9.6 hours.
Compute the standard error of estimate, and interpret its meaning.
What type of error would result in that case? Respond to at least two of your classmate's postings.
Permutation chi square test to a regular chi square table test. What happens in situations, where assumptions of a chi square test are violated? Discuss.
On their farm, the Friendly family grows apples that they harvest each fall and make into three products- apple butter, applesauce, and apple jelly.
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