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A lab technician is tested for her consistency by making mutiple measurements of the cholesterol level in one blood sample. The targhet precision is a standard deviation of 1.1 mg/dl or less. If 16 measurements are taken and the standard deviation is 2.1 mg/dl is there enough evidence to support the claim that her standard deviation is greatear than the target at a = 0.01?possible answers:
a) yes, since the X² test value 54.669 is greater than the criticval value 32w.000.
b) no, since the X² test value 28.64 is less than the critivcal value 30.576
c) yes, since the X² test value 54.669 is greater than the critical value 30.578
d) no since the X² test value 28.64 is less than the critical value 32.0900
Stating assumptions on which your arguments and conclusions are based, sum up the statistical evidence regarding effectiveness of this diet.
Which measure of central tendency would you use to summarize the data below? Which inferential test would you use to determine if there is a difference in rainfall between the sample 2 and 3?
The mean and the standard deviation of a sample of 100 bank customer waiting times are 5.46 and 2.475 minutes, respectively. a) Assuming the distribution is bell-shaped, calculate the waiting time intervals containing 68% and 95% of bank customer w..
We suspect that automobile insurance premiums (in dollars) may be steadily decreasing with the driver's driving experience (in years), so we choose a random sample of drivers who have similar automobile insurance coverage and collect data about th..
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To test whether there is a significant mean difference among the three.
Construction of histogram and pie chart for continuous data
Use a 0.05 significance level to test the claim that these credit rating are from a population with a mean that is equal to 700.
When we say we have confidence level of 95% what do you believe our "margin of error" is?
Mean and standard deviation are 584.6 and 34.28
A certain component is critical to the operation of medical device and must be replaced immediately upon failure. If the mean lifetime of this type of component is 100 hours and its standard deviation is 30 hours, how many of these components must..
When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be:
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