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The average low temperature for Marquette, MI in December is 12F. The average low temperature for each of 8 randomly selected years is listed as: 11.0, 12.4, 11.8, 10.9, 11.4, 12.2, 10.8, and 12.2. Assume the December low temperature distribution is normal. It is of interest to know if the sample data suggest the average low temperature is lower than 12F. Perform an appropriate hypothesis test using the .01 level of significance. (You should provide 5 steps for hypothesis testing)
given the following profit table determine the minimax regret decision.states of
suppose according to a 1990 demographic report the average u.s. household spends 90 per day. suppose you recently took
Sampling variability refers to the idea that different samples will include different individuals
Compute the variance and standard deviation of the number that will arrive within two days.
If you assume returns follow a normal distribution, which investment would give a better chance of getting at least a $40 million return? Explain how your answer could change if you knew returns followed a skewed distribution instead of a normal d..
Use given data to create the unbiased point estimate of 12σ'> 2 of percentage of termites that are minor workers.
A researcher looks at the effect of 3 different drugs on 3 different groups of 10 people. Numbers refer to stress levels, with lower numbers being lower stress.
1. ross whites machine shop uses 2500 brackets during the course of the year and this usage is relatively constant
If you draw a ball, record the color then draw a second without replacing the first ball, what is the probability of choosing two green balls?
nine college students had eaten the following number of times at a fast food restaurant for dinner in the last ten
Compute the 99% confidence interval for the proportion of clocks with errors in assembly and interpret this confidence interval.
Will an SRS of size 1785 usually give a result p-hat within plus or minus 3 percentage points of the true population proportion? Explain.
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