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Assume the body temperature of healthy adults are normally distributed with a mean of 98.20F and a standard deviation of 0.62F. a) If you have a body temperature of 99.00F what is your percentile score? b)Convert 99.00F to a standard score (or a z-score). c)Is a body temperature of 99.00F unusual? Why or Why not? d)fifty adults are randomly selected. What is the likelihood that the mean of their body temperatures is 97.98F or lower?
The random digit dialing machine is expected to reach a live person 15% of the time. In eight attempts, what is the probability of achieving exactly two successful calls?
What does the standard deviation mean? Interpret the standard deviation relative to the average or mean?
Construct a 95% confidence interval estimate for the population proportion of airline travelers who think that the airline fee that is most unreasonable is additional charges to redeem point/miles.
The third will be made an offer only if the committee should reject both the first and the second. How many possible ordered choices of three out of six candidates are there?
Calculate the least square estimates of the slope and intercept. What is the estimate ofσ2? Find the estimate of the mean deflection ifthe stress level can be limited to 69%.
The sample of 200 voters and tests Ho: P=0.5 versus H1:P(not equal)0.5 at 5% level. What is the power of the test if the true value of P is 0.55?
Using a 2-month weighted moving average, with weights of 2 for the most recent month and 1 for the previous month develop forecasts sales for March to June inclusive.
At α = 0.01, is the degree of certainty independent of credits earned?
What must be true about the data sets to make the confidence intervals you constructed in parts (a) and (b) valid?
When performing a 2-way ANOVA with replication you must first: A) Perform an interaction hypothesis test B) Take out the error because you ran replicates and error makes no sense with replicates
A specific brand of bike comes in two frames, for males or females. Each frame comes in a choice of two colors, red and blue, and with a choice of three seats, soft, medium, and hard.
The sampling distribution of mean score is approximately Normal. It has mean. What is its standard deviation?
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