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The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 6.5 ounces. 33 randomly selected people are surveyed. Round all answers to 4 decimal places where possible.
What is the distribution of X? X ~ N(____,____)
What is the distribution of `x? `x ~ N(_____,____)
What is the probability that one randomly selected person drinks between 14.8 and 15.1 ounces of coffee per day? ________
For the 33 people, find the probability that the average coffee consumption is between 14.8 and 15.1 ounces of coffee per day. _______
For part d), is the assumption that the distribution is normal necessary? Yes OR No
Find the IQR for the average of 33 coffee drinkers.
Q1 = _________ ounces
Q3 = ________ ounces
IQR: _______ ounces
The time (in hours) until failure of a transistor is a random variable X which is exponentially distributed with mean = 50. It is observed that after 40 hours the transistor is still working. Find the conditional probability that X > 65.
The manager of a local branch of a bank believes that over the past few years the bank has begun to cater to a different clientele and that the average amount withdrawn from its ATMs is no longer $140.00.
to get the best deal on a cd player tom called eight appliance stores and asked the cost of a specific model. the
On the TV show "Let Make a Deal," one of the three boxes (A, B, C) on the stage contains keys to a Lincoln Continental. The other two boxes are empty.
What are impacts that flexible work schedules can have on a employee's productivity?
1 the speeds of car traveling on interstate highway i-35 are normally distributed with a mean of 74 miles per hour and
question when certain quantities are measured the last digits tend to be uniformly distributed but if they are
Determine the value of the standard deviation of the distribution of the sample mean of all possible samples of size 40.
spiders webs angles to the vertical of the earths surface are recorded. the following questions can be answered using
Goofy's fast food center wishes to estimate the proportion of people in its city that will purchase its products. Suppose the true proportion is 0.07.
1. if the correltation coefficient has associated probability value of .02 thenthe result is importantthe hypothesis
Where does the p-value come from for the spatial scan statistic used in SaTScan? How Monte Carlo simulation is used to derive a p-value for a cluster ?
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