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According to a website about salaries, the national average salary as of October 2003 for a human resources clerk was $29,932. We assume that the annual salaries for clerks are normally distributed with a standard deviation of $1.830.
a.) Find the percent who earn less then $27,172.
b.) Find the percent who earn more than $32,256
A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?
suppose that the correlation r between two quantitative variables was found to be r 0. this means thatthere is a
If a six appears for the third time, the turn of the player ends without moving the token. Determine the sample space of one such throw and determine the probability for each event.
Construct a decision table for this problem. Include all conditional values and probabilities in the table.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
The results of a survey for an airline are shown below. Use the chart to find the probability that the traveler was
Suppose the true population proportion is 68%. What is the probability of observing a sample proportion 64% or smaller.
Give an example of a hypothesis test you could perform at a Surgery Center and what the hypotheses would be. State the null and alternative hypotheses in proper format.
question the macburger restaurant chain claims that the waiting time of customers for service is normally distributed
A biased coin with probability of head being .6 is tossed 12 times. What is the probability that number of head would more than 4 but less than or equal to 10.
he life expectancy of a brand of hair dryer is normally distributed wiht a mean of four years and a standard deviation of 8 months.
We are interested in determining whether or not the opinions of the individuals (as to Yes, No, and No Opinion) are uniformly distributed.
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