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Hotels are rated on the basis of one to five stars. The Holiday Stay Hotel chain rated all 50 of it's hotels. The data is shown in the diagram below.
Number of Stars
Frequency
1
7
2
10
3
22
4
8
5
1. Find the standard deviation for this set of data to the nearest hundredth.
2. Did you calculate the sample or population standard deviation?
3. How many hotels have ratings that fall within one standard deviation of the mean?
What is the 95% confidence interval for the true average number of hands per hour during peak hours?
Why is such information important to the business?
when only concerned about the results at one end of the distribution curve we use a one-tail test. we generally see a
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Find the minimum sample size needed, using a prior study that found that 42% of the respondents said they think their president can control the price of gasoline.c) Compare the results from parts (a) and (b).
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The estimates for the standard deviations for both Exports and Imports were slightly modified downwards and were 12 B$ and 16 B$ respectively. The mean values were unchanged. Taking these changes into account, re-calculate the probability that the..
What is the probability that a randomly selected fertilized egg hatches in less than 19 days? (Round to four decimal places as needed).
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A psychologist is studying the distribution of IQ scores of girls at an alternative high school. In wishing to estimate the average IQ scores in this school.
in 2009 the number of feral quaker parrots living in austin was 250. in 1992 there were only 15 feral quaker parrots.
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