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Suppose the average client charge per hour for out-ofcourt work by lawyers in the state of Iowa is $125. Suppose further that a random telephone sample of 32 lawyers in Iowa is taken and that the sample average charge per hour for out-of-court work is $110. If the population variance is $525, what is the probability of getting a sample mean of $110 or larger? p = What is the probability of getting a sample mean larger than $135 per hour? p = What is the probability of getting a sample mean of between $120 and $130 per hour? p = Round the answers to 4 decimal places. The tolerance is +/- 0.0005.
A new restaurant with 123 seats is being planned. Studies show that 57% of the customers demand a smoke free area. How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?
The data for the cats, you realize that if you now include data from one more cat, Redbeard, the mean whisker length of the cats becomes 10.514 cm. What was Redbeard's mean whisker length?
The difference in mountain elevation of 26,200 feet and 1,100 feet below the surface of the ground. I am thinking +26,200 feet minus -1100 feet
Create a stem-and-leaf display of these data. Create a box plot of these data.
What is the logic behind using the sum of the products of deviation scores as the numerator of the formula for the correlation coefficient? Is this logic sound? Why or why not?
According to the hypothesis that the current year's seed does not meet the 85% germination rate standard at the 5% level of significance. What is the corresponding test statistic value?
Each home was 24 and the standard deviation of the sample was 5 people. Develop a 98 percent confidence interval for the population mean.
Assuming that any newspaper left over has no value and that running short has no effect on any customer's tendency to return, determine the losses due to understockting and overstockting.
A random sample of eight adults aged 30 years were asked how much they spent on medical costs in the year 2011. The following data were measured. Compute the sample standard deviation.
Use the data to Compute a 90% confidence interval to estimate the population average difference. Assume that the number of passengers is normally distributed.
Make a conclusion about the hypotheses bases on your result( not why, should be it means) Required minimum-1 page
Which sessions, morning or afternoon, had more stable or uniform attendance over three-day period? Describe by using the suitable calculation for each data set and compare two calculations .
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