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Find the sample size in order to obtain p estimate
A company auditor was interested in estimating the total number of travel vouchers that were incorrectly filed. In a SRS of size n =50 oft of the group of N = 250, were filed incorrectly.
How large sample should be selected in order to obtain p estimate with a bound of 0.08 on the error of estimation.
(a) Use the data already collected to determine the bound for the further study.
(b) Do not use the information provided above.
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 .
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
What is the arithmetic mean selling price?
Point out your final decision concerning hypothesis test and compute p-value for test.
Create a 98 percent confidence interval for the population mean.
Determine mean and standard deviation for number of erroneous returns per batch.
The average number of typos on one page of a manuscript is 8. What is the probability that 4 to 6 type appear on 2 pages of the manuscript? Imagine Poisson distribution.
Compute the variance and standard deviation of the number that will arrive within two days.
Use a calculator with mean and standard deviation keys to verify that the sample mean is x = 5.63 pups with the sample standard deviation s = 1.78 pups. (b) Find a 75% confidence interval for the population.
Which is the probability that the median of the sample is between $17 and $20?
Find the test statistic P-value, and critical value, and state the final conclusion.
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.
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