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Calculate the minimum required sample size to make 95% CI for a population proportion with margin of error no more than 0.04. Based on previous experience, assume it's safe to assume the proportion to be less than 40%.
Find the critical value at the .01 level. Decide if the null hypothesis is to be rejected or not. Make a summary table for your ANOVA test.
If member of sales force submits the entertainment expense (dinner cost for four) of $190, must this expense be considered unusually high. Calculate and interpret z- score for each of six entertainment expenses.
at one college gpas are normally distributed with a mean of 2.6 and a standard deviation of 0.4. what percentage of
The total cholesterol level of US females 2 years old or older is normally distributed with a mean of 206 mg/dl and a standard deviation of 44.7
air enters a compressor with a pressure of 14.7 psia a temperature of 70 degreef and a volumetric flow rate of 40 ft3s.
Variance hour 100 and battery y: sample size 12,mean hour 1020,variance hour 121. can you conclude that two types of batteries are having the same mean life?
1. Analyze the policy of containment. How did the United States enact this policy?
Please, 180 words concerning the question below,Does a negative correlation mean there is a weaker relationship between two variables? Why or why not?
in testing the difference between the means of two normally distributed populations using large independent random
If you use a 0.10 level of significance in a two-tail hypothesis test, what is your decision rule for rejecting a null hypothesis that the population mean is 500 if you use the Z test?
Find the probability that a random selected student takes neither foreign language course. (Show work and write the answer in simplest fraction form)
Use the data of Exercise 128 to illustrate that class marks are given by the midpoint between successive class boundaries as well as the midpoint between successive class limits.
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