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A poll found that 38% of male voters and 46% of female voters support a particular candidate. To test whether this candidate has equal levels of support between male and female voters, the null hypothesis should be:
a) H0 : pmale =pfemale
b) H0 : pmale =50 % , H0 : pfemale= 50 %
c) H0 : pmale =38 % , H0 : pfemale= 46 %
d) H0 : pmale <pfemale
The 99% confidence interval estimating the proportion of all students at the university who prefer outdoor exercise is given by which of the following?
Develop a 99% confidence interval for the population proportion.
Analysis of data sets assignment
What is the probability that the team wins tonight and that there will be a large crowd at tomorrow's game?
Suppose that you are the director of table game operations at a large casino, known especially for its poker room. You are interested in determining the average number of hands the casino should expect per hour during peak hours in the poker room.
Suppose that past data are not available for developing a planning value for p; therefore, you will use p = 0.050 for the planning average.
Compute the appropriate Test Statistic to test null hypothesis that mean of population is 4.3 against alternative hypothesis μ ≠ 4.3.
I understand how to do a time series graph with one variable versus time in years, but I am not sure how to graph if the time is in months with more than one variable with a scatter plot.
If the sample standard deviation of the sample was $630 also the sample size was 50. Findout the 90% confidence interval of true mean.
The manager of a department store wants to determine what proportion of people who enter the store use the store's credit cards for their purchases.
Develop a trend line for the demand for fertilizer using computer software. Data collected on the yearly demand for 50 pound bags of fertilizer at Wallace Garden Supply are shown in the following table:
The probability of an randomly selected person quits a team is 0.125. Assume the team has n members. Determine the smallest n that the team needs to have if the probability of the team has at least 20 members left is 0.9.
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