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The annual sales of romance novels follow the normal distribution. However, the mean and the standard deviation are unknown. Forty percent of the time, sales are more than 470,000 and 10 percent of the time, sales are more than 500,000. What is the mean and standard deviation of the distribution?
Find the test statistic value for two mean tests using equal variance formula.
Find the probability that he will answer all 10 questions correctly.
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?
Among 12 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health.
A new shopping mall is considering setting up an information desk manned by one employee. Based upon information obtained from similar information desks, it is believed that people will arrive at the desk at the rate of 15 per hour.
Create a 90% confidence interval for true mean amount of cholesterol in chicken eggs.
Can you please describe what I need to do to complete this? I do not understand how to plot the figures within the spreadsheet or calculate them.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
What is the appropriate conclusion based on the outcome of the hypothesis test?
Calculate the MEAN and STANDARD DEVIATION for the distribution below:
The quantity C=4 refers to the fact that four of these data values were affirmative. Given this, then how would C=4 be classified?
What are examples in which non-parametric tests are used to analyze business related problems in general, and more specifically, problems related to marketing?
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