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The manager of a sport fishing products company wants to test the null hypothesis that a certain lead fishing weights have a mean weight of 4.0 ounces. Under what conditions would the manager commit a Type 1 error?
Assume then money spent is uniformly distributed between these amounts. Determine the mean amount spent on insurance?
Determine how large a sample would be necessary to estimate the population proportion with a margin of error of .05 at 95% confidence
find probabilty that the average of those counts is more than 83.0 mosquitoes per square meter. Assume the variable is normally distributed.
Compute the z-score for M = 89 for a sample of n = 25 scores. Is this sample mean in the middle 95% of the distribution?
Each scenario involves randomly selecting n i observations from four, independent, Normal populations as described.
An economist wishes to estimate the average family income in a certain population. The population standard deviation is known to be $4,500, and the economist uses a random sample of size = 225.
Find the LCD for the following rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator.
Define a game and prepare the odds of winning. The game could be a card game with two cards or a dice game. Use MS-Excel (if possible) to solve this problem
The stock price on the next day can either go up by $10 with probability 40% or go down by $10 with probability 60%. What is the probability that the 2nd day's stock price is $50 given that the 1st day's price is $60?
At the .05 significance level, is there a difference in the proportion of viewers watching the three channels?
Chebyshev's Theorem states that the percentage of observations in a data set that should fall within five standard deviations of their mean is
Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
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