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The expression
Means:
a. In repeated samples, you are 95 percent certain that the value of x is µ.
b. Once you take a specific sample and calculate the value of x, you are 95 percent certain that the value calculated is µ.
c. The probability that population mean deviates from the sample mean is 95%.
d. Ninety five percent (95%) of the means from samples size n deviate from the population mean by no more than ± standard errors.
Proportion of free throw attempts that are successful. In the NBA, FT% is normally distributed with a mean of 0.721 and a standard deviation of 0.082. Which percentage of NBA players have a FT% lower than 0.784?
Compute the mean, median, mode and standard deviation for the following discrete probability distribution.
From past estimates, manager thinks that about 4% of customers have expressed dissatisfaction. What sample size must you use for this survey?
in 1988 the mean expenses for college were 8000 with a standard deviation of 800. if 40 students were selected at
By using the normal probability distribution, what is the probability the car will be repaired in 35 minutes or less?
Hypothesis test of the claim has been conducted and that the conclusion of the test was to reject the null hypothesis. Identify the population to which the results of the test apply.
Rivets used to secure the stainless steel sheet metal of aircraft wings are designed to withstand certain shearing forces. It is knownthat because of random variations in location the load on a rivet is Weibull distributed with a scale parameter of 7..
assume the random variable x is normally distributed with mean u87 and a standard deviation o5. find the indicated
Find out the mean number of letters that will arrive in two days.
In an effort to counteract student cheating, the professor of a large class created four versions of a midterm exam, distributing the four versions among the students in the class.
how do i solve this problem simulate the probability that a random integer between 1 and 5000 is divisible by 4 7 or
Two sample z-test for the difference between two population proportions
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