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1. An SRS of size 10 is drawn from a population that has a normal distribution. The sample has a mean of 111 and a standard deviation of 4.
Give the standard error of the mean___.
2.What is the value of t*, the critical value of the t distribution for a sample of size 10, such that the probability of being greater than t* is 1%?
t* =
3.What is the value of t*, the critical value of the t distribution for a sample of size 26, such that the probability of being greater than t* or less than -t* is 1%?
Derive an expression for the closed loop transfer function: Because the output is related to the actuating signal by G(s), we have
questionnew spark plugs have just been installed in a small airplane with a four-cylinder engine. there is one spark
the 70-year long-term record for weather shows that for new york state the annual precipitation has a mean of 39.81
Calculate the mean, median, and standard deviation for ounces in the bottles and construct a 95% Confidence Interval for the ounces in the bottles.
question a survey is being conducted by kint univsion tv to find out how much time maquila company executives spend
A new restaurant with 123 seats is being planned. Studies show that 57% of the customers demand a smoke free area. How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?
If the scores are approximately normal with mean 544 and standard deviation 103, what minimum score would a student need in order to score in the top 10% of those taking the test?
Construct a 95 percent confidence interval for the true mean. (b) Why might normality be an issue here? (c) What sample size would be needed to obtain an error of ±10 square millimeters.
Approximately 34% of all university professors are extroverted Suppose you have classes with 5 Different professors. Find probability that 1 is extroverted? Find probability that 2 are extroverted.
At the 0.05 level of significance, test whether the software package has reduced the average time it takes to complete deliveries.
Find the strategy that maximizes the manufacturer's expected net earnings and Should the manufacturer routinely obtain credit rating reports on those retailers who seek credit approval? Why or why not?
suppose you roll two dice simultaniously. the possible outcomes are listed
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