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Walleye is a common game fish. Adult walleye have a length with a mean of 44 cm and a standard deviation of 4 cm and the distribution of lengths is approximately Normal. What fraction of walleye are between 40 and 48 cm in length?
Find out equation of the line of best fit. Find out r - Is there a strong relationship?
How does your sample compare to this theoretical distribution of sample means and what are the mean, variance, and standard deviation of the observations in your sample?
Determine the 95% confidence interval for the population mean, based on the sample mean.
What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student
Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).
We often hear you can lie with statistics. This is one way of saying statistics can be easily mis-communicated. Find one example of how statistics are mis-communicated and explain why there was a mis-communication and what you would do to correct ..
At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by x-Game has exceeded the industry standard.
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha. b) Explain to management what your findings are and what this suggests about future decisions vs work options.
A doctor believes that the standard deviation of systolic blood pressure is 450. A random sample of 24 patients found a standard deviation of 520. Assume the variable is normally distributed and a = 0.01. What are the critical values?
Find out the probbility that exactly five arrive within two days?
The p-value for a test statistic is .085, what is the minimum level of significance required to reject the null hypothesis?
Choose the proper conclusion regarding the claim that the population have different variances.
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