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1. Using SPSS, check the following data for homogeneity of variance:
Group 1 Group 2 Group 31 1 12 4 83 9 184 16 32
a. Using an alpha of .05, what can you conclude about homogeneity of variance from the output? Word process your responses on the SPSS output pages.
How large should the sample be if I want to maintain a 95 percent level of confidence and suffer a maximum error of $2.00 in my estimate of the highest price consumers are willing to pay?
What is the 95 percent interval for the population mean?
You take a random sample around town and calculate a p-value for your hypothesis test of 0.0913. What is the appropriate conclusion? Conclude at the 5% level of significance.
If a six appears for the second time, the process is repeated with the move depending on the number shown and the previous throws. If a six appears for the third time, the turn of the player ends without moving the token.
X is a normally distributed random variable with mean 10 and variance 24. a. Find P(X bigger 14) b. find P(8 smaller X smaller 20)
Find out the probability
Your regional manager is impressed with how you've employed spreadsheets to aid your small company in saving time and more accurately figuring out payroll amounts.
An automobile manufacturer has a new model that they claim gets 27 miles per gallon. A consumer testing agency chooses 50 of these cars and finds that the sample mean is 25 miles per gallon and the sample standard deviation (s) is 3 miles per gall..
What is the probability that at most five cases of E. coli per 100,000 are reported in California this year?
Do not forget to test for any applicable difference in means (Tukey implies).
Scores on a test are normally distributed with a mean of 60.9 and a standard deviation of 12. Find P81, which separates the bottom 81% from the top 19%.
If a lot is known to contain 10% defective items, find out the probability that lot will be rejected? Accepted?
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