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In illinois a random sample of 85 eighth grade students have a mean score of 265 with standard deviation of 55 on the national mathematics assessment test. Result prompts are school administration to decide the mean score for the states eith graders on the examination is more than 260. At alpha equals 0.04 is there enough evidence to support the clim?Whats the claim mathematically and identify Ho and Ha.Find sd test stat 2 and its corresponding areaFind the p-valueDecide wether to reject or fail to reject HoInterpret decision in the contest of the original claim.
Use a 5% significance level (95% confidence level) to test the claim that the different vehicle categories have the same mean MPG.
A stationary store wants to estimate the mean retail value of greeting cards that it has in inventory A random sample of 100 greeting cards. a mean value of 2.55 and standard deviation of 0.44
Student received the following grades last semester. Find the student's semester grade point average. Course Credits Grade/Points Statistics 4 A / 4.0.
A department store, on average, has daily sales of $29,876.76. The standard deviation of sales is $1000.00. On Tuesday, the store sold $34,893.71 worth of goods.
List and describe the three assumptions of ANOVA. When should researchers use different hypothesis tests for independent and related samples? What is the difference between a one-way-ANOVA and a two-way-ANOVA?
At.01 significance level is it sensible to conclude that modification decreased the number of traffic accidents?
A random sample of 15 college graduates revealed that they worked an average of 5.3 years on the job before being promoted. The sample standard deviation was 1.2 years. Using the 0.95 degree of confidence, what is the confidence interval for the p..
If the sum of squares total is 800 and the sum of squares error is 170. What is the r-squared value?
Using the .01 significance level you will test to conclude if the analyst finds evidence that the boast of dealership A is correct. What will be your critical value?
When there are multiple observations per subject, what issues are there with doing a MNL and an ordered logit model, answer in detail and provide example.
An American put option to sell a swiss franc for dollars has a strike price of $0.80 and a time to maturity of one year. The volatility of the swiss franc is 10%
From this group of 2000 accounts what is the probability that an account has a balance of $500 or more, given that it is 3 or more years old?
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