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Suppose that a random sample of 16 measurements from a normally distributed population gives a sample mean of x-bar = 13.5 and a sample standard deviation of s = 6. Use rejection points to test Ho: μ ≤ 10 versus Ha: μ > 10 using the levels of significance given below:
What is the value of the test statistic t:
What is the rejection point at α = .10 and indicate if you would accept or reject Ho? t.10 =
What is the rejection point at α = .05 and indicate if you would accept or reject Ho? t.05 =
What is the rejection point at α = .01 and indicate if you would accept or reject Ho? t.01 =
What is the rejection point at α = .001 and indicate if you would accept or reject Ho? t.001 =
Then use ogive to estimate median and first and third quartiles. Also utilize it to reply following question: What percent of 60 mutual fund loads are less than 75.
A portfolio p of consisting 60% of stock X and 40% of stock Y, has a correlation ρpM = 0.62 with the market. What is the portfolio volatility? Statement on the diversification effect.
Where should the warranty limits be set so that only 10 percent of the HDTVs need repairs at the manufacturer's expense?
A game involving a pair of dice pays out $4 with probability 16/36, costs you $2 with probability 14/36, and costs you $6 with probability 6/36.
Using the .05 level of significance: a) Is there a difference among types of gasoline? b) Is there a difference in the cars?
One of the most important uses of a correlation is its potential use in_________
The singer has the following variety of songs, in no particular order: 7 relationship songs, 6 songs about people, 4 reflective songs, and 4 songs about places.
Use a scatter plot to determine the relationship between the x values and the y values.
Computation of Expectation, Variance and Covariance.Calculate the variances of Y1 and Y2.
To test the difference between two means using two mean z test.
At 0.01 significance level is it sensible to conclude that modification reduced number of traffic accidents?
What extremely important characteristic of the data set is not considered in the hypothesis test?
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