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Finding the value of test statistic and P-value also interpret the result.
In the year 2003 the mean fare to fly from Charlotte, North Carolina, to Seattle, Washington, on a discount ticket was $267. A random sample of round-trip discount fares on this route last month gives:
$321.00
$286.00
$290.00
$330.00
$310.00
$250
$270
$280
$299
$265
$291
$275
$281
At the .01 significance level can we conclude that the mean fare has increased?
What is the p-value?
Discuss whether the percent distribution of the cross-tab and chi-square supports/does not support the researcher's hypothesis.
Draw a normal probability plot for residuals using excel or Minitab. Do the residuals seem normally distributed? If yes, why?
Identify a research question from your professional life, research interests, or everyday experience that could be addressed by this analysis.
Determine the calculated value of the test statistic? What distribution does test statistic have when null hypothesis is true?
Compute a 5-month moving average forecast for June through January.
What is the 95% confidence interval estimate for the difference between the mean reflectivity reading for Paint A and Paint B? Please complete the blank: "we can be 95% confident that the true difference between the actual means is?
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
Utilizing a binominal experiment, that is each trail can be reduced to two outcomes, construct a binomial distribution.
Find out sample correlation coefficients of (I) age with dry weight, and (2) age with log 10 dry weight. Interpret your results.
From Group of 40 People, a jury of 12 people is selected. In how many various ways can a jury of 12 people be selected?
You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?
The mean amount purchased by a typical customer at Churchill\'s Grocery Store is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the foll..
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