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As part of the dietary-instruction program, ten 25-34-year-old males adopted the vegetarian diet for 1 month. While on diet, average daily intake of linoleic acid was 13 g with standard deviation = 4 g. If average daily intake among 25-34-year-old males in general population is 15 g, then, using the significance level of .05, test hypothesis that intake of linoleic acid in this group is lower than that of general population. Also, calculate p-value for hypothesis test.
A 2005 study found that 202 women held board seats out of a total of 1,195 seats in the Fortune 100 companies. A 2003 study found that 779 women held board seats out of a total of 5,727 seats in the Fortune 500 companies.
Produce the scatter plot for sodium and bp. Do you think there are any outliers?
Determine the variance of firm's profit for the month.
Gas Station pump signs, at one chain, encourage customers to have their oil checked, claiming that one out of every four cars should have its oil topped.
The Wall Street Journal reported some interesting statistics on the job market. One statistic is that 40% of all workers say they would change jobs for "slightly higher pay."
Review the Christian year pie chart and write a summary in which you (a) describe the significance of the holy days on the chart.
Design a contingency table that will hold your data. What are your degrees of freedom and critical value at a 0.05 confidence level? You do not need data to answer this.
Compute the z-score for M = 89 for a sample of n = 25 scores. Is this sample mean in the middle 95% of the distribution?
Which of following statements would be right concerning a twotail test at 0.05 level of significance? We can conclude that average cottage cheese consumption in America is at least 0.705 pound more or less than 2.75 pounds per person per year.
If you have n independent flips of a coin with probability p of landing heads. And a changeover occurs whenever an outcome differs from the one preceding it.
If someone had x=2 job changes, what does the least squares line predict for y, the annual salary?
Sketch the distribution of Stanford -Binet IQ test scores. Write the equation that gives the z score corresponding to a Stanford-Binet IQ test score. Sketch the distribution of such z scores.
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