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As part of a dietary-instruction program, ten 25-34-year-old males adopted a vegetarian diet for 1 month. While on the diet, the average daily intake of linoleic acid was 13 g with standard deviation = 4 g. If the average daily intake among 25-34-year-old males in the general population is 15 g, then, using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
Developing the histogram and pie chart for the sample data.
What is the probability that at least three students choose Supreme Chocolate?
Also, assume that X = number among 20 randomly selected coffee purchasers who select a national brand, and that the random variable X follows the binomial distribution.a. What is the probably that at most 15 customers choose a national brand?
A new book is being released and a bookstore predicts that 70% of customers that walk through the door on the release day will purchase the book.
A population is Normally distributed and has a σ =24. Samples of size 25 have a sample mean of 100. Find the 90% confidence interval for the population mean.
What is the probability that a randomly chosen U.S. adult invests in stocks, given that s/he invests in fixed income instruments? What is the probability that a randomly chosen stock investor also invests in fixed income instruments?
The manager requires the estimate to be within 1.0 minutes of the population value. What sample size is needed?
In other words, explain why, all else being equal, as sample size increases the likelihood of finding a statistically significant relationship increases.
What are the expected value and variance of the following probability distribution?
Calculate, test, and interpret the relationship between two variables using the correlation coefficient.
Determine the distribution of X? Determine its parameters?
Take a deck of cards. A deeck has 52 cards with two major colors(Red and Black), with 26 cards each. Red colors comes in two shapes(heart and diamond)
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