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Use the t-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal.
Test null hypothesis: u=15 vs alternative hypothesis: u>15 using the sample results x with a line above = 17.2, s=6.4 with n=40.
t-statistic = ?
p-value = ?
What is the conclusion? Reject or do not reject?
A box contains three marbles - one red, one green, and one blue. Consider an experiment that consists of taking one marble from the box, then replacing it in the box and drawing a second marble from the box.
What is the calculation if facebook reports that the average number of facebook friends worldwide is 175.5 with a standard deviation of 90.57 . If i was to take a sample of 25 students, what is the probability that the mean number of facebook frie..
Information regarding random samples of annual salaries
(a) What is the average number of customers in the shop? (b) What is the proportion of potential customers that enter the shop? (c) If the barber could work twice as fast, how much more business would he do?
the number of ships to arrive at a harbor on any given day is a random variable represented by x. the probability
If test results over long period of time illustrate that 5% of x values are over 2.1 pounds and 5% are under 1.9 pounds, determine mean and standard deviation for population of products produced with this process?
At least half the patients are under 15 years old? First, describe how this can be modelled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20 percent.
we know that the average life of a light bulb is 10000 hours. there are 12 light bulbs in a classroom. in order for a
let x be binomial with parameters n15 and p.2a find the expression for density for xb find the expression for the
A regression of attitude toward legalizing marijuana on age (X1) and education (X2) produced the following estimated coefficients and standard errors for a sample of 265 persons.
Using the data on the CD, make a scatterplot of the average tuition for four-year colleges against the tuition charged for two-year colleges. Describe the relationship.
Explain the resource-based view and its relation to strategic management
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