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GIL internet services record customer usage patterns. Historically they have found the duration of an internet session is normally distributed with a variance of 550.2 minutes2. What is the probability of a randomly selected internet session being more than half an hour either side of the mean internet session duration? (4 decimal places)
For a sample size of four, there are 24 = 16 possible sets of signs associated with the four ranks. List the 16 possible sets of ranks that could be positive.
Calculate the test statistic, determine the p-value, and at α = 0.05 significance level, test the hypotheses and draw your conclusion.
1. in a statistical test of hypotheses we reject the null hypothesis at alpha ifa the p-value is smaller than alpha.b
A single cell can either die, with probability .1, or split into two cells, with probability .9, producing a new generation of cells. Each cell in the new generation dies or splits into two cells independently with the same probabilities as the in..
Good morning- I had a tutor from TransTutors assist me with this statistics assignment last week and the answer they provided for me was not correct, therefore giving me a grade of 2.7/30. The professor is allowing me to resubmit and has given me ..
Suppose that you perform a significance test regarding a population mean, and that the evidence does not warrant rejection of the null hypothesis.
It can be shown that a sum of independent normally distributed random variables is also normally distributed. Do all functions of normal random variables.
Assume the FDA has established 200 grams of fruits and vegetables as minimum daily intake. Determine the probability woman selected will meet this minimum intake?
Suppose X is a binomial random variable with n = 25 and p = 0.80. Find the mean, variance, and standard deviation of X
4. Although most of us buy milk by the quart or half gallon, farmers measure daily production in pounds. Ayreshire cows average 47 pounds of milk a day with a standard deviation of 6 pounds. For Jersey cows, the mean daily production is 43 pounds wit..
What is the probability that a randomly selected exam will have a score of at least 71? What percentage of exams will have scores between 89 and 92? If the top 2.5% of test scores receive merit awards, what is the lowest score eligible for an award?
What is the critical value of the Chi-square? Compute the value of Chi-square. What is your decision regarding H0?
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