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For a normal distribution with a mean of 172 and a standard deviation of 29,please help find the value of Z for a random value to be 228. (Use 2 decimal digits)
An inspector selects 110 items at random from the assembly line. Approximate the probability that exactly 3 defectives are selected.
AUTO-ACCIDENT RATES An insurance company has compiled the accompanying data relating the age of drivers and the accident rate.
What is the probability that exactly one of the players will hit the green in regulation?- What is the probability that all three players will hit the green in regulation on all four rounds?
500 students took a chemistry test, I sampled 100 students to estimate the average score and the standard deviation.
Finding Normal probabilities using standard normal table or Excel built in functions
data from six students relating number of hours of preperation x and test score y yield a linear correlation
Write down the sample mean and sample standard deviation - Explain why you chose your hypotheses as such
Suppose a random sample of two of these times is selected with replacement.- Find the sampling distribution of the minimum time.- Find the sampling distribution of the total time.
Tomatoes. Agricultural scientists are working on developing an improved variety of Roma tomatoes. Marketing research indicates that customers are likely.
During nine days in a festival, the highest sale of a shop was on sunday and was 900„5 more than the average sale for other days. If the standard deviation of the sale during the festival is 33.33, find the standard deviation leaving that the highes..
the following estimated regression equation relates sales to inventory investment and advertising expenditure.
How is the expected frequency of a category calculated for a goodness-of-fit test? What are the degrees of freedom for such a test?
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