Probability of pass a test
The probability of pass a test is 0.76 at a particular school. Assume we randomly choose a class of 10 students from this school. The following questions deal with this class of ten students.
Determine the probability of exactly 3 students passing?
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What is the null hypothesis? Test whether or not either leads to above-average IQ results. What are the null hypotheses and p-values?
Determine the equation for regression line which best fits these data and provide the correlation. Show your work. Interpret the meaning of slop of the regression line in terms of live births and time.
An independent research company tests 36 phones and finds out that the average range is 140. Does this show that the company claim is incorrect? Determine the null hypothesis and p-value?
The rectangular lettuce patch, 220 square feet in area, is to be fenced off against rabbits. Determine least amount of fencing needed if one side of land is already protected by the barn.
Determine the expression for the probability that 1 shuttle is lost in 10 flights? Determine the expression for the probability that 2 shuttle is lost in N flights?
An Independent research company tests 36 phones and finds out that the average range is 140. Does this show that company claim is incorrect? Determine the null hypothesis? What is the P-Value?
An independent consumer group tested radial tires from 2 major brands to find out whether there were any differences in the expected tread life. The data (in thousands of miles) are given here:
The photoresist thickness in semiconductor manufacturing has a mean of 10 micrometers and a standard deviation of 1 micrometer. Assume that the thickness is normally distributed and that the thicknesses of different wafers are independent.
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