Q/६ using integrat test: n - 14 (n+1)(n-4) Test the following series

How would I find the values of u and o?

You obtain 336 successes in a sample of size n1=391n1=391 from the first population. You obtain 419 successes in a sample of size n2=472n2=472 from the second population. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribution.What is the test statistic for this sample

X is the number of defective parts in a sample of 10 randomly selected parts coming from a manufactoring process in which 1.5% of all parts are defective.    How do I find the probabilty the sample contains no broken parts?

Seatbelts is a built-in R time-series, giving the monthly totals of car drivers in Great Britain killed or seriously injured Jan 1969 to Dec 1984. We are interested in some descriptive statistics related to the rear column of the Seatbelts time series. We can access the data directly by using the assignment x<-Seatbelts[,4]. (In R use ?Seatbelts for info on this time series.) Remember: x <- Seatbelts[,4] a.Calculate the sample mean of x.1 b. Using the R quantile function, find the .70 (70th) percentile of x. 2 c. Calculate the interquartile range of x using R. 3 d. Calculate the sample median of x. 4 e. Calculate a 10/192 trimmed mean for x. 5 f. Calculate the sample variance of x. 6 g. Calculate the sample standard deviation of x. 7 h. What proportion of the x values are within 1.0 sample standard deviations from the sample mean 8 i. Calculate the minimum of x. j. What number do you get if you add up the values in x? 10

II 3/4 4 5.5.5.5 54 1) (0.12)(0.12)X0.12)_ co.122 (0.12X0.12) (-2) _G2) %3D 5-5 2) (-2) C-2' 3) Co-12 7.7.7 73 4) 7.7-7-7-7 - 156 5) 159 (-7) 6) (-7) 7) 3. 8) 9) 6°

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O RANDOM VARIABLES AND DISTRIBUTIONS Normal approximation to binomial In a certain city of several mmion people, 6.2% of the adults are unemployed. If a random sample of 250 adults in this city is selected, approximate the probability that at most 12 in the sample are unemployed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps. (If necessary, consult a list of formulas.) Explanation Check Terms of Use Privacy Accessibiney

Last 3 parts plz

Find Var(X)