Two batteries, with voltages V1 and V2, are connected in series. The total voltage V is given by V = V1 + V2. Assume that V1 has mean 11.00 V and standard deviation 2.000 V, and that V2 has mean 6 V and standard deviation 0.5 V. Find μV .Assuming V1 and V2 to be independent, find σV. (Round the final answer to three decimal places).
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Two batteries, with voltages V1 and V2, are connected in series. The total voltage V is given by V = V1 + V2. Assume that V1 has
Find μV .
Assuming V1 and V2 to be independent, find σV. (Round the final answer to three decimal places).
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- Two batteries, with voltages V1 and V2, are connected in series. The total voltage V is given by V = V1 + V2. Assume that V1 has mean 12 V and standard deviation 1 V, and that V2 has mean 6 V and standard deviation 0.5 V. Find μV. Assuming V1 and V2 to be independent, find σV.A truck company decides that every year, the distance traveled for the truck usually distributed normally with average traveled 50.0 thousands miles and the standart deviation os 12.0 thousands miles Questions A. How many of the 1,000 trucks in the fleet are expected to cover between 30.0 and 60.0 thousand miles this year B. How many miles will at least 80% of the trucks travel C. How many of the 1,000 trucks in the fleet are expected to cover between 30.0 and 60.0 thousand miles this year, if the standart deviation is changed to 10 thousands milesForel Series connection and signals are required, my T=12
- Solve for the following (Power Series)A sample of 12 radon detectors of a certain type was selected, and each was exposed to 100 pCi/L of radon. The resulting readings were as follows: 105.6 90.9 91.2 96.9 96.5 91.3 100.1 105.5 99.6 107.7 103.3 92.4 Does this data suggest that the population mean reading under these conditions differ from 100? (a) State the null and alternative hypotheses. (b) Calculate, correct to 2 decimal places, (i) the sample mean, x ; and (ii) the sample standard deviation, s. (c) Evaluate the appropriate test statistic. (d) Test these hypotheses at 0.05 level of significance.In the given question as solows , verify that the Ratio Test is inconclusive for the p-series:- see the equation as attached here
- A sample of 12 radon detectors of a certain type was selected, and each was exposed to 100 pCi/L of radon. The resulting readings were as follows: 104.3 89.6 89.9 95.6 95.2 90.0 98.8 103.7 98.3 106.4 102.0 91.1 a)Does this data suggest that the population mean reading under these conditions differs from 100? State and test the appropriate hypotheses using =.05. b) Suppose that prior to the experiment, a value of teta=7.5 had been assumed. How many determinations would then have been appropriate to obtain beta=.10 for the alternative u=95 ?A random sample from a normal population has:n = 8, X-bar = 16, and s = 3. Find the 95% PI for asingle new value from the population.An SRS of 100 flights by Speedy Airlines showed that 64 were on time. An SRS of 100 flights by Happy Airlines showed that 80 were on time. Let pS be the proportion of on-time flights for all Speedy Airline flights, and let pH be the proportion of all on-time flights for all Happy Airlines flights. Is there evidence of a difference in the on-time rate for the two airlines? To determine this, you test the hypotheses H0 : pS – pH 0, Ha : pS – pH 0. The P-value of your test is 0.0117. Which of the following is an appropriate interpretation of the P-value? a. If the on-time rates for the two airlines are equal, there is a 0.0117 probability of getting samples with a difference as far or farther from zero as these samples. b. If the on-time rates for the two airlines are not equal, the probability of getting samples with a difference as far or farther from zero as these samples is 0.9883. c. The probability of making a Type I error is 0.0117. d. The probability of making a Type II error…
- Q1. An anthropologist wants to collect data to determine whether the two different cultural groups that occupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights of adult females are as follows Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groups the same? Set alpha to .05.An operator has measured the distance between the sales centers where he will sell his product and the factory in terms of the time spent by the automobile and as a result of his evaluations, the table defining the data set in which the time between the factory and sales centers is measured in minutes is given as follows. Taking these values into account;a) Calculate the coefficient of variation of the series.b) Calculate the skewness coefficient of the series.Given the normally distributed variable X withmean 18 and standard deviation 2.5, find(a) P(X <15);(b) the value of k such that P(X <k) = 0.2236;(c) the value of k such that P(X >k) = 0.1814;(d) P(17 < X < 21).---------------------------------
