Let T follow the student distribution with degree of freedom v = 16. If P(T > k ) = 0.015, then k= None of the other options 2.382 O 2.764 2.303
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- Compute the probabilities for each random varlable x. (decimal form: hundredlhs) L Given the variable x and the frequency of Its occurrence P(X) f. 3 1. 2. 10 15 26 3. 20 10 4. 25 2. 5.Two fair dice are tossed repeatedly. The random variable X is the toss on which a total of 11 appears for the first time. Theoretically, X follows the geometric distribution. Find: E(X) Var(X) Find P(5 ≤ X ≤ 8 )Find the highest possible value for x in the set 8.2 7.7 6 4.8 8.2 5.8 9.2 7.3 6.2 8.1 5.5 and x such that the mean of these scores is 7. show complete solution
- Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviation s is within 50% of o. Is this sample size practical? To be 95% confident that s is within of the value of 6, the sample size n should be at least To be 99% confident that s is within of the value of 6, the sample size n should be at least 1% 5% 10% 20% 30% 40% 50% 19.205 768 192 48 21 12 8 1% 5% 10% 20% 30% 40% 50% 33,218 1,336 336 22 85 38 14 The minimum sample size needed is Is this sample size practical? O A. No, because the sample size should be as small as possible for most applications. O B. Yes, because the sample size is small enough to be practical for most applications. O C. Yes, because the sample size should be as large as possible for most applications. O D. No. because the sample size is excessivelv large to be practical for…Please read the following question carefully and type the solution down accordingly. 2. 2. X obeys the t-distribution with n degrees of freedom, i.e., X-t(n), n>1. Then what is the distribution for Y=. ? X²Let X-binomial( n = 11 , p) such that P(X= 8)%3D P(X= 9 ). Find the success probability p. 0.250 0.375 0.750 0.625
- For the repeated-measures t statistic,df=a. n1+n2-2 b. (n1-1)+(n2-1) c.n-1 d.n-2K Before every flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the aircraft. The aircraft can carry 41 passengers, and a flight has fuel and baggage that allows for a total passenger load of 6,765 lb. The pilot sees that the plane is full and all passengers are men. The aircraft will be overloaded if the mean weight of the passengers is greater than 6,765 lb 41 Should the pilot take any action to correct for an overloaded aircraft? Assume that weights of men are normally distributed with a mean of 183.6 lb and a standard deviation of 35.4. The probability is approximately (Round to four decimal places as needed.) ONCORPURINE MIMPIETARTUST SAMPARADE HOMENOT MANCHEIDU WARMTPARASH PRES = 165 lb. What is the probability that the aircraft is overloaded?B. Find the following probabilities using the t-table if X~t20 a. P(T > 0.860) b. P(T < - 1.325) C. Find k such that P(k< T< 2.947) = 0.845 when T~t15
