A relay microchip in a telecommunications selite sa le expectancy that follows a normal distribution with a mean of months and a standard deviation of mois. When the computer relay microche malfunctions, the entire satelite is useless. A large London wrance company is going to insure the satellite for 30 million dollars. Assume that the only part of the well in gretion is the microchip All other components will work indefinitely (a) for how many months should the satelite bered to be confident that it will beyond the insurance date? Round your answer to the nearest month) months () if the satelite is insured for 84 months, what is the probability that it wil malfunction before the insurance coverage ends? (Round your answer to four decimal places.) (c) If the satelite issured for 84 months, what is the expected loss to the insurance company?(round your awwer to the nearest dollar) (d) If the insurance company changes $3 million for 84 months of insurance, how much profit does the company expect to make? (Round your answer to the west dollar) MY NOTES ASK YOUR TEACHER 19. 1-/2.77 Points DETAILS BBUNDERSTAT126.5.004. Describe how the variability of the distribution changes as the sample size increases As the sample size increases the variability decreases As the sample size increases, the variability stays the same As the sample size increases, the variability increases It can be determined Suppose x has a distribution with a mean of 90 and a standard deviation of 36. Random samples of size n-64 are drawn. (a) Describe the x distribution and compute the mean and standard deviation of the distribution x has Select w distribution with mean "x" and standard deviation - (b) Find the z value corresponding to x - 99. (c) Find PCX 5 and ng > 5 are satisfied in this problem? Explain why this would be an important consideration. O No, the conditions are not satisfied. This is important because it allows us to say that is approximately normal. Yes, the conditions are satisfied. This is important because it allows us to say that is approximately binomial. O No, the conditions are not satisfied. This is important because it allows us to say that is approximately binomial. Yes, the conditions are satisfied. This is important because it allows us to say that is approximately normal. 30. [-/2.77 Points] DETAILS BBUNDERSTAT12 8.1.001. Briefly answer the following questions. (a) What is a null hypothesis Ho? O A working hypothesis making a claim about the population parameter in question. O Any hypothesis that differs from the original claim being made. A specific hypothesis where the claim is that the population parameter does not equal o. O A specific hypothesis where the claim is that the population parameter is equal to 0. (b) What is an alternate hypothesis H,? A specific hypothesis where the claim is that the population parameter does not equal o. Any hypothesis that differs from the original claim being made. O A specific hypothesis where the claim is that the population parameter is equal to 0. O A working hypothesis making a claim about the population parameter in question. (c) What is a type I error? O Type I error is rejecting the null hypothesis when it is false. Type I error is failing to reject the null hypothesis when it is false. Type I error is rejecting the null hypothesis when it is true. Type I error is failing to reject the null hypothesis when it is true. What is a type II error? Type II error is rejecting the null hypothesis when it is false. Type II error is failing to reject the null hypothesis when it is false. O Type II error is rejecting the null hypothesis when it is true. Type II error is failing to reject the null hypothesis when it is true. (d) What is the level of significance of a test? The probability of a type I error. The probability of a type II error. What is the probability of a type II error? O 1-a O 1-B A relay microchip in a telecommunications selite sa le expectancy that follows a normal distribution with a mean of months and a standard deviation of mois. When the computer relay microche malfunctions, the entire satelite is useless. A large London wrance company is going to insure the satellite for 30 million dollars. Assume that the only part of the well in gretion is the microchip All other components will work indefinitely (a) for how many months should the satelite bered to be confident that it will beyond the insurance date? Round your answer to the nearest month) months () if the satelite is insured for 84 months, what is the probability that it wil malfunction before the insurance coverage ends? (Round your answer to four decimal places.) (c) If the satelite issured for 84 months, what is the expected loss to the insurance company?(round your awwer to the nearest dollar) (d) If the insurance company changes $3 million for 84 months of insurance, how much profit does the company expect to make? (Round your answer to the west dollar) MY NOTES ASK YOUR TEACHER 19. 1-/2.77 Points DETAILS BBUNDERSTAT126.5.004. Describe how the variability of the distribution changes as the sample size increases As the sample size increases the variability decreases As the sample size increases, the variability stays the same As the sample size increases, the variability increases It can be determined Suppose x has a distribution with a mean of 90 and a standard deviation of 36. Random samples of size n-64 are drawn. (a) Describe the x distribution and compute the mean and standard deviation of the distribution x has Select w distribution with mean "x" and standard deviation - (b) Find the z value corresponding to x - 99. (c) Find PCX 5 and ng > 5 are satisfied in this problem? Explain why this would be an important consideration. O No, the conditions are not satisfied. This is important because it allows us to say that is approximately normal. Yes, the conditions are satisfied. This is important because it allows us to say that is approximately binomial. O No, the conditions are not satisfied. This is important because it allows us to say that is approximately binomial. Yes, the conditions are satisfied. This is important because it allows us to say that is approximately normal. 30. [-/2.77 Points] DETAILS BBUNDERSTAT12 8.1.001. Briefly answer the following questions. (a) What is a null hypothesis Ho? O A working hypothesis making a claim about the population parameter in question. O Any hypothesis that differs from the original claim being made. A specific hypothesis where the claim is that the population parameter does not equal o. O A specific hypothesis where the claim is that the population parameter is equal to 0. (b) What is an alternate hypothesis H,? A specific hypothesis where the claim is that the population parameter does not equal o. Any hypothesis that differs from the original claim being made. O A specific hypothesis where the claim is that the population parameter is equal to 0. O A working hypothesis making a claim about the population parameter in question. (c) What is a type I error? O Type I error is rejecting the null hypothesis when it is false. Type I error is failing to reject the null hypothesis when it is false. Type I error is rejecting the null hypothesis when it is true. Type I error is failing to reject the null hypothesis when it is true. What is a type II error? Type II error is rejecting the null hypothesis when it is false. Type II error is failing to reject the null hypothesis when it is false. O Type II error is rejecting the null hypothesis when it is true. Type II error is failing to reject the null hypothesis when it is true. (d) What is the level of significance of a test? The probability of a type I error. The probability of a type II error. What is the probability of a type II error? O 1-a O 1-B
