QuestionAssume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the criticalvalue ta/2. (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distribution40applies.30The confidence level is 90%, o is not known, and the histogram of 57 player salaries (in thousands of dollars) offootball players on a team is as shown.20-10-4000 8000 12000 16000 20Salary (theusands of dellars)Select the corect choice below and, if necessary, fill in the answer box to complete your choice.OA la12=(Round to two decimal places as needed.)OB.Za/2(Round to two decimal places as needed.)OC Neither the nomal distribution nor thet distribution applies.Click to select and enter your answerts)9MB#2$&3568.9-

Given: σ is unknown. α=0.1 n=57 Since the σ is unknown, it is appropriate to use t distribution. The…

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value ta/2, (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distribution 40 30 applies. 20- The confidence level is 90%, o is not known, and the histogram of 57 player salaries (in thousands of dollars) of football players on a team is as shown. 10- 4000 8000 12000 16000 20 Salary (thausands of de) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA la12= (Round to two decimal places as needed.) OB 2/2- (Round to two decimal places as needed.) OC Neither the nomal distribution nor the t distribution applies Click to slect and enter your answer(s) Frequency

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value ta/2, (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distribution 40 30 applies. 20- The confidence level is 90%, o is not known, and the histogram of 57 player salaries (in thousands of dollars) of football players on a team is as shown. 10- 4000 8000 12000 16000 20 Salary (thausands of de) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA la12= (Round to two decimal places as needed.) OB 2/2- (Round to two decimal places as needed.) OC Neither the nomal distribution nor the t distribution applies Click to slect and enter your answer(s) Frequency

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 25. (Round your answer to three decimal places.)
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to/2, (b) find the critical value Zu/2, or (c) state that neither the normal distribution nor the t distribution applies. The confidence level is 95%, o is not known, and the histogram of 64 player salaries (in thousands of dollars) of football players on a team is as shown. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. /2² (Round to two decimal places as needed.) OB. Z/2 = (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies. ← Frequency 40- 30- 20- 10- ó 4000 8000 12000 16000 20000 Salary (thousands of dollars) G
A researcher is interested in studying the use of hypnosis to relieve pain. She took a random sample of 16 subjects and measured their sensory ratings. The mean of the sensory ratings was found to be 7.5 and standard deviation to be 2.3. It is known that the sensory ratings are normally distributed. Construct a 99% confidence interval for the mean sensory ratings of the population. a) (5.81, 9.19) b) (6.27, 8.73) c) (6.36, 8.64) d) (6.02, 8.98)
The Pizza Shop wanted to determine what proportion of its customers ordered only cheese pizza. Out of 80 customers surveyed, 15 ordered cheese pizza. They want a 99% confidence interval of the true proportion of customers who order only cheese pizza. Which type of confidence interval should we use here? a confidence interval for the mean using a table value from the standard normal distribution. a confidence interval for the mean using a table value from the t distribution. a confidence interval for a proportion using a table value from the standard normal distribution. a confidence interval for proportion using a table value from the t distribution.
If n=-22, (x-bar)=50, and s-6, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.
Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 17. (Round your answer to three decimal places.)
The manager of a fleet of automobiles is testing two brands of radial tires and assigns one tire of each brand at random to the two rear wheels of eight cars and runs the cars until the tires wear out. The data (in kilometers) follow. Find a 99% confidence interval on the difference in the mean life. Car Brand 1 Brand 2 1 36,925 34,318 2 45,300 42,280 3 36,256 35.548 4 32,100 31,950 5 37,210 38,015 6 48,360 47,800 7 38.200 37,810 8 33,500 33,215 Round your answer to 2 decimal places. Do not use commas.
Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 25. (Round your answer to three decimal places.)
Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 3. (Round your answer to three decimal places.)
If N = 25, ?̅= 135, s = 24 and assuming that the population is normally distributed,construct a 95% confidence interval estimate for the population mean.
Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 29. (Round your answer to three decimal places.)
The interval [40 50] represents a 90% confidence interval for a population mean. Which of the following is most likely to be the corresponding 95% confidence interval? (Hint: in a normal distribution, close to 90% of the values are within 1.65 standard deviations of the mean and close to 95% of the values are within 2 standard deviations of the mean) O A. [42 48] В. [36 54] OC. [40 54] D. [30 60]