Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t2, (b) find the critical value z12, or (c) state that neither 40- the normal distribution nor the t distribution applies. 30- The confidence level is 99%, o is not known, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. 20- 10- 4000 8000 12000 1600 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. t4/2= (Round to two decimal places as needed.) O B. Zu/2= (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies. kouonbeig

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t2, (b) find the critical value z12, or (c) state that neither 40- the normal distribution nor the t distribution applies. 30- The confidence level is 99%, o is not known, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. 20- 10- 4000 8000 12000 1600 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. t4/2= (Round to two decimal places as needed.) O B. Zu/2= (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies. kouonbeig

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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25
Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2, (b) find the critical value z 12, 0r (c) state that neither the normal distribution 40- nor the t distribution applies. 30- The confidence level is 99%, o is not known, and the histogram of 57 player salaries (in thousands of dollars) of football players on a team is as shown. 20- 10- 4000 8000 12000 16000 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. ta/2 = (Round to two decimal places as needed.) O B. Za/2 = (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies. kɔuənbəj-
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 z/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 62 player salaries (in thousands of dollars) of football players on a team is as shown.
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value tα/2, (b) find the critical value zα/2, or (c) state that neither the normal distribution nor the t distribution applies. The confidence level is 95%, σ is not known, and the histogram of 59 player salaries (in thousands of dollars) of football players on a team is as shown. 040008000120001600020000010203040Salary (thousands of dollars)Frequency A histogram has a horizontal axis labeled "Salary (thousands of dollars)" from below 0 to above 20000 in increments of 2000 and a vertical axis labeled "Frequency" from 0 to 40 in increments of 10. The histogram contains vertical bars of width 2000, where one vertical bar is centered over each of the horizontal axis tick marks. The heights of the vertical bars are as follows, where the salary is listed first and the height is listed second: 0, 34; 2000, 12; 4000,…
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 Za/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n=287, x= 29.9 hg, s= 6.8 hg. The confidence level is 90%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ta/2= OB. (Round to two decimal places as needed.) Zα/2 (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies.
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value tα/2, (b) find the critical value zα/2, or (c) state that neither the normal distribution nor the t distribution applies.The confidence level is 99%, σ is not known, and the histogram of 63 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. A.tα/2=_(Round to two decimal places as needed.) B.zα/2=_(Round to two decimal places as needed.) C.Neither the normal distribution nor the t distribution applies
A consumer agency randomly selected 1700 flights for two major airlines, A and B. The following table gives the two-way classification of these flights based on airline and arrival time. Note that ”less than 30 minutes late” includes flights that arrived early or on time. Less Than 30 Minutes Late 30 Minutes to 1 Hour Late More Than 1 Hour Late Airline A 418 392 94 Airline B 389 324 83 If one flight is selected at random from these 1700 flights, find the following probability: P(more than 1 hour late or on airline A)= Enter your answer in accordance to the question statement (Round your answer to 4 decimal places.)
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2. (b) find the critical value z/2, or (c) state that neither the normal distribution nor the t distribution applies. 30- The confidence level 99%, a is not known, and the histogram of 54 player salaries (in thousands of dollars) of football players on a team is as shown. 20- 10- 0- O 4000 8000 12000 1600 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A t4/2= (Round to two decimal places as needed.) Za12= (Round to two decimal places as needed.) OB. OC. Neither the normal distribution nor the t distribution applies.
Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t,/2, (b) find the critical value z,12, or (c) state that neither the normal distribution nor the t distribution applies. 40- The confidence level is 95%, o is not known, and the histogram of 58 player salaries (in thousands of dollars) of football players on a team is as shown. 30- 20- 10- 4000 8000 1200 1600 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. ta/2= (Round to two decimal places as needed.) OB. Za/2 = (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies. houanbo
F 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 applies. The confidence level is 90%, o is not known, and the histogram of 65 player salaries (in thousands of dollars) of football players on a team is as shown. UA. ta/2 O B. (Round to two decimal places as needed.) Za/2= (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies. 40- 30- 20- 0- 0 4000 8000 12000 16000 20000 Salary (thousands of dollars) Q Q 4