Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Confidence interval for one population mean.

1. The mean of the standard normal distribution is
A. 1
B. 0
C. 100
D. all of these

2. The standard normal distribution is continuous?
A. true
B. false

3. A walker travelling at 4 miles per hour burns and average of 300 calories per hour. The standard deviation is 8 calories. Find the following for a walker that travels 4 miles in one hour.

Find the possibility that a worker burns more that 280 calories is the probability
A. 0.4938
B. 0.0062
C. 0.9938
D. 0.5062

4. Refer to the walk that burns and average of 300 calories and the standard deviation is 8 calories.
What is the probability that the walker will burn less than 293 calories?
A. 0.1894
B. 0.2106
C. 0.8106
D. 0.5000

5. What is the prospect that walker will burn 285 to 320 calories?
A. 0.9637
B. 0.4699
C. 0.4938
D. 0.0363

6. A point estimate is more likely to occur than an interval estimate
A. true
B. false

7. A study of 40 bowlers showed that there average score was 186 the standard deviation of the population is 6. Uncover the 95% confidence interval of the mean score for all bowlers.
A. (183.56, 188.44)
B. (184.0, 188.0)
C. (184.14 187.86)
D. (184.44, 187.86)

8. Data that can be classified according to colour are measured on what scale?
A. nominal
B. ordinal
C. ratio
D. interval

9. The height of president bush is an instance of a variable?
A. True
B. False

10. A university dean wants to estimate the average number of hours his part-time instructors teach per week. The standard deviation from a previous study is 2.6 hours how large of a sample is necessary if he wants to be 99% confident of finding whether the true mean differs from the sample mean by 1 hour.
A. 7
B. 19
C. 45
D. 85

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919799

Have any Question? 


Related Questions in Statistics and Probability

In minitab open the data set pulsemtw you may assume that

In Minitab, open the data set PULSE.mtw. You may assume that these 92 students are a random sample of all undergraduates. (a) Obtain a 95% confidence interval for µ F  - µ M , the extent to which average pulse rates of f ...

Consider the following game a fair die is rolled if the

Consider the following game. A fair die is rolled. If the outcome is 4, then the game ends and you win 0. If the outcome is not 4, then you have the option of either stopping the game and receiving an amount equal to tha ...

If x and y are statistically independent random variables

If X and Y are statistically independent random variables both with probability density function f(t)=e^(-t) I[0, +infinity](t) , where I is the indicator function of t. Find the probability density of the variable Z=Squ ...

Suppose that a certain college class contains 42 students

Suppose that a certain college class contains 42 students. Of these, 23 are freshmen, 28 are history majors, and 8 are neither. A student is selected at random from the class. (a) What is the probability that the student ...

Researchers investigated the issue of race and equality of

Researchers investigated the issue of race and equality of access to clinical trials. The table below shows the population distribution and the numbers of participants in clinical trials involving lung cancer. Race / eth ...

Describe the following game with incomplete information as

Describe the following game with incomplete information as an extensive-form game. There are two players N = {I, II}. Each player has three types, TI = {I 1 , I 2 , I 3 } and TII = {II 1 , II 2 , II 3 }, with common prio ...

Data were collected from three populations using a

Data were collected from three populations using a completely randomized design. The following describes the sample data: n1 = n2 = n3 =6 R1 = 55 R2 = 64 R3 = 78 Conducting a test of hypothesis to verify whether there is ...

Hypothesesh0 there is no correlation between hours walking

Hypotheses H0 There is no correlation between hours walking and weight loss. H1 There is a positive correlation between hours walking and weight. H2 There is a negative correlation between hours walking and weight loss. ...

Suppose that utility payoffs depend on decisions and states

Suppose that utility payoffs depend on decisions and states as shown in Table 1.3. Letp(θ1,),p(θ2)) denote the decision-makers subjective probability distribution over Ω = {θ1 ,θ2}. a. Suppose first that B = 35. For what ...

1 find the p valuep for the indicated hypothesis test with

1) Find the P value(P= ?) for the indicated hypothesis test with the given standardized test statistic z. Decide whether to reject Ho for the given level of significance.  Two tail test, z = 2.30, alpha = 0.01 2) Find th ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen