Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Find the critical value and test statistic value follows normal distribution.

1. Using z-table (Table E), find the critical value (or values) for a a = .14 right-tailed test.

A) .1406

B) 1.08

C) 0.0557

D) 1.54

2. At a certain university, the average cost of books per student was $400 per student last semester. In a sample of 40 students this semester, their average cost was $430 with a standard deviation of $80. The Dean of Students believes that the costs are greater this semester. What is the test value for the hypothesis?

1) 15.00

2) 2.37

3) 0.38

4) 0.75

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922060

Have any Question? 


Related Questions in Statistics and Probability

Ifnbsp x t is a wide sense stationary gaussian random

If  X( t) Is a wide sense stationary Gaussian random process, find the cross-correlation between X(t) and X 3 (t) in terms of the autocorrelation function

Let xt acosomegat bsinomegatnbsp where a and b are

Let X(t) = Acos(ω t )+ Bsin(ω t  ) where A and B are independent, zero-mean, identically distributed, non-Gaussian random variables. (a) Show that X(t) is WSS, but not strict sense stationary. Hint: For the latter case c ...

Problem - consider the three alternative allocations of

Problem - Consider the three alternative allocations of money (m) in an economy composed of three people, with people labeled A, B, C, and alternative allocations labeled X, Y, Z. The values in the 9 cells are the moneys ...

A player engages in the following dice tossing game craps

A player engages in the following dice tossing game ("craps"). Two dice are rolled. If the player rolls the dice such that the sum is either 7 or 11, he immediately wins the game. If the sum is 2, 3, or 12, he immediatel ...

Suppose x andnbsp ynbsp are independent and exponentially

Suppose X and  Y  are independent and exponentially distributed both with unit-mean. Consider the roots of the quadratic equation  (a) Find the probability that the roots are real. (b) Find the probability that the roots ...

What are the four main apostate acts kuraihats prohibited

What are the four main apostate acts ('Kuraihats') prohibited for a Sikh?

Q1 explain carefully the difference between an unbiased

Q1. Explain carefully the difference between an unbiased estimator and a consistent estimator. Does one imply the other? If so, show mathematically, and if not provide examples. Q2. In this question, we will use a data s ...

Letnbsp xknbspbe a sequence of iid exponential random

Let  X k  be a sequence of IID exponential random variables with mean of 1. We wish to  (a) Find a bound to the probability using Markov's inequality. (b) Find a bound to the probability using Chebyshev's inequality. (c) ...

Q1 a local school board wanted to compare test scores on

Q1) A local school board wanted to compare test scores on standardized mathematics tests for 9 th grade students in 2 different junior high schools. A random sample of 10 students from school A and a random sample of 10 ...

1 in each of the following classify the resulting data

1. In each of the following, classify the resulting data variable as qualitative or as quantitative. If quantitative, label as discrete or as continuous. a. The U.S. Census Bureau collects data on household size in the U ...

  • 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

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate