Question
  1. Indicate which of the following hypotheses are one or two tailed and if one tailed, indicate which side of the graph the tail would be found:
    a. Having a pet reduces high blood pressure
    b. Giving people more office space will modify their work habits
    c.  People who are taller make more money
    d. Drinking coffee will affect a person heart rate

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Solve and give step by step solution?

A: a)  Let's draw the scatter plot for the given data sets using the excel.      

Q: In any given year a factory has a 20% probability of having an accident about every how many years m...

A: According to the provided information: p=0.20  

Q: Statistics Question

A: I will use the "1-Var stats" command in the TI-84 calculator. Follow the snapshots given below. ...

Q: Confidence Interval for One Population Mean In 1903, a paper published by Abigail Camp Dimon, discus...

A: Click to see the answer

Q: If the random variable X is uniformly distributed between 40 and 50, then P(35≤X≤45) is?

A: Click to see the answer

Q: 11.5.19 If you are dealt 5cards from a shuffled deck of 52​ cards, find the probability of getting t...

A: 11.5.19

Q: Part A)Which of the following statements about confidence intervals is/are correct? A confidence in...

A: The confidence interval is used indicate the  reliability of an estimate. Hence, both statements are...

Q: Find p(A or B)  P(A)= 0.54, P(B)= 0.42, and P(A and B)=0.25

A: Let A, B are two events. The known probabilities are, P(A)= 0.54, P(B)= 0.42,  P(A and B)=0.25  

Q: There is popular belief that herbal remedies such as Ginkgo Biloba and Ginseng may improve learning ...

A:  Based on the null hypothesis the herb has no effect on memory scores.H0: μ = 80 (even with the herb...

Q: Round off your two decemal places

A: Class interval frequency, f mid point, m fm m-x m-x2 f(m-x)2 10-15 6 12.5 75 -13.2 174.24 1045.44 ...

Q: Could you please solve exercise 3_3 a,b

A: Chebyshev’s inequality: When the distribution of the population is not known. That is, when there is...

Q: Three randomly selected households are surveyed. The numbers of people in the households are 3​, 4​,...

A: Sample variances: The following table lists the possible samples with replacement, from the three gi...

Q: 

A: Here, The data of number of participants and number of sleep hours of each participants are given. W...

Q: A woman is told that her weight has a standard score (\\( z \\)‑score) of \\( −1.5 . \\) This means ...

A: Suppose, population mean is μ and standard deviation is σ. Then, the formula of Z-score is as follow...

Q: Dr. Smith found a Pearson correlation of +.72 between class attendance and exam scores. To better un...

A: rs=1-6∑idi2nn2-1

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from...

A: Click to see the answer

Q: Express the confidence interval (0.050,0.112)in the form of p−E<p<p+E.

A: From the given information, the confidence interval is (0.050, 0.112) p = (Upper bound + lower bound...

Q: A normal population has a mean of 55 and a standard deviation of 14. You select a random sample of 2...

A: From the provided information, Mean (µ) = 55 Standard deviation (σ) = 14 Let X be a random variable ...

Q: You took a 5-question multiple choice quiz with 4 choices for each question.  If you guess at random...

A: Given information- A student takes a multiple-choice test that has 5 questions. Each question has fo...

Q: In at least 6 sentences discuss what happens to the confidence interval when the level of confidence...

A: Answer 1: The confidence interval can be calculated as: Confidence Interval=X±z×σn Here, X= Sample m...

Q: 4. Describe what happens to the mean, the standard deviation, and the shape of a distribution when a...

A: Click to see the answer

Q: QI. For given data A: 16,17, 25, 26, 32, 34, 38, 40, 42, B: 14,16,24,28, 32, 35, 37, 42, 43, 45, 47 ...

A: Since you have asked multiple question, we will solve the first question for you. If youwant any spe...

Q: The following table give the no. of good and defective parts produced by each of these shifts in a f...

A: Null hypothesis: H0: Shift has no association with good and defective parts. Alternative hypothesis:...

Q: 11.6.29    Question Help     You are dealt one card from a​ 52-card deck. Find the probabili...

A: Click to see the answer

Q: A machine that cuts corks for wine bottles operates in such a way that the distribution of the diame...

A: Mean µ = 4 cm Standard deviation σ = 0.1 cm The specification of the corks will be defective if P(X&...

Q: 11.6.39    Question Help     In a class of 40​students, 23 are​ Democrats, 7 are business​ m...

A: Given Information: In a class of 40 ​students, 23 are​ Democrats, 7 are business​ majors, and 6 of t...

Q: Given a normal distribution with mean of 40 and standard deviation of 5, find the x value that has 4...

A: The mean is 50 and the standard deviation is 5.

Q: Suppose that on a 100-point test, the teacher's goal is for her students' exam scores to have a stan...

A: Solution: Given information n= 25 Sample size σ= 8  poins Population Standard deviationss= 9.5 point...

Q: Indicate which of the following hypotheses are one or two tailed and if one tailed, , indicate which...

A: Concept: The null hypothesis can be defined as the hypothesis of no difference or equality, while th...

Q: The result for “Smoking makes me look older? Was F(1,517) = 17.02, p <0.001. Using this result, i...

A: It is given that F(1,517) = 17.02. That is, the degrees of freedom for between sum of square is 1 An...

Q: B12. (Excel: Calculating means, standard deviations, covariance, and correlation) Given the probabil...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: A random sample of 110 high school graduates from Fremd High School was surveyed to find out if they...

A: Note: Hi there! Thank you for posting the questions. As there are multiple sub parts, according to o...

Q: If P(A) = 0.45, P(B) = 0.55, and P(AUB) = 0.78, then P(A|B) =

A: Click to see the answer

Q: Do parts  a nd b

A: We can easily find Mean and Standard deviation for face to face and Virtual learning by using MS-Exc...

Q: A delivery truck travels from point A to point B and back using the same route each day. There are f...

A: (a) The marginal distribution of Y is  y 0 1 2 3 4 P(Y=y) 0.13 0.21 0.31 0.23 0.12 For the ...

Q: A data set includes data from 500 random tornadoes. The display from technology available below resu...

A: Click to see the answer

Q: Professor Tom knows that the mean score on the midterm exam from all the years he has been teaching ...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: You are conducting a test of homogeneity for the claim that two different populations have the same ...

A: Denote oij as the observed frequency for ith row and jth column (i =1, 2; j =1, 2) and eij as the ex...

Q: The length of a fully grown hibiscus plant has a mean 35cm. It is found that 5% of these plants are ...

A: Click to see the answer

Q: please do parts A and B!! question/description is attached below

A: a)  p = 0.05 n = 60 N = 22000 np = 60(0.05)      = 3.0 n(1 - p) = 60(1 - 0.05)              = 57 10n...

Q: Out of the 30 college students who visited campus health center yesterday, 9 receieved prescriptions...

A: Click to see the answer

Q: A research cOmpany desires to i meat consumption was 4.3 pounds. Assume that the population standard...

A: Given : Mean ()=4.3 Ponds            Standard deviation ()=0.8 Ponds            alpha =1-0.95=0.05,n...

Q: Graeter’s is thinking about expanding its ice cream flavors. They have created three new flavors of ...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: The level of significance alpha most commonly used are: 0.01, 0.05, 0.1. True/False

A: Level of significance is the probability of rejecting null hypothesis when it is true.  Here the sta...

Q: What is the standard deviation of a sample of 120 observations, if the variance of the sample 2.56?

A: It is given that the variance of the sample is 2.56.

Q: Answer the following question. Use a calculator if needed.

A: Given :                            For small bottles Mean(μ)=338,standard deviation σ=3             ...

Q: A professor using an open source introductory statistics book predicts that 10% of the students will...

A: a) The hypotheses are H0:pbuy=0.10, pprint=0.55, pread = 0.35  H1: Atleast one of the claimed probab...