Executives of a supermarket chain are interested in the amount of timethat customers spend in the stores during shopping trips. The meanshopping time, µ, spent by customers at the supermarkets has beenreported to be 40 minutes, but executives hire a statistical consultant andask her to determine whether it can be concluded that u is less than 40minutes.To perform her statistical test, the consultant collects a random sampleof shopping times at the supermarkets. She computes the mean ofthese times to be 34 minutes and the standard deviation of the times tobe 10 minutes.Based on this information, answer the questions below. What are the null hypothesis (H) and the alternative hypothesis (H ,) that should be used for the test?|Ho: µ is (??|H:H is (?圖?00In the context of this test, what is a Type II error?A Type II error is ?the hypothesis that u iswhen, in fact,µ is (?Suppose that the consultant decides not to reject the null hypothesis. What sort of error might she bemaking? (?回国

Given: Sample mean, M = 34 Sample standard deviation, S = 10 The assumed…

What are the null hypothesis (H,) and the alternative hypothesis (H) that should be used for the test? H: u is ? H:u is (? In the context of this test, what is a Type II error? A Type II error is (? when, in fact, u is (? the hypothesis that u is ? Suppose that the consultant decides not to reject the null hypothesis. What sort of error might she be making? ?

What are the null hypothesis (H,) and the alternative hypothesis (H) that should be used for the test? H: u is ? H:u is (? In the context of this test, what is a Type II error? A Type II error is (? when, in fact, u is (? the hypothesis that u is ? Suppose that the consultant decides not to reject the null hypothesis. What sort of error might she be making? ?

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

Related questions

Q: A Type 2 mistake arises in hypothesis testing when a. When the alternative hypothesis is true, the…

A: Solution A type 2 error is occurd when null hypothesis is not rejected when it is not true.

Q: In a given hypothesis test, the null hypothesis cannot be rejected at the 0.005 and the 0.01 level…

Q: Failing to reject the null hypothesis when it is false is

A: We need to use the concept of Hypothesis testing

Q: If we reject the null hypothesis, does this mean that we have proved it to be false beyond all…

A: The type I error is rejecting the null hypothesis when it is true. So, if we reject the null…

Q: Identify the type I error and the type II error that corresponds to the given null hypothesis for a…

A: Type I error (α): The probability of rejecting the null hypothesis when it is actually true is…

Q: A decision to reject the null hypothesis means you have demonstrated that the treatment has no…

A: Given problem Given that A decision to reject the null hypothesis means you have demonstrated…

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact true. a. Is it possible to make a…

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II…

Q: It is hypothesized that in the fall semester students do better on math tests than in the spring.…

A: We have to find corrcet answer..

Q: What are the two decisions that you can make from performing a hypothesis test? What are the two…

A: 56. In the performing a hypothesis test There are two decisions. Decisions: If p-value≤ α Then…

Q: What are the correct hypotheses for this test? The null hypothesis is Ho The alternative hypothesis…

A: Given : the manager conclude that the standard deviation has decreased at the 0.05 level of…

Q: If a null hypothesis is rejected at the 0.05 level of significance, it must be rejected at the 0.01…

A: Statement: " If a null hypothesis is rejected at the 0.05 level of significance, it must be rejected…

Q: A retrigerator manufacturer claims that the mean life of its refrigerators is greater than 18 years.…

A: (a) H0 : ? ≤18 Ha : ? >18

Q: Determine whether the claim stated below represents the null hypothesis or the alternative…

A: From the provided information, Since, the claim is a statement of equality, it represents the null…

Q: The chairperson of a psychology department suspects that some of her faculty are more popular with…

A: Null Hypothesis: All professors are equally popular

Q: The currently used medicine is successful for 26% of patients. A new experimental medication is…

A: sample size(n)=500no.of patients successful for new experimental medication (X)=140sample proportion…

Q: No error is committed when the null hypothesis is rejected when it is false. True False

A: In hypothesis testing, type I error is the incorrect rejection of the null hypothesis when the null…

Q: 40. The average amount of money lost by a casino patron is below $500. Determine if the hypothesis…

A: Given, Let X be the amount of money lost by a casino patron μx<500

Q: What are the null hypothesis (H) and the alternative hypothesis (H) that should be used for the…

A: Given that mean SI score for the population of all smokers is 90. Test is that whether the value of…

Q: (C) Referring to your answer in part b, what conclusion should be reached with respect to the null…

A: B) It is given that the significance level is 0.025.

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact false. a. Is it possible to make…

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II…

Q: Should you reject or fail to reject the null hypothesis? O Reject the null hypothesis O Fail to…

A: The table shows the number of friends for 3 kindergarteners up to 2nd grade.

Q: In what type of practical scenario should we carry out a test of the following null hypothesis? Ho :…

A: Hypothesis testing is a type of inferential statistics that enables to make inferences about a whole…

Q: When is there a risk of a Type I error

A: The type I error is defined as rejecting the null hypothesis H0 when actually it is true.

Q: What are the correct hypotheses for this test? The null hypothesis is Ho: The alternative hypothesis…

A: S.D is 5% we need to provide the null and the alternate hypothesis

Q: a. Is it possible to make a Type I error? Explain your answer. b. Is it possible to make a Type II…

A: a. Is it possible to make a Type I error? Answer:Option C) is correctYes, it is possible. A Type…

Q: What are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the…

A: Given Population Mean, μ=136 Sample Mean, x=130 Sample sd, s=15

Q: The researcher was interested in examining whether there was a significant difference between (a)…

A: A Hypothesis is an assertion (or) statement about the population parameter θ The following are the…

Q: Below is a hypothesis test set up by a student who recently took introductory statistics: Họ: x = 5…

A: If sample mean = 4.2 and population mean = 5 This means , alternative hypothesis should be Ha: x…

Q: A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed,…

A: Given Null and alternative hypothesis are Ho: p≥0.2 Ha: p<0.2

Q: When conducting a hypothesis test, we hope to avoid commiting a type 1 error, which is: 1. Not as…

A: We know that when we are going to test hypothesis their can be two types of errors happens. 1. type…

Q: hich of the following is the value necessary for rejection (or nonacceptance) of the null…

A: The critical value represents the region where the test statistic is unlikely to fall/occur.

Q: An investigator wishes to determine whether Stanley Kaplan significantly increases SAT scores. From…

A: The test is to check whether Stanley Kaplan significantly increases SAT scores.

Q: Consider the following statements: (i) If a researcher fails to reject the null hypothesis, then…

A: 1. If a researcher fails to reject the null hypothesis, then the alternative hypothesis should be…

Q: When is a researcher at risk of making a Type II error? a. whenever H1 is rejected b.…

A: Type II error is also known as "consumer's risk" is defined as the probability of accepting the null…

Q: What are the null hypothesis (H) and the alternative hypothesis (H,) that should be used fo test?…

A: mu =38 xbar = 44 s =10

Q: The null hypothesis for this test would be: b) The alternative hypothesis? c) What is the value of…

Q: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the…

Q: For the given hypothesis test, explain the meaning of the kind of error, as requested. A statistics…

Q: What does failing to reject a null hypothesis imply?

A: Given, What does failing to reject a null hypothesis imply?

Q: A change is made that should improve student satisfaction with the parking situation at your school.…

A: Given that A change is made that should improve student satisfaction with the parking situation at…

Q: What are the null hypothesis (H,) and the alternative hypothesis (H, ) that should be used for the…

A: Solution:

Q: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the…

A: The hypotheses of the test will be- H0:μ is equal to 7.5H1:μ is not equal to 7.5 A Type-I error is…

Q: What is the observed test statistic for this test?

Q: What are the two decisions that you can make from performing a hypothesis test? What are the two…

A: In any hypothesis test we have 1) Null hypothesis2) Alternate hypothesis Comparing the p value and…

Q: uppose you want to test the claim that u, <42. Two samples are randomly selected from each…

Q: What are the two decisions that you can make from performing a hypothesis test? ..... What are the…

Q: It is a hypothesis which is tested for the purpose of rejection under the assumption that it is…

A: Solution :-

Q: When a researcher conducts an experiment and fails to find significant results, what should she…

A: According to the provided information, The researcher conducts an experiment and fails to find…

Q: If you fail to reject the null hypothesis when it is, in fact, false; what type of error is this…

A: In statistical hypothesis testing, we have two types of errors. 1. Type I error 2. Type II error

Q: If we reject the null hypothesis, does this mean that we have proved it to be false beyond all…

A: There is always a type 1 error when null hypothesis is rejected.

Question

Executives of a supermarket chain are interested in the amount of time
that customers spend in the stores during shopping trips. The mean
shopping time, µ, spent by customers at the supermarkets has been
reported to be 40 minutes, but executives hire a statistical consultant and
ask her to determine whether it can be concluded that u is less than 40
minutes.
To perform her statistical test, the consultant collects a random sample
of shopping times at the supermarkets. She computes the mean of
these times to be 34 minutes and the standard deviation of the times to
be 10 minutes.
Based on this information, answer the questions below.

What are the null hypothesis (H) and the alternative hypothesis (H ,) that should be used for the test?
|Ho: µ is (?
?
|H:H is (?
圖
?
00
In the context of this test, what is a Type II error?
A Type II error is ?
the hypothesis that u is
when, in fact,µ is (?
Suppose that the consultant decides not to reject the null hypothesis. What sort of error might she be
making? (?
回国

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Non-parametric Tests$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc