Problem: A school administrator claims that less than 50% of the students of the school are dissatisfied by the community cafeteria service. Test claim by using sample data obtained from a survey of 500 students of the school where 54% indicated their dissatisfaction of the community cafeteria service. Use a= 0.05

Q: What are the five steps of a test of hypothesis using the critical value approach? Explain briefly

A: The critical value approach to hypothesis testing, in this we chose a point (cutoff point) using the…

Q: If the null hypothesis is rejected at a level of significance of 5%, then in some cases, it could be…

A: We have to find the statement is true or false..

Q: What are the advantages and disadvantages ANOVA hypothesis testing?

A: ANOVA:In one factor ANOVA model only one factor is studied, that is only the effect on one factor is…

Q: True or False: If the p-value is larger than the significance level we "accept" the alternative…

A: Given that ; Here we use the hypothesis testing and p value concept to solve this problem.

Q: Use an analogy to explain a Type I error and a Type II error and discuss its significance in…

A: From the given question,

Q: A non-significant outcome means that the data do not conclusively demonstrate that the null…

A: The probability value is the probability of a result as extreme or more extreme given that the null…

Q: are the null and altenative hypotheses? OB. Hg p0.26 H p0.26 Ho p026 H p-026 Hạ: p0 26 H p0.26 t is…

A: We want to find the Z test statistic

Q: What does it mean to find significant results from a hypothesis test?

A: Two types of hypothesis :  1  :  null hypothesis 2  :  alternative hypothesis

Q: True or False: If we increase the significance level α for a test from 0.05 to 0.1, we will have a…

A: We have given that  If we increase the significance level α for a test from 0.05 to 0.1, we will…

Q: According to a recent study annual per capita consumption of milk in the United States is 21.5…

A: 1) From the provided information, The hypotheses can be constructed as: H0: µ = 21.5 H1: µ > 21.5…

Q: Report an appropriate hypothesis test and use a 5% significance level. Explain the potential error…

A: The goal of the experiment is to verify that if the four specific firing temperatures had any effect…

Q: The business college computing center wants to determine the proportion of business students who…

A: Given,n=300x=125p^=xnp^=125300=0.41667α=0.01

Q: Part II. Describing Errors Instruction. Describe and explain the typel and type Il errors for a…

A: Type I error: A type I error occurs when an experiment's null hypothesis (H0) is true yet is still…

Q: How to Minimizing Incorrect Decisions in hypothesis testing?

A: There are two cases in which an incorrect decision making in hypothesis testing occurs given as…

Q: Consider Ho: H1= 42= H3= H4 = us a. Complete the ANOVA table. Mean Sum of Critical Value / Source of…

A: We have to complete ANOVA table = ?

Q: What are important features of hypothesis testing?

A: Hypothesis testing is a crucial procedure to perform when it is expected to make inferences about a…

Q: Why is it useful to obtain the power curve for a hypothesis test?

A: Power of a test:It is the chance or the probability of correctly rejecting the null hypothesis H0…

Q: Why is the phrase “goodness of fit” used to describe the type of hypothesis test considered in this…

A:

Q: A type I error occurs when the null hypothesis is incorrectly rejected when it is true the sample…

A: In case of a statistical test, when the result of the test partially favors a certain group, then…

Q: Why do we test a null hypothesis instead of a research hypothesis

A: A hypothesis, in general, is an assumptions that is yet to be proved with sufficient pieces of…

Q: What it means to find significant results from a hypothesis test?

A: Introduction :-  To explain what it means to find significant results from a hypothesis test.

Q: What is a p-value and how is it used to make a decision about the null hypothesis? How is the…

A: 1. The p-value or the calculated probability can be defined as the probability of finding the…

Q: If the p-value is more than the declared significance level for the hypothesis test, what is the…

A: First talk about p value and level of significance. The p value is the level of marginal…

Q: A marketing survey involves product recognition in New York and California. Of 30 New Yorkers…

A: p1 = 30/204 = 0.1471 p2 = 94/297 = 0.3165   Level of significance = 0.06

Q: If the significance level is α = 2% and p-value = 0.007, what is the conclusion? fail to reject the…

A:

Q: Statistics Question

A: We have to find level of confidence.

Q: Explain the step-by-step procedure for the current hypothesis test.

A:

Q: Let’s explore how changing the sample size while fixing all of the other parameters in the…

A: It is given that sample size (n) is 1,000 and hypothesized proportion value p is 0.82.

Q: Q1) Which of the following correctly describe the acceptance region for the null hypothesis? Please…

A:

Q: true or false: If the p value of a statistical test is greater than 90% then this would support…

A: p-value: In general, the p-value is also called as probability value. The p-value is the probability…

Q: a) Answer true or false and explain your answer: If it is important not to reject a true null…

A: The hypothesis: Null hypothesis: Which holds the equality. Vs Alternative hypothesis: The hypothesis…

Q: If you have do not have enough evidence to reject the null hypothesis at the 5% significance level…

A: We have given that  Do not have enough evidence to reject the null hypothesis H0 at the 5% level of…

Q: er per population for people 25 years age. 5 124 99 134 121 110 116 113 96 116 116 135 96 sample of…

A: From the data given   There is no difference in rate of Hay fever 0"…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.