In a study of the accuracy of fast food​ drive-through orders, one restaurant had 40 orders that were not accurate among 310 orders observed. Use a0.10significance level to test the claim that the rate of inaccurate orders is equal to​ 10%. Does the accuracy rate appear to be​ acceptable? Identify the null and alternative hypotheses for this test. test statistic pvalue conclusion

Q: It stated that there is significant difference between the observed and expected data A. Alternative…

A: Hypothesis :- The statement about population conducting the study design is called as a hypothesis…

Q: If the estimated power of a significance test is 0.6, it means that

A: The power of a significance test is basically the probability of not making type 2 error. The type 2…

Q: The scores of students for a quiz are: Student A B D E F Score 37 43 29 47 36 40 (i) Find the…

A: We have given that  Let Xi denotes the scores of the students  Xi: 37, 43, 29, 47, 36, 40  We have…

Q: Develop the ability to identify the null and alternative hypotheses when given some claim about a…

A: The question is about is identification of null and alt. hypo. Introduction : Null hypo : The hypo.…

Q: Perform a one-sample  z -test for a population mean using the  P -value approach. Be sure to state…

A: Givensample size(n)=40Mean(x)=7.8standard deviation(σ)=0.5significance level(α)=0.05

Q: You randomly select 20 cars of the same model that were sold at a car dealership and determine the…

A: Answer:- Given, Sample size, n = 20  Sample mean, X¯= 9.75  Sample standard deviation, S = 2.39…

Q: n a study of the accuracy of fast food​ drive-through orders, one restaurant had 36 orders that were…

A:

Q: A researcher wants to know whether athletic women are more flexible than​ non-athletic women. For…

A: Given observation   Let 1 denotes athletic women and 2 denotes Non-Athletic Women Hypothesis Null…

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Q: of the test statistic, to obtain the P-value, and to state your conclusion. In the past, the mean…

A: Given  Population mean μ=8.2, n=40, sample mean x̄=8.4, level of significance ɑ=0.05, standard…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 37 orders that were…

A:

Q: ng to the annual CSI Computer Crime reported 55% of businesses suffered unauthorized use of computer…

A: The null and alternative hypothesis is, 0.55Ho:p=0.55 Ha: p < 0.55Ha:p<0.55 This is a…

Q: The mean factory overhead per employees in goods-producing industries is currently $4.57. Suppose a…

A: We have given that  Sample size n =25 Population mean=4.57 Sample mean =3.89 Sample standard…

Q: Using a test statistic and critical value. What is the correct decision for this test

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A: Population: The population of interest includes all the individuals of interest. The overall group…

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A: The objective of this question is to calculate the 95% and 99% confidence intervals for the average…

Q: In a study of accuracy of fast food drive throughs.  McDonalds had 27 orders that were not accurate…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: 1000 randomly selected Americans were asked if they believed the minimum wage should be raised. 600…

A: Givensample size(n)=1000x=600sample proportion(p^)=xn=6001000=0.6confidence level=95%

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Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Given,sample size(n)=2500no.of people favor of stricter gun control laws(x)=1723

Q: Perform a one-sample  z -test for a population mean using the  P -value approach. Be sure to state…

A: Given n=40,x¯=8.4,σ=0.5,μ=8.2.

Q: Perform a one-sample z-test for a population mean using the P-value approach. Be sure to state the…

A: We have given that  Sample size n = 40  Sample mean= 8.8 Population standard deviation = 0.5

Q: A data set includes data from 400 random tornadoes. The display from technology available below…

A: 19. Solution: From the given information, the claim is that the mean tornado length is greater than…

Q: In estimating the average time spent per week in doing physical exercises, a random sample of 40…

A: We have given that,  Sample mean (x̄) = 4.0, standard deviation (s) = 1.0 and sample size (n) = 40…

Q: Perform a one-sample z-test for a population mean using the P-value approach. Be sure to state the…

A: From the provided information, Sample size (n) = 40 Sample mean (x̅) = 7.2 Population standard…

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Q: Sales personnel for Skillings Distributors submit weekly reportslisting the customer contacts made…

A: It is given that sample mean is 17.5 and the standard deviation is 5.6.

Q: 700 randomly selected Americans were asked if they believed the minimum wage should be raised. 350…

A: Given that  p = 700 x = 350 Confidence level(c) = 90% = 0.90 Significance level (α) = 1-c = 1-0.90=…

Q: A recent article published by the Wall Street Journal said the Cincinnati airport had the most…

A: Given : Data on sample of 46 flights originating in cincinnati and roundup trip airfare for each…

Q: A simple random sample of 5 recently hospitalized migraine sufferers were given a new treatment; the…

A: The degrees of freedom is obtained as follows: Df=n-1    =5-1     =4 The critical-value is obtained…

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Q: In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time…

A: Answer:-

Q: Apple Computer believed that 36 percent of its smartphone customer own the most recent model of…

A: Here we conduct Z test for proportion.

Q: Intellectual development (Perry) scores were determined for 21 students in a first-year,…

A: Given data :  n = 21 Average  students  = 3.27 SD = 0.40 9% of CI

Q: College tuition: A simple random sample of 35 Colleges and universities in the united states had a…

A: Given,sample size(n)=35sample mean(x¯)=18702standard deviation(s)=10653degrees of…