An auditor claims that 10 % of customers , ledger account are carrying mistakes of posting and balancing . A random sample of 600 was taken to test the accuracy of posting and balancing and 45 mistakes were found. Are these sample results consistent with the claim of auditor ? Use 5 % level of significance.

Q: ignificance is referred to as "independent of observations". Explain this assumption.

A: The assumption of independence is used for T tests, in ANOVA tests, and in several other statistical…

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A:

Q: How does Turkey’s HSD test for multiple comparisons can be used?

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A: In given problem, a DNP student obtains a pretest at the beginning of class and immediately after…

Q: For a particular value of a predictor variable, is there a difference between the predicted value of…

A: Introduction: Suppose the population regression equation for a simple linear regression model of the…

Q: The Ipsos survey found that Conservative party voters were willing to spend the least amount in…

A: Introduction: Since the researchers wish to know if the income level of a person explains the amount…

Q: What does an extreme value at the high end of the data set mean?

A: The numerical data can be divided into two parts. One being discrete and other continuous. As the…

Q: requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05…

A: a. The proportion of commercial trucks violating laws requiring front license is, Thus, the…

Q: What is the value of the standardized test​ statistic?

A:

Q: How may we enhance confidence in a point estimate?

A: We know that, if the sample size (n) tends to infinity then sample statistic tends to population…

Q: Determine whether to use the formula for correlated comparisons or independent-groups comparisons?

A: Two samples are said to be independent if the sample values selected from one population are not…

Q: Why do we want to avoid bias when collecting data?

A: Bias : It is any trend or deviation from the truth in data collection, data analysis, interpretation…

Q: What is the lowest measure of central tendency and is used primarily for nominal data to identify…

A: We know there are mainly three measures of central tendency:Mean, mode and medianWe first know where…

Q: Why do we have to determine the mean, median, and mode of group data in research? What are its…

A: The central value is taken as a representative of the entire data. This is called a measure of…

Q: A company surveyed adult Americans about their consumer debt. The article reported that 48% of…

A:

Q: Give an example to explain how multiple comparisons leads to an escalation of type 1 error.

A: Type I error: Type-I error is rejecting the null hypothesis H0, when the null hypothesis H0 is…

Q: A teen violence prevention program is providing mentorship to youth who report interpersonal…

A:

Q: Explain the difference in how VAR Models are used in performing forecasting and how they are used in…

A: The difference in how VAR Models are used in performing forecasting and how they are used in…

Q: Why is it important to make sure that the measures you use in your research projects are valid an…

A: The objective of this question is to understand the importance of validity and reliability in…

Q: xplain the relation between error margin, confidence level, confidence interval and error term.…

A: The formula for 100(1-α)% confidence interval for population parameter is,   Here, CI: Confidence…

Q: Males under the age of 25 must pay far higher auto insurance premiums than females in this age…

A: Let SD be Statistical Discrimination

Q: What is the difference between an influential point and an outlier?

A: Outliers: Data points that diverge in a large way from the overall pattern are called outliers. A…

Q: more than 50% Australians would download COVIDSafe app? Check the condition and test at 5% level.

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Q: Addmissions officer sampled 124 entering freshmen and found that 35 of them scored less than 530 on…

A: According to the provided information, x=35 n=124

Q: Explain the Flow chart for one-factor ANOVA.

A: A one way ANOVA refers to the Analysis of Variance. A one way ANOVA is used to test the equality of…

Q: AnnArbor_Rental. Real Estate investment in college towns continues to promise good returns (The Wall…

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A: From the above given data the following solution is provided below

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A: Random sample of 50 high school seniors  Random sample of 50 seniors from the colleges in his county…

Q: Write a review on "Dealing with Missing data and Outliers". Do include relevant definition, method…

A: Missing data occur when the values of observation are not known for a variable. This can be observed…

Q: What are the similarities and differences of statistical inference of single mean as compared to a…

A: Generally, in the testing of a single population mean the distribution of a particular test for the…

Q: Why does the analysis of paired samples differ from other two population comparisons we've done…

A: Let  be the population mean the difference between February and May month. Given that,Sample size…

Q: What size sample should be obtained to be 95% confident that the sample proportion will not differ…

A: Suppose p is the true population proportion.

Q: Having outliers in our data may affect the IQR but the sample range is unchanged True False

A: The sample range is defined as Range = Max - min. And the IQR is calculated as IQR = Q3 - Q1