What statistical test should she use to analyze the data?

Q: To test the intelligence of 10th class boys and girls in a Higher Secondary School, a sample of 83…

A: We have given that  Sample size n1=95 , n2=83 Sample mean xbar1 =29.91  xbar2 =40.92 Standard…

Q: What is the Sample Skewness for the following numbers: mean of 101.67 , median of 95, and standard…

A: It is given that  Mean = 101.67 Median = 95 Standard deviation = 55.89

Q: A survey was conducted to determine the number of hours homemakers spent on television programs per…

A: The mean for town A is 33.9.  So that is the average number of hours spent watching television is…

Q: ou are provided with a sample of sales volumes of few cities and is required to test whether the…

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Q: Illustrates the effect of  significance level on the power of a two-sample t test?

A: Power of a hypothesis test: The probability of not committing a Type II error is called the power of…

Q: THe following tbale shows bunned dtat for the percentages of high school graduates who took the ACT…

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Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

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Q: which of the following statistcs anxiety is best and why ? worth of statistics, interpretation…

A: Note: Hey there! Thank you for the question. As the question is not given in a particular context,…

Q: 1. What is the explanatory variable, and what is the response variable? 2. What are the populations…

A: 1. **Explanatory and Response Variables**: - The explanatory variable (independent variable) is…

Q: What is the Sample Skewness for the following numbers: mean of 101 , median of 99, and standard…

A: Skewness is used to measure the symmetry of the data set. If the skewness value is 0 then there…

Q: What would the p-value be for a sample if the test statistic is 0.968 and the significance level is…

A: Given data: Test statistics = 0.968 The test is assumed to be right tailed test. Significance level…

Q: What is the inter-quartile range for the following data? You must show work. 27, 29, 29, 30, 24, 25,…

A: From the provided information,The data values in ascending order are as follow:4, 8, 17, 23, 24, 25,…

Q: Examine your ANOVA table to see if there is a significant difference between cannabis use and social…

A: Provided information is, two-way ANOVA was used to examine the effect of anxiety level and cannabis…

Q: College students may be interested in whether or not their majors have any affect on starting…

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Q: A company executive claims that employees in his industry get 100 junk emails per day. To further…

A: Given Information: Consider the given dataset: 125, 101, 109, 94, 122, 92, 119, 90, 118, 122. The…

Q: Remember that internal validity is the extent to which a study allows you to infer causation. Below…

A: qualitative intervention Experimental  Cross-sectional study Case-control study

Q: 2. Pick one of the three Measures of Central Tendency and explain a situation which would cause it…

A: The given tendencies are  Mean, median, mode

Q: According to a Yankelovich poll, women spend an average of 19.1 hours shopping during the month of…

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Q: Use 9 steps of hypothesis testing (indicate test to use). Is there any evidence that leadership…

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Q: Many people believe that criminals who plead guilty tend to get lighter sentences than those who are…

A: The null and alternative hypotheses are: H0: The sentence (sent to person or not sent to person) is…

Q: The 40-hour work week is considered the standard in American society today. Imagine you wish to use…

A: The t-statistic is generally higher than the z-statistic at smaller degrees of freedom, i.e. at…

Q: Which of the following should be used in case-control studies because of how the researchers…

A: It is required to find the correct option with respect to case control studies.

Q: Is the Stock Market Independent?The Standard and Poor 500 (S&P 500) is a weighted average of the…

A: (a) The probability that the S&P 500 increased on a randomly selected market day between January…

Q: 3) The management of an amusement park wanted to determine the amount of waiting time for the park's…

A: Answer can be given by using the formulas for mean, median, mode and midrange.

Q: Standard Sample Size Mean Deviation 5.59 5.45 13.38 372 Pretest: all BACC classes Pretest. all…

A: Confidence Interval: It is a range of values in which the required measures can be in with some…

Q: what is the test statistic for Tool B? What is the p value?

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Q: Consider a hypothesis test to decide whether the mean annual consumption of beer in the nation's…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: A music expert from a CD player company believes that 40% of music lovers prefer romantic music.…

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Q: There are three registers at the local grocery store. I suspect the mean wait-times for the…

A: (a) State the hypotheses.

Q: 1. Perform a Two-Way ANOVA using the dataset (Sheet name: Prosthetic). Copy the result of the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Find the​ (a) mean,​ (b) median,​ (c) mode, and​ (d) midrange for the data and then​ (e) answer the…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: what statistical tool to use in sample of 40 students:  significant difference between the set of…

A: Statistical tools are used for planning, designing, analyzing and interpreting the results to make…

Q: Table 1 summarizes the demographic and baseline data. Since two independent groups were included,…

A: Given information: The researcher is specifically interested to study the differences in age…

Q: What is the Sample Skewness for the following numbers: mean of 86.67 , median of 112, and standard…

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Q: y, or Kruskal-Wa

A: Above all given option are non parametric test hence answer must be non parametric test  The Mann-…

Q: Show the difference between two approaches to significance testing?

A: The two approaches to significance testing are p-value approach and critical value approach.

Q: Do a significance test for a specific comparison?

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Q: Explain why there is more than one method for measuring central tendency?. Why not use a singly…

A: Different methods are needed because variables can have different levels of measurement and a…

Q: t will you use for the sample research relationship between academic stressors and learning…

A: The chi-square test of independence is known as the method that is used to define whether there is a…

Q: A standardized exam consists of three parts: math, writing, and critical reading. Sample data…

A: The data…