PC Gaming: A computer magazine editor claims that the mean cost of a gaming computer is $1250. A test is made of =:H0μ1250 versus ≠:H1μ1250. The null hypothesis is not rejected. State an appropriate conclusion.

Q: you routinely administer a measure of anxiety to clients in your neuropsychological assessment…

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A: ANOVA is used to test whether the mean of three or more groups are equal.Pearson's correlation is…

Q: QUESTION 6 Given an x-mean of 15 and a y-mean of 12.2, calculate the crossproduct of x=15 and y=8.

A: When x=15 and y=8 Crrosproduct =x*y = 15*8

Q: The correlation between a person's height and weight is positive. True False

A: To identify the given statement is true or false.

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A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: Please check my answers

A: Step 1: State the given: population mean, μ = 394 pounds Step 2: Recall the difference of the null…

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A: Solution

Q: How is my work? Should anything be changed?  A researcher wanted to examine the effect of a new…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks Instruction : How…

Q: Will you provide an example of Standard Deviation math problem and solution?

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Q: students typically walk to school. DeAnna thinks that the proportion is higher than 0.13 at her…

A: Given that  Sample size n =100 Favorable cases x =17 Sample proportion p^=x/n  =17/100 =0.17

Q: Write both the null and alternative hypothesis. Use the correct notation for full credit. The mean…

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Q: In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the…

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Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

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Q: Solve the problem. 21) Person A makes 10,000 dollars a month in a company, for which the mean is…

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Q: What formula is used to find the standard error of mean?

A: we have to give correct formula to find standard error of mean.

Q: The mean of a test is 400 and the standard deviation is 75. It is normally distributed. A sample of…

A: 1] Mean μ=400 2] standard deviation σ=75 3] n=25 4] μx¯=400σx¯=σn=7525=15

Q: If the t-statistic for a variable is -1.74, is the variable statistically significant?   No   Yes

A: If the t-statistic for a variable is -1.74, is the variable statistically significant? Explanation:…

Q: A study by researchers at a university addressed the question of whether the mean body temperaturé…

A: Given  The population mean μ = 100.4 a) The null hypothesis will be H0 : μ = 100.4

Q: The mean number of English courses taken in a two-year time period by male and female college…

A: Given data is appropriate for t-test for difference of means . because the sample size is less than…

Q: Experts claim that 10% of murders are committed by women.  In a random sample of 67 murders, 10 were…

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Q: hat are your decision and conclusion? a. p-value alpha. Fail to reject Ho. The model is not…

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Q: MAKE SURE YOU SELECT 2 ANSWERS FOR THIS QUESTION - Type of test and hypothesis. A meteorologist…

A: Given population mean μ=0.46  Population standard deviations σ=0.12

Q: Describe about mean square between.

A: In ANOVA, “SS” stands for “sum of squares”, “df” stands for degrees of freedom, F is for the test…

Q: Many people believe that the average number of Facebook friends is 140. The population standard…

A: The population standard deviation is given as 37.9 The sample size n= 39 The sample mean x¯ = 152

Q: Do people walk faster in the airport when they are departing (getting on a plane) or do they walk…

A: This means that there is a 10.2% probability of observing a mean difference as extreme as or more…

Q: What is the alternate hypothesis for the test of significance?

A: Test is that whether a loud noise will cause the mice to complete the maze faster.

Q: Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from…

A: Given regression equation is y=-107+1.03x If x=184 y=?

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Q: Please solve using EXCEL and show each step/formula used to solve the question. Person A studies a…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: The entering SAT scores and high school GPA’s of 100 first-year students and their grade point…

A: The entering SAT scores and high school GPA’s of 100 first-year students and their grade point…

Q: Perform at-test (signiticance level a - 0.05) to test your null hypothesis and compare diastolic…

A: Introduction:  To tests, the equality of the two population means we can use the two-sample t-test.…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

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Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

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Q: A research study investigates the occurrence of extra heartbeats between untrained and trained older…

A: Given the data as

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A: If there are two outcomes A and B.

Q: define the parameter and write the null and alternative hypotheses in the past, the mean score of…

A: In this case, we need to write the null and alternative hypotheses.

Q: Problem solving: Show your complete solution 1. The average number of heart beats per minute for a…

A: Let, X be the number of heart beats/minute. Sample mean= x¯ =85 Sample sd = s =10 Sample size = n…

Q: Please solve using the 5 steps, thank you. Oil wells in a large field produce an average of 3.5…

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