Based on the above, he est statistic is equal to?

Q: What is the third quartile

A: We are asked to find the third quartile

Q: The value of the test statistic is

A:

Q: When would the mean grade in a class on a final exam be considered a statistic? When would it be…

A: The difference between a statistic and a parameter is that a sample is defined by statistics. A…

Q: This is rejecting Ho when it is true. If the alternative hypothesis says not equal to we know are…

A: We have to match the given definitions with the given terms.

Q: Why is the Method of Moments estimator, in mathematical statistics, consistent?

A: Given that:  Method of Moments estimator, in mathematical statistics:

Q: The manager of the Danvers-Hilton Resort Hotel stated that the mean guest bill for a weekend is $600…

A: We have the following information: The manager states that mean guest bill for a week-end is $600 or…

Q: Carry out the statistical test and state your conclusions.

A: 5) The null hypothesis is a simple statement about the value of the population parameter which is…

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

A: Given: Test statistic is -1.74

Q: If the Cl on the difference between two means does not include 0, we can conclude that there is a…

A: True

Q: A blood glucose lowering drug given to 4 subjects with Ho: Has 0 and at a = 0.05. The following data…

A:

Q: Isn't here the standard deviation equal to 4, not 2, as the tutor wrote?

A: Solution-: Given: μ=-3,σ=4 We want to find, P(0<X<2)=? Draw the picture.

Q: A doctor at a local hospital is interested in estimating the birth weight of infants. How large a…

A:

Q: Based on this graph what was the approximate distribution of the averages?  X~___(___,___)

A: Central limit theorem (CLT): According to CLT, for a given sufficiently large sample size from a…

Q: ..... The value of the test statistic is (Round to two decimal places as needed.)

A: Given :   sample size, n = 480 population proportion,p= 0.5 sample proportion…

Q: Are any of the leaf measurements from the table the same as the mean? How many of the leaves were…

A: Given Sample size, n=20 Oak-Leaf Lengths: 78,69,62,74,69,51,45,40,9,64,65,64,61,69,52,60,66,71,72,27…

Q: Consider the Sample mean, Xn. estimator of population as an

A: From the given information, Sample mean, X¯n is an estimator of population mean, μ. From the central…

Q: Can you help me determine the test statistic and P-value of the following equation?

A: Hypothesis testing plays a major role in research and development. To diagnose the underlying cause…

Q: Putra College surveyed its students to determine the average weekly time spent surfing the internet.…

A: Population in the set of all outcomes of interest in a study. In real life scenarios studying the…

Q: What is the value of the test statistic, F?

A:

Q: The mean score on stat finals for all Hartnell students is 78/100. Is this a parameter or a…

A: The parameter represent the population .

Q: A doctor at a local hospital is interested in estimating the birth weight of infants. How large a…

A:

Q: The sample mean x (with a bar above) is the best point estimator of the sample mean u(mu) True or…

A: Sample mean: The sum of the all observations of sample divided by the total number of observations…

Q: Suppos What is oximation

A: Given: suppose  a Taylor polynomial approximate sin (1) to within 10-6. To find: the Taylor…

Q: The value of the test statistic is (Round to two decimal places as needed.)

A: The test statistic formula is, t=x¯-μsn In the formula, x¯ is sample mean, μ is population mean, s…

Q: Make a conclusion based on the histogram (attached below)

A: We need to make interpretation based on given Histogram

Q: Compare these two, does the number of cups of coffee has an effect on the general average of a…

A: Given information: The data represents the values of the variables x = Number of cups and y =…

Q: when do we use the statistical treatments

A: I will discuss when we have to use statistical treatments

Q: A doctor at a local hospital is interested in estimating the birth weight of infants. How large a…

A: Given information- Standard deviation (s) = 7 ounces Error (E) = 2 ounces The margin of error…

Q: What information is provided by calculations of the “F” test statistic?

A:

Q: A doctor at a local hospital is interested in estimating the birth weight of infants. How large a…

A: Given Information: Confidence level = 90% = 0.90 Margin of Error (E) = 2 ounces standard deviation…

Q: Given this data and the R2 value being R2 = 0.446   How can you interpret the results of this…

A: The R2 is known as the coefficient of determination, The R2 measures how much variation in the…

Q: The test scores for a class of 155 students are computed. What is the location of the test score…

A: Given that  The test scores for a class of 155 students are computed n=155 Find the location of the…

Q: Before using these mean squares what does we must calculate?

A: Mean squares is nothing but the sum of the squares of the mean of the group   divided by the degrees…

Q: Explain why the F-ratio is expected to be near 1.00 when the null hypothesis is true.

A: Given Null Hypothesis is true which indicates the treatment has no systematic effect The error term…

Q: Jason's z- score in the 10-k run was -3. if the raw score standard deviation was 5, and the mean…

A:

Q: A weight-loss clinic advertised that last month its patients, on average, lost 7 lb. Assuming that…

A: Here Given  Weight loss clinic advertised that last month its patients On average lost 7 lb.

Q: Researchers wished to know if they could conclude that two populations of infants differ with…

A:

Q: The test scores for a class of 203 students are computed. What is the location of the test score…

A: Third quartile is above 75% of the observations.

Q: me in male firefighters and you’ve decided to use the sample mean, ?̅, as the estimator. Explain why…

A: The sample mean refers to a statistic obtained by computing the arithmetic average of the values of…

Q: In the past, a chemical company produced 880 pounds of a certain type of astic per day. Now, using a…

A: Claim: The mean daily yield for the new process is less than that of the old procedure.

Q: what is the Mean Absolute Deviation? What is it's purpose?

A: Deviation in statistical term defined as a single (or) more number of data values deviated from the…

Q: If you wish to run a hypothesis test to see if the mean cholesterol level is more than 200 mg/dL,…

A: Test is that whether mean cholesterol level is more than 200 mg/dL.

Q: What conclusion can you make base on the standard deviation?

A: Answer:

Q: the standard deviation however is not squared? don't we have to square those first because SD is…

A:

Q: Which of the following is an accurate definition for the power of a statistic test?

A: Power of a statistical test is the chance of rejecting the null hypothesis when the null hypothesis…

Q: Sarah thinks that she has lost interest in online shopping. Based on her shopping history, she can…

A: The null hypothesis is a simple statement about the value of the population parameter which is…

Q: Using a significance level of α = 0.05, state your conclusion in terms of H0.?

A: According to the provided information, the level of the significance level is 0.05. The level of…

Q: Which are considered to be measures of centi tendency?

A:

Q: What is the z score for 20 if mean =18 and stadnard deviation =0.5

A: