What is the z-score corresponding to P15 three decimal places

Q: How many students should be sampled in order to be 90% confident in estimating the proportion in…

A: Given that  Margin of error =E =0.10 90% confidence.

Q: The number of students, in a class of 35, who improve their score from the first midterm to the…

A: Since we know that discrete variable : A variable which takes particular value , generally integral…

Q: t does a z-score of -3.8 mean

A: A z-score is known as the standard score that determines how much the data point deviates from the…

Q: What is formula for z score?

A: A z-score is a score which is computed to find out the number of standard deviations a value is away…

Q: A researcher is interested in factors related to academic performance of students.She hypothesized…

A: Given: Number of categories of academic majors (c) = 4 Test value = 2.75 p value = 0.283

Q: Area =

A: Given : Area = 0.1314 We have to find the Z-score

Q: There (Choose one) venough evidence to conclude that the mean FICO score is more than the cutoff of…

A:

Q: Estimate the p-value for this test.

A: The test statistic is 2.600. The degrees of freedom is, df=r-1c-1=3-13-1=2×2=4 The degrees of…

Q: Calculate the test statistic (Round Z-Scores to the nearest 3 decimal places).

A: The population standard deviation is 20 cents, population mean is $1.00(=100 cents), and sample size…

Q: What is the difference in what a small P-value tells us compared to a high P-value?

A: P Value is a method to determine the significance of the result from a data. It basically tells you…

Q: What is z Score?

A: A z-score is a score which is computed to find out the number of standard deviations a value is away…

Q: A reporter has claimed that the majority of Colleges in the United States are Private For-Profit…

A:

Q: What is the value of SX + 1 for the scores 1, 6, 3?

A: The sum of scores is 1+6+3 = 10. That is, SX = 10

Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: Test the claim that the proportion of people who own cats is larger than 50% at the 0.025…

A: Let p denotes the population proportion of people who owns cats. The claim of the test is that the…

Q: An analysis was conducted to determine whether the average height of the 25 girls in the same class…

A: To test whether the average height of 25 girls is different from the general population of 15-year…

Q: The recidivism rate for convicted sex offenders is 15%. A warden suspects that this percent is…

A:

Q: Select the z-score that is represented by the shaded region of the distribution.

A: The z-score that is represented by the shaded region of the distribution is -0.75. That is,

Q: What z-score value separates the highest 70% of the scores in a normal diatribution from the lowest…

A: Here we need to find a value z1 such that P(Z<z1)=0.7. Also Z ~ N(0,1).

Q: How can I compute P-value?

A:

Q: 17. What is the z-score that corresponds to P = 0.9131?

A: Solution: 17) Let Z be the standard normal variable with mean μ=0 and standard deviation σ=1.…

Q: Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more…

A:

Q: Parker's Pavers has determined that a paver measuring 5 inches long has a z-score of +1 and a paver…

A: Given data: Length of paver is x1=5 in. z-score corresponding to 5 in. paver is z1=1. Length of…

Q: A random sample of 260 workers in a high rise office building revealed that 30% were very satisfied…

A: Let the proportion of workers who are satisfied with the quality of work be p^ p^ = 0.30 (point…

Q: what does it mean if P-Value is extremely low?

A: The p-value or the calculated probability can be defined as the probability of finding the observed…

Q: What is the​ p-value?

A: Here sample size is too large so use z test for proportion

Q: When do we add the two corresponding areas of the z-score

A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: What is the predicted score of having a first child when the respondent's age of first marriage is…

A: Given: B0=2B1=1.2

Q: What is the score that divides the distribution into two such that 75% of the cases is b

A: Given that 75% of the cases is below the score. That is, PZ≤a=75%

Q: What is the z-score corresponding to P86 z = IMPORTENT----> three decimal places

A: Given P86=?

Q: Explain about two-tailed p-values.

A: Two tailed test: In two tailed test, the rejection lies in both sides. That is less than or greater…

Q: What is the formula for converting z score to original score?

A: Solution: Let X be the random variable. Suppose X has a mean µ and standard deviation σ. Then, the z…

Q: what does it mean to have a z-score between -1 and 1? Does that include decimals like 0.341 and…

A: A standard Z-score describes the number of standard deviations above or below the mean.

Q: A teacher measured brain activity in all 60 seniors in her Statistics class in the first week of…

A: The null and alternate hypothesis are H0 : μd=0HA : μd<0 where, μd is the difference of the first…

Q: I need to find the z-score of p72

A: Here, p72 represents the 72 percentile.

Q: b) A test of 80 youths and 120 adults showed that 18 of the youths and 10 of the adults were…

A: Given: The sample number of youths are n1=80. The sample number of adults are n2=120. The number of…

Q: What is defination for p -value

A: P-value :  It is mostly used for take decision while testing a hypothesis.

Q: 29. What is the z-score corresponding to P84 z = three decimal places

A:

Q: The p-value for this test is

A: Given : n=26 , s=0.06 , σ2=0.003  Our aim is to find the p-value.

Q: What information is provided by the sign (+/−) of a z-score? What information is provided by the…

A: The Z-score is given by: Population: Z=X-μσ,Sample: Z=X-Xs .

Q: What is the n-value for this test?

A: We have given that the result output by the MINITAB. The Chi-Square statistic is 7.507306. The…

Q: Identify the P-value. What is the conclusion for this test?

A: It is given that the test statistic is 12.67.

Q: What does the P-value describe?

A: P value can be defined as the probability value for a given statistical model that null hypothesis…

Q: How to determine Estimate the P-value.

A: Introduction:P-value: The P-value is the probability of obtaining a test statistic value as extreme…

Q: What is t critical for a study that contains 9 participants in one group and 11 is another group?…

A: Solution-: Given: We want to find critical values for situation

Q: what information is provided by the (+/-) of a z-score?

A: The z score tells us that the how far the mean is from the data point. The formula for z score is,…

Q: Define z-score

A: It is asked to define the z-score.

Q: A clinical psychologist took a sample of four people from the population of people with anxiety…

A:

Q: Find the P-value in a test of the claim that the mean IQ score of acupuncturists is equal to 100,…

A: From the provided information, The mean IQ score of acupuncturists = 100 The hypotheses can be…

Q: Compute the lower quartile of family income allocated to grocery purchases (round off to four…

A: Lower quartile Q1 is the value below which 25% of observations lie and above which 75% observations…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.