what is the z score that corresponds to P18

Q: Determine the P-value for a one-sided test with z = 1.89

A: here given , hypothesis test is one tail  test statistic  =  1.89  use excel command for p -value

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

A: z-distribution represents the standard normal distribution. Standard normal distribution has bell…

Q: Nolan surveyed 7 teachers from each academic department at school. Each department has an equal…

A: Given: 7 teachers from each academic department surveyed Each department has an equal number of…

Q: If the z statistic value calculated is -1.49, what is the p-value

A: Hello! Thanks for the question. There is no information about the tail of the test. We are providing…

Q: (a) What percent of the scores are less than 19? (b) Out of 1500 randomly selected scores, about how…

A: mu = 19.9 s = 5.1

Q: A sample consists of the following n = 6 scores: -2, 3, -3, 1, -3, 4 What is the Z-score for the raw…

A: Given data set is -2,3,-3,1,-3,4sample size(n)=6

Q: Find and interpret the z-score for Montana, which had 1.9% foreign-born residents.

A: a) The percentage of foreign-born residents is 1.9%. That is, score=1.9 From the output, mean=8.73…

Q: What is the Z score? X is 24, mean is 9.5137615, and standard dev is .4.2505221

A: Given Information: x = 24,  μ=9.5137615, σ=4.2505221 z-score is a standardized value that specifies…

Q: A boxplot for a set of 60 scores is given below. T 5 6 8 10 11 12 13 DATA

A: Given: Box-Plot

Q: If I have a sample of people’s ages, and the IQR is 20, what does this mean?

A: Given:  IQR for sample of people's ages is 20.

Q: What is the mean for the combined set if both of the original samples have n = 4 scores? What is the…

A: Given that For sample 1, mean M1 = 8 For sample 2, mean M2 = 16

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: A sample has SS= 20 and s2 =4. How many scores are in the sample?

A:

Q: What raw score guesses define the middle 95% of the scores?

A:

Q: 2. Compute the mean for the difference scores.

A: First we have to calculate the difference in scores for each participants.

Q: . What is the p-value?

A: here given  Sample mean  = 24 mph  Sample standard deviation  =  2.2 mph  Sample size  = 14  here…

Q: About 7% of males are colorblind. Hoping to find many colorblind men for her study, a researcher…

A: It is given that p =0.07 and n = 433.

Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: How did you get the p-value?

A:

Q: A medical researcher wants to do a study on the proportion of knee replacement surgeries that result…

A:

Q: A population of N = 6 scores has ΣX = 42. What is the population mean?

A: Given ,Population of N=6 scoresand Σx =42

Q: A sample consists of the following n = 6 scores: 5, 5, 5, 8, 8, 8 What is the Z-score for the raw…

A:

Q: Sample of 3173 Q1= 107 Q2 = 124 land 'Q3= 141 Whats the IQR?

A:

Q: The theater owner wants to sample 250 customers out of the 3500 in attendance. This will be a 1 in k…

A: Population is the set of all objects of interest. Sample is s subset of the population. It is not…

Q: What is P(A and Y) ?

A: here use basic probability  Probability  = =no of favorable outcomes total outcomes

Q: When performing test on 3₁ (for liver), what is the p-value? [Select] what is the decision on the…

A: (a). p-value for liver is 0.134790 from the first table.  (b). p-value for liver is 0.134790 which…

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: What is the 87.7 percentile of X~N(12,3)

A: Answer: Given that, X~N(12,3)

Q: 300 books were selected at random from a library. If the mean length of books in this sample was 150…

A: Given that total books, n= 300 Mean, X bar= 150 and  Variance, sigma= √100 = 10 We know that z…

Q: Find the lower quartile (Q1) of the following set of scores: 6, 7, 8, 9, 11, 13, 15

A:

Q: What's the p-value?

A: In this case, we need to define the p-value.

Q: Determine the test score of John in Statistics if he has a z-score of 1.89. (SD = 4, mean = 82)

A:

Q: What is p value

A: From the given information, the test statistic value is 13.3289.

Q: If the p-value of a test is 0.022. what is your decision?

A: For making conclusion about null hypothesis Ho we compare p-value and level of significance.

Q: Why must the sum of all fs in a sample equal N?

A: Every datum in a sample is assigned to a category/class depending on its value. For a given dataset,…

Q: What is defination for p -value

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

Q: 8. Use the figure to the right, which shows the percentages of adults from several countries who…

A: Given Information: Country A: Sample size (n1) = 1003 Sample proportion (p^1) = 49% = 0.49 Country…

Q: A set of three scores consists of the values 3, 7, and 2. Σ2X² =

A: Given: Let X represents the values of set of three scores.  The provided data is: S No. X 1 3…

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

A:

Q: Explain how the formula of finding the x-value of the corresponding z-score was formed.

A: The outcome of a random experiment is called random variable. And z-score is the standardized 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 composite scores

A: Composite score is the average score. For the three students composite score=total score or raw…

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: The symbol μx¯ represents the mean of a sample of size n. True False

A: The sampling distribution of sample means of size n follow normal distribution with mean and…

Q: According to the Humane Society, 33% of households in the United States own at least one cat. You…

A: From the given information p Value is 0.092. We want to interpret it.

Q: Determine the test score of John in Statistics if he has a z-score of 1.9. (SD = 4, mean = 85)

A: Given that in statistics, John has z-score of 1.9 where mean score is 85 and SD is 4. Here, to find…

Q: Which is the correct output (B or C) for the appropriate test? Explain.

A: A student compared organic food price at Grocery1 and Grocery2 here we use Paired t-test for…

Q: The sample mean is obtained by dividing the sum of all sampled values divided by On-1 On-3 On-2 On-0

A:

Q: I dont understand how to find a z score in statistics in psychology

A: Solution: Let X be the random variable.

Q: The symbol ¯xx¯ represents the mean of the sample. True False

A: The given statement is TRUE. Because, the symbol x-bar represents the mean of a sample.

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.