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

Q: Q3: What type of test statistic is needed?

A: Here given , muzzle velocities of eight shells tested with new gunpowder . So here n = 8

Q: The test statistic is:

A: 19. Here , we want to find the value of test statistic. Here we use the paired t-test. As per our…

Q: additionally how would you find the: test statistic & p-value

A: The claim is that mean lead concentration is less than 19 μg/g Null hypothesis: H0 : µ=9 μg/g…

Q: I can't figure the correct test statistic or P-value

A:

Q: What are the values of the test statistic and P-value for their test?

A: We have to conduct a Chi - square test of independence.

Q: Which of the 3 measures of central tendency will help a teacher determine the tardiest student in…

A: for tardiest student in the class: 1) Mean 2) Median 3) Mode

Q: Twenty years​ ago, 47​% of parents of children in high school felt it was a serious problem that…

A:

Q: Jump to level 1 software company is interested in improving customer satisfaction rate from the 76%…

A: Given data, p=76% =0.76 n=230 x=183 Sample proportion is   Test Statistic z=?

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: 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: What kind of test is used to solve the test statistic value for the population proportion?

A: We want to tell you what kind of statistic and test are used for population proportion.

Q: When is it appropriate to use a one-sample Z test and how is this value similar to a simple z or…

A:

Q: What is the test statistic and the p-value

A: here use matched pair t test because sample remain same but treatment on same sample performed

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: 9. At a 1% level of significance, does college academic grade depend on the high school SAT result…

A: Given:   SAT   Acad. Grade Low Average High Total Low 13 25 21 59 Average 18 31 38 87…

Q: Martha wanted to find out the perceptions of Grade 12 learners in Homeschooling. She randomly…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: . What is the p-value?

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

Q: A software company is interested in improving customer satisfaction rate from the 66% currently…

A: From the provided information, A software company is interested in improving customer satisfaction…

Q: α is the observed level of significance whereas the p-value is the preset level of significance.…

A: We have given that, α is the observed level of significance whereas the P- value is the preset level…

Q: A software company is interested in improving customer satisfaction rate from the 50% currently…

A: The null and alternative hypothesis is defined as:

Q: Describe about the Level of Significance or p -Value?

A: Level of significance: The significance level is a value used as a criterion for deciding how small…

Q: compared to the median, the mean number of hours that participants watch television is ___.  -lower…

A: The given Statistic is :

Q: Which statistical method would be most effective to determine if the average size of dogs in Europe…

A: Find statistical method would be most effective to determine if the average size of dogs in Europe…

Q: Twenty years ago, 56% of parents of children in high school felt it was a serious problem that high…

A: Using the given data fill the blanks

Q: A software company is interested in improving customer satisfaction rate from the 62% currently…

A: Population proportion is 0.62 Sample proportion is 90/135 =0.6667

Q: Based on the P-value shown in the picture do you reject or fail to reject the null hypothesis?…

A: The P-value is 0.0238.

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: According to the 2005-2006 National Pet Owners Survey, only 16% of dogs were adopted from an animal…

A:

Q: Find the standardized test statistic .

A: p1 = 0.45p2 = 0.39 n1 = 1042n2 = 1061

Q: What is the 25th percentile of a χ2 distribution with 20 degrees of freedom? What symbol is used to…

A: It is an important part of statistics. It is widely used.

Q: Explain why the use of a level of significance of 5% is not best in all circumstances.

A: There are two types of error, which are as follows Type I : Reject the null hypothesis when it is…

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

A: Given n=850 P0=0.54 so n*P0(1-P0) = 850*0.54*(1-0.54) =211.1

Q: Assume you are using a significance level of a = 0.05| to test the

A: As given,  α = 0.05 We have to test the claim: µ < 20  Sample size ( n ) = 33 µ = 14 and σ = 8…

Q: What are the assumptions when you use a Z score?

A:

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: What does the p-value for a test result represents?

A:

Q: A software company is interested in improving customer satisfaction rate from the 55% currently…

A: The following information is provided: The sample size is N=247N = 247, the number of favorable…

Q: Consumer Reports did a survey of 1100 adults and found that 565 were unhappy that their food did not…

A: Given, The sample proportion is, The null and alternative hypothesis is:

Q: Twenty years ago, 57% of parents of children in high school felt it was a serious problem that high…

A: From the provided information, Population proportion (p0) = 0.57 Sample size (n) = 700 and x = 244

Q: If the p-value of a test is .037 then you would

A: Solution: Test value=0.037 Then find p-value is

Q: A software company is interested in improving customer satisfaction rate from the 54% currently…

A: Given, A software company is interested in improving customer satisfaction rate from the 54%…

Q: The PRC wants to assess the difference in ratings of five different engineering board examinations.…

A: This is an ANOVA test for a single factor

Q: How to Convert raw scores to deviation scores?

A: Standard normal distribution: Standard normal distribution is the normal distribution with mean as 0…

Q: what is the p value if the test static is 1.319 and the significance level is 0.01?

A: Testing of Hypothesis: Testing of hypothesis is a rule which, when the sample values have been…

Q: 586 students participated in a study that aims to determine if the level of self-esteem is…

A: The purpose of study was to check the association  between level of self-esteem and  the levels of…

Q: what is the difference between z* and z-score?

A: z* is called the z-critical value. We calculate the z-critical value or z* from the standard normal…

Q: what is the p value? is the p-value low? can we conclude?

A: Answer 1: The intersection P-value is 0.11225061. Thus, the intersection P-value is 0.11225061.…

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

A:

Q: A statistician changes her level of significance from .001 to .05.  What impact will this change…

A: The hypothesis test, will contain two hypotheses: null hypothesis and alternate hypothesis. The…

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: using the given data fill all the blanks required

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.