How do you find the z score and p value? Suon HeipInvestigators performed a randomized experiment in which 420 juvenile delinquents were randomly assigned to either multisystemic therapy (MST) or just probation(control group). Of the 219 assigned to therapy, 88 had criminal convictions within 12 months. Of the 201 in the control group, 74 had criminal convictions within 12months. Determine whether the therapy caused significantly fewer arrests at a 0.01 significance level. Start by comparing the sample percentages.The percentage of arrests for people who received probation was 36.82 %.(Type an integer or decimal rounded to two decimal places as needed.)The arrest rate was greater for people in the treatment group.Let p, represent the population proportion for people who are arrested after having received the treatment and let p2 represent the population proportion of peoplewho are arrested after having not received the treatment. Write the hypotheses for the test.Ho: P1= P2Ha: P1

Given: Level of significance = 0.01 Let, therapy - G1 control group - G2 p(G1)= p1 = 88/219 =…

Answered: Find the test statistic for this test.…

Find the test statistic for this test. (Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.)

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

See similar textbooks

Related questions

Q: A psychologist asked a random sample to complete a depression questionnaire. On average, children…

A: Given n=5 Df= ?

Q: What is the value of (EX)?for the following scores? Scores: 1, 5, 2 O a. 64 O b. 10 16 O d. 30

A: We have given that the values of X are 1, 5, 2.

Q: The final exam scores for Mr. Allen’s class are shown below. 56, 59, 60, 65, 71, 72, 74, 80, 80, 83,…

A: Given observation and calculation is shown below Score 2*score 56 112 59 118…

Q: Use the information provided here to answer the following questions. H0 : p 60, n 36, Xbar = 58.…

A: option (a) which is the information provided characterizes one smaple, one sided test is correct…

Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: The mean of the data set is 40.Find the value of x.The data set is 30,45,x,40,55,50.

A: From the provided information,The mean of data set is 40.The data set is 30,45,x,40,55,50.Number of…

Q: Allie has 5 exam scores 98, 94, 84, 95 and 95 in math class. What score does she need on the final…

A: According to questionAllie has 5 exam scores 98, 94,84,95 and 95 in math classWe have to calculate…

Q: In a married couple, the husband and wife are both 5 feet, 4 inches (64 inches) tall. Which person…

A: Given, In a married couple, the husband and wife are both 5 feet, 4 inches (64 inches) tall. The…

Q: What is Sxbar? Remember to perform calculations one step at a time and round each calculation the…

Q: A student did a survey on the age of marriage for married male and female students. Use the…

A: The table shows the age of marriage for married male and female students.

Q: How do I do Z score problems?

A: Introduction The z-score gives an idea of how far the data point is from the mean value.

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: Scores on a test have a mean of 66 and a standard diviation of 9. Michelle has a score of 57.…

A: Given, Mean μ=66 Standard deviationσ=9 Michelle has a score X=57

Q: how did you find the Z score?

A: The critical value of z for 97% confidence interval is 2.17.

Q: Determine whether the data described below are qualitative or quantitative and explain why. The…

A: Since we know that Quantitative Variables: Variables with values obtained through measurement or…

Q: How do you do a spearman’s test ranking

A: To perform spearman's rank correlation coefficient, Let X and Y are two variables.. first we find…

Q: Determine whether the data is from a primary or secondary source. Primary Secondary

A: Primary Data: These are the data which arecollected oneself by a surveyor for a specificpurpose.…

Q: The meaning of a set of data is 108.06 and it's standard diverse Asian is a 115.45. Find the Z-score…

A: The z-score calculated as;

Q: Do you think the mean:44.19 or the median:30 better represents the data? Explain your reasoning

Q: Nationally 58.3% of federal prisoners are serving time for drug offenses. A warden feels that in his…

A: The null and the alternative hypotheses are, H0: p=0.583 (The proportion of prisoners serving time…

Concept explainers

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.

Question

How do you find the z score and p value?

Suon Heip
Investigators performed a randomized experiment in which 420 juvenile delinquents were randomly assigned to either multisystemic therapy (MST) or just probation
(control group). Of the 219 assigned to therapy, 88 had criminal convictions within 12 months. Of the 201 in the control group, 74 had criminal convictions within 12
months. Determine whether the therapy caused significantly fewer arrests at a 0.01 significance level. Start by comparing the sample percentages.
The percentage of arrests for people who received probation was 36.82 %.
(Type an integer or decimal rounded to two decimal places as needed.)
The arrest rate was greater for people in the treatment group.
Let p, represent the population proportion for people who are arrested after having received the treatment and let p2 represent the population proportion of people
who are arrested after having not received the treatment. Write the hypotheses for the test.
Ho: P1= P2
Ha: P1<P2
Find the test statistic for this test.
z=
(Round to two decimal places as needed.)
Find the p-value for this test.
p-value =
(Round to three decimal places as needed.)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Basics of Inferential Statistics$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

What is an experiment?
List the sample space of each experiment. Tossing three coins
List the sample space of each experiment. Picking a one-digit number
What is a sample space?
List the sample space of each experiment. Selecting a letter of the alphabet
Consider an experiment to determine the effects of alcohol and marijuana on driving. Five randomly selected subjects are given alcohol to produce legal drunkenness and then are given a simulated driving test (scored from a top score of 10 to a bottom score of 0). Five different randomly selected subjects are given marijuana and then the same driving test. Finally, a control group of five subjects is tested for driving while sober. The driving test scores and the One-Way ANOVA table for these data are shown below. Test the hypothesis that there is a difference among the means of the three groups at 1% significance level. Alcohol Drugs Control 3 2 8 4 6 7 2 4 8 1 4 5 3 3 6 The following is the summary statistics for the table above generated from an Excel one-way ANOVA analysis: ANOVA SS df MS F P-value Between Groups 46.800 2 23.400 13.500 0.000848594 Within Groups 20.800 12 1.733 Total 67.600 14 Based on the Excel output, does there appear to be a…
Social functioning is the ability for an individual to interact or adapt in a normal or usual way in social environments. Albert et al. (2007) asked if relatives of patients with OCD are as healthy as those in general healthy populations. They measured the social functioning of relatives using a 36-item survey with scores ranging from 0 (worst possible health) to 100 (best possible health). The mean score for the general healthy population was 77.43. Using the sample data, test whether there was a difference. Scores: 20, 60, 48, 92, 50, 82, 48, 90, 30, 68, 43, 54, 60, 62, 94, 67, 63, 85 State hypotheses 2. Set the criteria using α= 0.05 3. Calculate t 4. What should you conclude?
The drug OxyContin (oxycodone) is used to treat pain, but it is dangerous because it is addictive and can be lethal. In clinical trials, 259 subjects were treated with OxyContin and 232 of them developed nausea (based on data from Purdue Pharma L.P.). Use a 10% significance level to test the claim that the proportion of OxyContin users that develop nausea is different from 90%. Procedure: Select an answer One variance χ² Hypothesis Test One mean Z Hypothesis Test One mean T Hypothesis Test One proportion Z Hypothesis Test Assumptions: (select everything that applies) Normal population Population standard deviation is unknown Population standard deviation is known Sample size is greater than 30 The number of positive and negative responses are both greater than 10 Simple random sample Step 1. Hypotheses Set-Up: H0:H0: Select an answer p μ σ² = , where Select an answer σ² p μ is the Select an answer population variance population proportion population mean and the units…
Online customer service is a key element of online retailing. According to the WSJ Market Data Group 37.5% of priceline customers take advantage of this service. If random samples of 200 customers are selected what proportion of samples are likely to have between 35 and 40 % who take advantage of online customer service?
A newly installed automatic gate system was being tested to see if the number of failures in 1,000 entry attempts was the same as the number of failures in 1,000 exit attempts. A random sample of eight delivery trucks was selected for data collection. Do these sample results show that there is a significant difference between entry and exit gate failures? Use a = 0.05. Entry failures Exit failures Truck 1 Truck 2 Truck 3 Truck 4 Truck 5 44 40 55 56 62 Truck 6 52 Truck 7 Truck 8 50 53 55 56 55 50 45 51 45 47
Acne is a common skin disease that affects most adolescents and can continue into adulthood. A study compared the effectiveness of three acne treatments and a placebo, all in gel form, applied twice daily for 12 weeks. The study's 517 teenage volunteers were randomly assigned to one of the four treatments. Success was assessed as clear or almost clear skin at the end of the 12 week period. The results of the study can be seen in the table below. Using the appropriate statistical test, determine if there is significant evidence that the four treatments perform differently. If so, how do they compare.
In the previous year, 40% of women over the age of fifty had regularly scheduled mammograms. Following last year's test, a campaign was initiated to encourage women to be tested regularly. This year, a cancer research group surveys a random sample of 450 women, and 195 respond affirmatively. With a 5% significance level, test to see if the campaign was effective.