To begin answering our original question, test the claim that the proportion of children from the low income group that drew the nickel too large is greater than the proportion of the high income group that drew the nickel too large. Test at the 0.05 significance level. Recall 24 of 40 children in the low income group drew the nickel too large, and 11 of 35 did in the high income group. a) If we use LL to denote the low income group and HH to denote the high income group, identify the correct alternative hypothesis. H1:pLpHH1:pL>pH H1:pL≠pHH1:pL≠pH H1:μL<μHH1:μL<μH H1:μL>μHH1:μL>μH Correct b) The test statistic value is:    c) Using the P-value method, the P-value is:  d) Based on this, we Reject H0H0 Fail to reject H0H0 Correct e) Which means The sample data supports the claim There is not sufficient evidence to warrant rejection of the claim There is sufficient evidence to warrant rejection of the claim There is not sufficient evidence to support the claim

Q: 3. (Refer to Krejcie and Morgan Table) Considering the 1, 200 students in the School of Teacher…

A: Given information: Method to be used: Krejcie &amp; Morgan sample size determination method…

Q: With a significance level of .10 is is possible to say the less numbers have a mean of 60. (…

A:

Q: used a mnodern sheep astragalus to estimate the chances of its landing on each oI four sides and…

A: We have given that  Sample size n= 1000 Favorable cases x = 89 Sample proportion p^=x/n

Q: To begin answering our original question, test the claim that the proportion of children from the…

A: The random variable nickel follows binomial distribution. There are two samples which are Low income…

Q: 4. At a factory that produces switches, a batch of 3000 switches has just been produced. To check…

A: Given that at a factory that produces switches, a batch of 3000 switches has just been produced. To…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: study was conducted to determine the proportion of people who dream in black and white instead of…

A: People over the age of 50 are taken as group 1. People under the age of 25 are taken as group 2.…

Q: Dana is a math professor who usually teaches in-person but has recently started teaching online.…

A: Given that, mean , μ=76.5standard deviation,σ=19.1and sample mean(class-average),x =68.4 and sample…

Q: Dr. Pat Jones is an industrial psychologist and is currently studying stress amount internet company…

A: for the above data n=15 hence we use t test to build confidence interval. hence based on t…

Q: A machine is set to fill the small-size packages of M&M candies with 70 candies per bag. A sample…

A: The formula of degrees of freedom is, Where,   n denotes the number of observations.

Q: c) A presidential of staff's club hired a public relations firm to conduct a poll to see whether he…

A: The objective is to test whether Gender is related to how a voter feels about the president.…

Q: 1. Elena must take MATH 3020 next semester. She heard Dr. Instructor's class is an easy A, and she…

A: From the provided information, Sample size (n) = 35 From which 28 passed with an A.

Q: 5. Make an inference about your population. You must write one or more sentenčėš, even if you have a…

A: Histogram shows data points in a graphical format.

Q: Past studies have indicated that the percentage of smokers was estimated to be about 35%. Given the…

A:

Q: 24. The popularity of then President Sarkozy had an approval rating of 26%. a. P(fewer than 60 of…

A: Let an experiment has been repeated n timesHere, each experiment has the same probability of…

Q: If we consider that “common” heights are those that correspond to Z scores between -2 and 2, is…

A: The information provided in the question are as follows:-The heights of men are have the following…

Q: State the type of error (Type I or II) that has been made for the following claims. A. Claim: More…

A: Type 1 Error: Type 1 error is the incorrect rejection of a true null hypothesis. This is also known…

Q: Acar battery has a range that follows an approximately Normal distribution with mean 700 km and…

A: Given, X~N( 700,442 ) n=31 sample mean=690

Q: In a survey of 100 college students at Chabot College, 67 said that they commuted by cars. In…

A: a) The test hypotheses are: Null hypothesis: H0: p1 = p2 Alternative hypothesis: Ha: p1 ≠ p2 Test…

Q: Crumbs Cookies was interested in seeing if there was an association between cookie flavor and…

A: The data shows the cookie flavor and whether or not there was frosting.

Q: Suppose we want to test the claim that  the proportion of Californians who prefer single-family home…

A: From the given information,   Claim: Suppose we want to test the claim that  the proportion of…

Q: Suppose a survey conducted in 2012 asked a group of adults from a certain country whether they drink…

A: Given: survey in 2021 asked group of adults from certain country whether they drink seltzer water…

Q: Use these results from a USA Today survey in which 510 people choseto respond to this question that…

A:

Q: Out of 6000 graduates in a town 600 are females out of 1200 graduate employ 100 are females. Use z…

A:

Q: Solve the problem. A researcher wants to use a paired sample to determine whether the mean number of…

A: In the given problem we need to test whether there is difference between the mean number of hours…

Q: Residents in a city are charged for water usage every three months. The water bill is computed from…

A: INTRODUCTION :   HISTOGRAM: The Histogram is often useful to represent a frequency distribution…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 34%. Given the…

A: From the provided information, Population proportion (p) = 0.34 Sample size (n) = 2489 Out of which…

Q: What is H0? Group of answer choices: 1. pmales = .95 and pfemales = .05 2. pmales = .95 and pfemales…

A: Solution

Q: Researchers wanted to know if therapy could help smokers quit smoking. Of the 71 smokers they…

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

Q: 3) 100 people were surveyed to see if they were aware of a new product. The population of interest…

A: Given: 100 people were surveyed. Therefore, the sample size is n=100. 68 people were familiar with…

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: The random variable X follows binomial distribution. We have to use normal approximation to binomial…

Q: Gender * ADHD Gender Male Female 50 Percent 100.0% 0 Count Expected Count % within Gender % within…

A: Definition of Null and Alternative Hypothesis Null Hypothesis - There is no significant difference…

Q: A survey of people in New York and California found that 195 of the 580 New Yorkers recognized a…

A: Given information- Sample size for New Yorkers, n1 = 580 X1 = 195 Sample size for Californians, n2 =…

Q: 1. The Department of Health of Davao City conducted a survey about COVID-19 cases in Leon Garcia…

A: Given is a frequency table of the age distribution in the sample.Since you have posted multiple…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 31%. Given the…

A: The hypothesized proportion is 0.31.

Q: Ask 20 of your classmates about their favorite viand among the choices; ADOBO, SINIGANG and MENUDO.…

A:

Q: If an organization wants to test whether the majority of their employees would be interested in…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 9) Test whether there is an association between the number of people in the household (Q5) and the…

A: To test the association in between two variables we use the correlation coefficient.The…

Q: 26) Solve the problem. 26) Use a 0.01 significance level to test the claim that the proportion of…

A: The given claim is that the proportion of men who planed to vote in the next election is the same as…

Q: digits 1, 3. The board of directors of a corporation must select a president, a secretary, and a…

A: There are total 22 memebers.  n= 22 And we've to select a president, a secretary and a treasure. k=…

Q: To begin answering our original question, test the claim that the proportion of children from the…

A: Given Information: Let 1 be the subscript of low income group and 2 be the subscript of high income…

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A:

Q: Astudy w condcto determine he proportion of people who dream in black and white instead of color…

A: The question is based on hypo. testing of difference between two popl. prop. Given : No. of people…

Q: 4) Students in two fifth grades were given the same English test. One class of 27 students had a…

A: We have, One class of 27 student had a mean of 69 and the second class of 23 student had a mean 74.…

Q: To begin answering our original question, test the claim that the proportion of children from the…

A: From the provided information, nL=40xL=22nH=35xH=10 Level of significance (α) = 0.1

Q: In professional tennis for 2017 men challenged 2100 calls and 1105 of them were changed. While women…

A: From the provided information,

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.