The National Academy of Science reported that 37%37% of research in mathematics is published by US authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 37%37%. He has no indication of whether the percentage has increased or decreased since that time. He surveys a simple random sample of 142142 recent articles published by reputable mathematics research journals and finds that 6565 of these articles have US authors. Does this evidence support the mathematics chairperson’s claim that the percentage is no longer 37%37%? Use a 0.010.01 level of significance.     Compute the value of the test statistic. Round to two decimal places.

Q: It is believed that 11% of all Americans are left-handed. A college needs to know the number of…

A: The objective of this question is to identify the random variable, population parameter, and…

Q: The National Academy of Science reported that 41%41% of research in mathematics is published by US…

A: sample size(n)=276x=129significance level()=0.01sample proportion()=

Q: It is believed that 11% of all Americans are left-handed. A college needs to know the number of…

A: As per the question we have 11% of all Americans are left-handed College recorded whether the…

Q: The National Academy of Science reported that 38% of research in mathematics is published by US…

A: Solution: Given data p = 0.38 Sample size( n) = 279 x = 123 Level Of significance = 0.02 To Test the…

Q: The National Academy of Science reported that 36% of research in mathematics is published by US…

A: Given p=36%, n=278,  X=85  Level of significance ɑ=0.02

Q: Frito-Lay produces a 10 ounce family size bag of the regular potato chips and a 9.5 ounce family…

A: The parameter of interest is the mean weight difference between regular and wavy chips.

Q: The National Academy of Science reported that 33% of research in mathematics is published by US…

A: sample size(n)=280No.of articles have US authors(x)=108significance level(α)=0.01

Q: It is believed that 11% of all Americans are left-handed. A college needs to know how many…

A: Note: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: One cable company claims that it has excellent customer service. In fact, the company advertises…

A: sample size(n)=16Mean()=45.3standard deviation(s)=7.9significance level()=0.05

Q: The National Academy of Science reported that 31% of research in mathematics is published by US…

A: Given : Hypothesized proportion : p0=0.31 Claim : Proportion is different from 0.31 . Sample size :…

Q: estions on a our gender? Male Fema times have you cheated on 1 or 2 times 3 or more able of observed…

A: In above research we have to use chi square test of independence. this test tells us about that two…

Q: It is believed that 11% of all Americans are left-handed. A college needs to know the number of…

A: 1. Here the parameter of our interest is proportion of left handed American (p) 2. Our null…

Q: Last year, the marist poll conducted a national survey of adults and found that 35% responded "A lot…

A: Null and Alternate Hypothesis: H0: Response to this question by adults nationwide has not changed…

Q: If we have a data set containing the age and marital status of large group of individuals and we ask…

A: Independent samples t test: The independent samples t-test can be used to examine a possible…

Q: The National Academy of Science reported that 37% of research in mathematics is published by US…

A:

Q: Social networking is becoming more and more popular around the world. Pew Research Center used a…

A: Introduction: Denote p1, p2, p3, and p4 as the true proportions of adults using social networking…

Q: Any basketball fan knows that Shaquille O'Neal, one of the NBA's most dominant centers of the last…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: In June 2012 the Gallup organization conducted a pollusing a random sample of 1004 adults, aged 18…

A: From the given information, we have confidence Interval is 95%  Sampling error is 4 percentage…

Q: You may need to use the appropriate appendix table or technology to answer this question. A magazine…

A: Given: Total number of women (n1) is 150. Number of women who trust recommendations made on this…

Q: The National Academy of Science reported that 37% of research in mathematics is published by US…

A: we have to find test  statistics..

Q: The National Academy of Science reported that 31 % of research in mathematics is published by US…

A: p=0.31 n=188 x=74

Q: A Pew Research study conducted in 2017 found that approximately 75% of Americans believe that robots…

A: Given data, Nurse TaxAuditor Fast-FoodWorker 3 4 5 4 5 8 6 4 6…

Q: The National Academy of Science reported that 33% of research in mathematics is published by US…

A: This problem can be solved using z test for proportion. The formula for the z test statistic is…

Q: A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in…

A: given data

Q: (a) State the null hypothesis H and the alternate hypothesis H,·

A: When o12≠σ22; t-test for H0 can be performed by two approaches. One is W. G. Cochran's approximate…

Q: rom the U.S. Census Bureau’s American Community Survey in 2019 it was found that 33.13% of United…

A: since there are multiple parts, first three subparts are answered. kindly repost for more help .

Q: n this social networking site differ by gender? The following sample data show the number of women…

A:

Q: If the 2412 leaves are not a random sample, but the researchers treated the 2412 leaves as a random…

A: The data would most certainly be "precise, but not accurate," since the sample is large enough to…

Q: The National Academy of Science reported that 33%33% of research in mathematics is published by US…

A: The objective of this question is to test the claim that the percentage of research in mathematics…