An entomologist writes an article in a scientific journal which claims that fewer than 3 in ten thousand male fireflies are unable to produce light due to a genetic mutation. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.       There is not sufficient evidence to support the claim that the true proportion is greater than 3 in ten thousand.     There is not sufficient evidence to support the claim that the true proportion is less than 3 in ten thousand.     There is sufficient evidence to support the claim that the true proportion is greater than 3 in ten thousand.     There is sufficient evidence to support the claim that the true proportion is less than 3 in ten thousand.

Q: Are job applicants with easy to pronounce last names more likely to get called for an interview than…

A: There are two independent samples which are easy to pronounce and difficult to pronounce. We have to…

Q: Afranical analyst is wondering whether the proportion of young adults (ages 18-29) in the US would…

A: from the given data  the proportion is p= 0.16 size of sample is n=1000

Q: A sample of 1200 computer chips reveal that 53% of the chips do not fail the first 1000hours of…

A: Given: P=50%=0.50n=1200p=0.53

Q: In a random sample of 340 cars driven at low altitudes, 46 of them exceeded a standard of 10 grams…

A: Given Data

Q: Based on information from a large insurance company, 68% of all damage liability claims are made by…

A: Given that  Sample size n =54 Favorable cases x =41

Q: An agency reports that 11.5% of workers in a particular country belonged to unions. Suppose a sample…

A: (b) The sample proportion is, p^=xn=42300=0.14 The test statistic is,…

Q: study published in a​ journal, occupational accidents at three construction sites in a country were…

A: According to the given information in this question We need to answer all the parts

Q: Write the Null and Alternative Hypotheses. An entomologist claims that fewer than 200 in 10,000…

A: From the above example The hypothesis are given picture

Q: A sample of 1600 computer chips revealed that 42% of the chips do not fill in the first 1000 hours…

A: Given n=1600 P-cap=0.42 P0=0.39

Q: In the Marist Institute allergy survey, 2.5% of a national wide randomly selected sample of n = 880…

A: Type I Error: Type II Error: And Given that: Sample size, n = 880 Sample proportion, p^=0.025

Q: Only 19% of registered voters voted in the last election. Will voter participation increase for the…

A: a. For this study, we should use z-test for single proportion.

Q: A survey was conducted to investigate trends of romantic relationships and online behaviors. Out of…

A: given data IN THEIR 20S : n1 = 250x1  = 180IN THEIR 40S: n2  = 260x2 = 156α = 0.05claim : p1 ≠ p2

Q: An environmentalist wishes to conduct a hypothesis test on the percentage of cars driven in a cities…

A: The sample size  n=114 The proportion is  p=0.08 The conditions to use the z-test to test the claim…

Q: A sample of 1500 computer chips revealed that 26% of the chips fail in the first 1000 hours of their…

A: In hypothesis testing, we start by stating the null hypothesis (H0) and the alternative hypothesis…

Q: According to the Centers of Disease Control, about 22% of American young people between the ages of…

A: (a) Denote p as the true proportion of obese students between 12 and 19 years of age, in the local…

Q: A sample of 900 computer chips revealed that 48 % of the chips fail in the first 1000 hours of their…

A: In hypothesis testing, we start by stating the null hypothesis (H0) and the alternative hypothesis…

Q: A local police chief claims that about 40 % of all drug related arrests are never prosecuted. A…

A: Here we conduct Z test for  proportion. N= 500 p0 = 0.4 and p = .44 alpha = 0.05

Q: A humane society claims that less than 62% of households in a certain country own a pet. In a random…

A: GivenA humane society claims that less than 62% of households in a certain country own a pet. In a…

Q: We are interested in comparing the proportions of men and women who say earning a large salary is…

A: Given the data of men and women who say earning a large salary is very important to them as   Yes…

Q: A large fishing farm with thousands of fish has been treating its fish to stop a spreading fungal…

A: From the given information, A simple random sample of 150 fish is taken and a careful examination…

Q: According to a reputable magazine, the dropout rate for all college students with loans is 30%.…

A: From the provided information, The dropout rate for all college students with loans is 30% that is p…

Q: uppose U.S. consumers 21 years and older consumed 26.3 gallons of beer and cider per person during…

A: Solution: To test the hypothesis Ho:μ≤26.3      VS    Ha:μ>26.3 Reject Ho

Q: A researcher claims that the proportion of students who have traveled abroad is greater than 45%. To…

A: A hypothesis test is carried out to check the claim proportion of students travelled abroad is…

Q: In a survey of 1120 new college graduates, 281 had a professional job on graduation day. 1. one…

A: The hypothesized proportion is 0.24.

Q: It has been determined that 37 out of 100 adult Americans that did not attend college believe in…

A: There are two independent samples which follows normal distribution. We have to test whether the…

Q: A mail-order company has 2 warehouses. Independent surveys show that 364 out of 400  orders placed…

A: Given Information: Warehouse 1: Sample size n1=400 Number of successes x1=364 Warehouse 2: Sample…

Q: n organization published an article stating that in any one-year period, approximately 7.5 percent…

A:

Q: Minnesota had the highest tumout rate of any state for the 2016 presidential election.t Political…

A:

Q: A local police chief claims that about 57% of all drug related arrests are ever prosecuted. A sample…

A: Solution: From the given information, the claim is that about 57% of all drug related arrests are…

Q: A college professor states that this year's entering students appear to be smarter than entering…

A: From the provided information, The college's records indicate that the mean IQ for entering students…

Q: The local sheriff has staked his campaign for re-election on the claim that that at least 88% of the…

A: From the provided information, The Sheriff claim that at least 88% of the drivers stopped on…

Q: Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim.…

A: Given claim: An entomologist claims that fewer than 19 in ten thousand male fireflies are unable to…

Q: has recently been claimed that 25% of adults consider spring to be their favorite season of the…

A: Solution

Q: A states Division of Motor Vehicles (DMV) claims that 60% of teens pass their driving test on the…

A:

Q: ompany believes that there is no difference between the current financial year and the previous…

A: Given: Expected ratios of frequency = 2: 3 : 5 (large: medium: small) Observed counts is shown below…

Q: A cookie company has announced that they average 1000 chocolate chips in their cookie packages.…

A: 2) The null hypothesis is a simple statement about the value of the population parameter which is…

Q: Now, it's your turn! Based on the following scenario, formulate the two hypotheses about the average…

A: Given that  Sample size n =60 Population mean μ =19

Q: 180 reported using social media to check on an ex (someone they used to date / be in a romantic…

A: Answer:- Given, Out of 250 adults in their 20s (20 to 29), 180 reported using social media to check…

Q: A sample of 1100 computer chips revealed that 25% of the chips fail in the first 1000 hours of their…

A: H0 : p = 0.28Ha : p ≠ 0.28 There is sufficient evidence at the 0.10 significance level to dispute…

Q: men to STEM fields in college, 700 female students who ompleted the program were compared to 1200…

A:

Q: It has recently been claimed that 25% of adults consider spring to be their favorite season of the…

A: From the provided information, Population proportion (p) = 0.25 A researcher is skeptical of this…

Q: Based on information from a large insurance company, 66% of all damage liability claims are made by…

A: Population proportion : p=0.66 Sample size : n=54 Number of success : x=41

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.