In a population of fish, approximately 42% are female. A test is conducted to see if in fact the proportion is less. Which mathematical operator (=,<,>,≠,<\=,>\=) would go in the null hypothesis? And which one would go in the alternate hypothesis?

Q: Test the claim that the proportion of men who own cats is larger than 50% at The null and…

A: The null and alternative hypotheses are: Ho: p = 0.50Ho:p=0.50 Ha: p &amp;gt; 0.50H1:p&gt;0.50 This…

Q: In testing of hypotheses, the null hypothesis is the claim that is initially believed to be true O…

A: We will tell you above statement is true or false.

Q: A certain university claims that for the last school year the proportion of students who were not…

A:

Q: A television network is deciding whether or not to give its newest television show a spot during…

A: From the provided information, The population proportion (p) can be assumed as 0.50. The hypotheses…

Q: Given H 0: μ ≤ 25 and H a: μ > 25, determine whether the hypothesis test is left-tailed,…

A: Null hypothesis: H 0: μ ≤ 25 and Alternative hypothesis: H a: μ &gt; 25

Q: The average American consumes 9.8 liters of alcohol per year. Does the average college student…

A: Given that, μ= 9.8

Q: (a) A tutoring company would like to understand if most students tend to improve their grades (or…

A: Let p be the true proportion of students whose grades have improved after using the tutoring…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: The proportion of high school seniors who felt that "getting rich" was an important personal goal…

Q: A researcher conducts a hypothesis test to examine the hypothesis that stress is negatively…

A:

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A:

Q: According to Sports Medicine, one in two athletes uses performance-enhancing drugs. It is believed…

A: Null hypothesis: Alternative hypothesis:

Q: What is the research hypothesis for the null hypothesis, H0: µ1 = 18.03

A: We have to find given hypothesis.

Q: According to Sports Medicine, one in two athletes uses performance-enhancing drugs. It is believed…

A: From the given information,   Claim: It is believed that the relaxation of an existing policy by the…

Q: In a recent Super Bowl, a TV network predicted that 45 % of the audience would express an interest…

A: From the provided information, Population proportion (p) = 0.45 The hypotheses can be constructed…

Q: You are conducting a study to see if the proportion of men over 50 who regularly have their prostate…

A:

Q: 2. A researcher selects a sample of n = 20 from a normal population with p 80 and o = 20, and a…

A: We have given that,  n = 20,  μ= 80 and σ= 20

Q: If your null and alternative hypothesis are: H0:μ=72 H1:μ≠72 Then the test is: two tailed left…

A: Given, H0:μ=72H1:μ≠72

Q: A psychologist conducted a study on size of a town and the high school drop out rate. A left tailed…

A: Given that the left tailed hypothesis was conducted on r, the correlation coefficient which decides…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: It is given that, The proportion of high school seniors who felt that "getting rich" was an…

Q: H0:p=0.41 Ha:p≠0.41 Calculate the test statistic, rounde

A: Let x be the random variable such that the number of people who said they would watch one of the…

Q: Given H 0: us 25 and H a: u> 25, determine whether the hypothesis test is left-tailed, right-tailed,…

A: Given, H0:µ≤25 Ha:µ&gt;25

Q: When testing the hypothesized equality of two population means, the implied null hypothesis is…

A:

Q: Set up a hypothesis test so that the rejection of H, will allow you to conclude that the proportion…

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for…

Q: Which of the following is not an acceptable approach to express a null hypothesis? Ho: Hi- H2 =0…

A: In statistics, the population consists the entire set of entities which are under study, whereas, a…

Q: Which of the following is the appropriate null and alternative hypotheses for the test described in…

A:

Q: Recently, a health organization estimated that the flu vaccine was 68% effective against the…

A: Claim:- Current flu vaccine is less effective against the virus. Null and Alternative hypothesis…

Q: Set up the hypotheses for the one-mean t-test. Ho: 비 Ha: H V A

A:

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: From the provided information, The proportion of high school seniors who felt that “getting rich”…

Q: recent Super Bowl, a TV network predicted that 50 % of the audience would express an interest in…

A: Here from the given information we want to find the Z test statistics.

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: The hypothesized proportion is 0.72.

Q: In a hypothesis test of the difference between two population means if the probability of type 2…

A: Given : In a hypothesis test of the difference between two population means , the probability of…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: Let p be the  proportion of high school seniors who felt that "getting rich" was an important…

Q: A golf pro shop is deciding whether to carry a new, more expensive line of golf balls that claim to…

A: Given, A golf pro shop is deciding whether to carry a new, more expensive line of golf balls that…

Q: State the null and alternative hypotheses. O Hoi HA HB - HC H: Not all the population means are…

A: Given:     Treatment     A B C Blocks 1 10 9 8 2 12 6 4 3 18 15 14 4 20 18 18 5 8 7…

Q: A researcher believes that the reading habits of men and women are different. He takes a random…

A: From the given information, let X1 be the number of women read at least one book last month. Let X2…

Q: computer programmers, it iš béliévéd The average hourly wage of computer programmers with 2 years in…

A: In hypothesis testing, a null hypothesis can be defined as the hypothesis of no difference or…

Q: A study done on a marriage counseling course showed that the proportion of couples for which the…

A: Claim:The proportion of couples for which the communicationprogram can prevent divorce is less than…

Q: A lot of people have difficulty in getting good sleep of more than 7 hours per day. An investigator…

A: Solution: From the given information, n=25,

Q: The alternative hypothesis, denoted by H1, represents the opposite of the null hypothesis and is…

A: Introduction: Denote the null hypothesis as H0, and the alternative hypothesis as H1.

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the…

A:

Q: For which hypothesis is the symbol H1 ​ used?

A: Null hypothesis is the statement about the population parameter such a hypothesis is usually of no…

Q: Although the null hypothesis, Ho, is always taken to be an equality, if the alternative hypothesis,…

A:

Q: You carry out a test of the hypothesis described in #1. If the results show that you cannot reject e…

A: test of hypothesis describe   suppose  null hypothesis : there is no significance difference between…

Q: The alternative hypothesis, denoted by Hl, represents the opposite of the null hypothesis and is…

A: Given that  Alternative hypothesis is denoted by H1.

Q: In a one-tail hypothesis test where you rejected Ho only in the upper tail, what is the value is…

A:

Q: In using a t-test to test a hypothesis about the difference between two independent means, the…

A: A t-test is a type of inferential statistic used to determine if there is a significant difference…

Q: In a recent Super Bowl, a TV network predicted that 41 % of the audience would express an interest…

A:

Q: A researcher uses a hypothesis test to evaluate H0: ? = 80. Which combination of factors is most…

A: The null hypothesis is H0: µ = 80.

Q: A student pursuing a degree in English as a second language believes the proportion female factory…

A: Denote pF, pM as the true population proportions of female and male workers, who can’t speak…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.