Make a null hypothesis and alternative hypothesis on the following research situations: a) To study how the English writing skills of pupils whose language teach

Q: A court holds jurisdiction over five counties, and the juries are required to be made up in a…

A: Solution To find the p value we will use z test for single proportion.

Q: Is the null hypothesis Ho rejected at the a = 5% level?

A: here given data of blood type of americans

Q: A national TV program asks viewers to ring in regarding whether they think Scott Morison is doing a…

A: A voluntary response sampling represents a poll or survey in which opinions are selected from a…

Q: Mars, Inc. claims that 20% of its M & M plain candies out of a sample of 100 are blue. Does your…

A: The appropriate Null and Alternative Hypotheses are given below:   Null hypothesis:   H0: p =0.20.…

Q: What is the​ p-value if, in a​ two-tail hypothesis​ test, ZSTAT=+1.16​?       ​p-value=

A:

Q: are conducting a study to see if the accuracy rate for fingerprint identification is significantly…

A: A hypothesis is said to be left tailed, if the population parameter is less than some hypothesized…

Q: If the equality term in the null hypothesis involves ≤ or ≥, then which test would be appropriate?

A:

Q: As a general guideline, the research hypothesis should be stated as the _____.   a. null…

A: Null hypothesis:          It defines that there is no significant difference between the two…

Q: TV stations use ratings to decide which shows to keep or cancel. Therefore, the A. C. Nielsen…

A: Given that the TV stations use ratings to decide which shows to keep or cancel. Therefore, the A. C.…

Q: 1. create a problem statement; 2. formulate the null and alternative hypothesis; 3. select the level…

A: Situations:  1)To test effect of special diet on female in our area. 2) To test monthly expenditure…

Q: 1. a) What are the two decisions that you can make from performing a hypothesis test? b) In your own…

A: (a) Two decisions that can be made based on the result of a hypothesis test are: Reject the null…

Q: a) Identify the hypothesis null and alternative (Ho and Ha). b) Compute test statistic (Z).

A: Given: Population mean, μ =5Population standard deviation, σ=3Sample size, n=40Sample mean, x¯=4

Q: 2. Identify the appropriate hypothesis test for each of the following research situations labeled…

A: a) A researcher conducts a developmental study to determine if there is a significant difference in…

Q: Define the Alternative Hypothesis and give an example.

A: Alternative hypothesis say that there is statistically significant relationship between two…

Q: Researchers were interested in whether older parents had different parenting styles when compared to…

A: It is given that researchers were interested in whether older parents had different parenting styles…

Q: The shop floor manager in a dairy company believes that the milk packaging process unit for 1 liter…

A: Null hypothesis:  A hypothesis of no difference is called as null hypothesis. It is denoted by H0…

Q: If a CEO claims that .35 of the organization's employees hold an advanced degree, .60 hold a 4-year…

A: here use test of comparing Proportion

Q: When a claim or assertion is involved in hypothesis testing, the nu1l hypothesis is always the same…

A: If the original claim includes equality (<=, =, >=), it is the null hypothesis and If the…

Q: Why is "Ho: "M1 = M2" not a proper null hypothesis?

A: In general the null hypothesis states that there is no significant difference between M1 and M2.

Q: For this hypothesis test, which would be the appropriate alternative hypothesis

A: Test is that whether people have better vision in their dominant eye compared to their non-dominant…

Q: A researcher conducts a research study to examine whether there is a difference between two…

A: A null hypothesis is a type of hypothesis used in statistics that indicates that there is no…

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

A: Givenabout 22% of the american young people between the ages of 12 and19 are obeseclaim is that the…

Q: Referring to Table 1, the null hypothesis should not be rejected:   Question 4 options:   1)  True…

A: Given:

Q: What is the null hypothesis H0 and the alternative hypothesis H1?

A: Here p=76%              =76/100            =0.76 So null and alternative hypothesis is  Null…

Q: Utilizing the previous table: A sample of 25 cities have been classified as high or low on their…

A:

Q: Create two problems in testing hypothesis. Determine the given and formulate the null and…

A: Problem No. 1 A researcher claims that the mean weight of a competitor's box of ice cream is less…

Q: Consider the following set of hypotheses and determine whether or not they are valid. If they are…

A: Given: H0: mu = 23 H1: mu = 27

Q: A. Look for the definitions of the following terms related to hypothesis testing.  1. Null…

A: There are two types of hypotheses: one is the null hypothesis and the other is the alternative…

Q: If you use a 0.05 level of significance in a two tail hypothesis test, what decision will you make…

A: According to the provided information, level of significance  (α) = 0.05 z = 2.21 The z-critical…

Q: If a researcher does not uncover sufficient evidence for a treatment effect in a hypothesis test,…

A: When , p<0.05 we reject the null hypothesis and conclude that there is not sufficient evidence…

Q: 4. Unfortunately it is impossible to avoid making errors, and depending on how you set up your…

A: 4) Type I error is the probability of rejecting the null hypothesis which is actually true. Type II…

Q: In Exercises 5–20, conduct the hypothesis test and provide the test statistic and the P-value and/or…

A: Note: the P-value of the test statistic is obtained using MINITAB. According to Mendel’s concept,…

Q: Under what circumstances is it advisable to switch to a between-subjects design instead of using a…

A: Introduction: A between-subjects design is one in which every subject is assigned to exactly one…

Q: When using the 4 step hypothesis testing method, the alternative hypothesis __________? a. is…

A: When using the 4 step hypothesis testing method, the alternative hypothesis __________

Q: If the subjects receiving a treatment in an experimental study do not know what treatment they are…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: 8) A survey of 1250 people was conducted asking U.S. adults if they approve of the job that the…

A:

Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

A: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…

Q: In hypothesis testing, when should we use alpha and beta?

A: In Hypothesis testing alpha ɑ = It is a type 1 error, i.e. Rejecting the null hypothesis when it is…

Q: The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…

A: The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…

Q: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the…

A: Test is that whether the mean hourly wage has changed this year. The type II error is accepting the…

Q: The Consumers Risk (B) is defined as a Type II error and occurs when we accept the Null Hypothesis…

A: Type II error is that type of error that occurs when the null hypothesis is accepted even though it…

Q: 8 - An advertisement firm is making a new marketing strategy and selling rates are being considered.…

A: There are two independent samples which are existing strategy and new strategy. Both samples follows…

Q: gender is the independent variable of a quasi-experiment, this experiment must have a…

A: Quasi experiment is the experiment in which researcher intervenes the experiment by assigning the…

Q: A newsletter publisher believes that 29% of their readers own a laptop. Is there sufficient evidence…

A: Let p be the proportion for readers own a laptop  Given p=29%=0.29, level of significance ɑ=0.05

Q: Two ad agencies want to understand issues that are important to students. Agency A will interview 50…

A: Agency A is selecting 50 random students from school enrollment data Agency B is selecting 50…

Q: State whether it is a correctly stated hypothesis testing problem and why. (a) Ho: µ = 25, H1: µ ≠…

A: We have given that,  State whether it is a correctly stated hypothesis testing problem and why. (a)…

Q: A researcher claims that less than 40% of the registered voters favor free trade agreements. Specify…

A:

Q: Under what circumstances is it advisable to switch to a between-subjects design instead of using a…

A: Between-subjects (or between-groups) study design different people test each condition, so that each…

Q: If I conduct a hypothesis testing with type 1 error set at 0.5 and a resulting p-value of 0.3 what…

A: Solution: type 1 error set at 0.5   p-value of 0.3  To find: conclusion of the test

Q: Can you state the null hypothesis H0 and the alternative hypothesis H1?

A: It is given that the proportion p of residents in a community who recycle has traditionally been…

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.