Question

a hypothesis test produces a t statistic of t=2.3. if the researcher is using a two tailed test with a=0.05 how large does the sample have to bw in order to reject the null hypothesis?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: rrelation coefficient between advertising dollars spent and plained by the relationship between sale...

A: The correlation coefficient between advertising dollars spent and sales is 0.78. That is, r = 0.78

Q: Suppose that X and Y are unknown with E(X) = 20, Var (X) = 4 , E(Y) = 12, and Var (Y) = 16. In addit...

A: It is given that, E(X) = 20, Var (X) = 4 and E(Y) = 12, and Var (Y) = 16 and E(XY) = 248

Q: A medical researcher wants to construct a 99% confidence interval for the proportion of knee replace...

A: a) Given, A medical researcher wants to construct a 99% confidence interval for the proportion of kn...

Q: A market researcher wishes to determine the proportion of American consumers who shop online for dea...

A: Click to see the answer

Q: s (in billions of dollars) of the four wealthiest people in a particular cOu ent from this populatio...

A: Given that the assets of the four wealthiest people in a particular county is, 41,35,34,11 That is, ...

Q: A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes that t...

A: Given, A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes...

Q: 5) If a coin tossed four times, then what is the probability of getting either at least two heads or...

A: Click to see the answer

Q: A student was asked to find a 98% CH data from a random sample of size 0.11 <p< 0,32?

A:     As given, the 98% confidence interval for the proportion of students who take notes is  0.11 &lt...

Q: To help consumers in purchasing a laptop computer, Consumer Reports calculates an overall test score...

A: Here you're given two variables named as Price ($) and Overall score. Let us define the independent ...

Q: Use the given data to find the equation of the regression line. Examine the scatterplot and identify...

A: From given data,   X Y X*Y X*X 10 7.27 72.7 100 9 6.8 61.2 81 11 13.16 144.76 121 10 7.36...

Q: You have a markov chain and you can assume that P(X0 = 1) = P(X0 = 2) = 1/2 and that the matrix look...

A:  P(X0 = 1) = P(X0 = 2) = 12 P=12121323  

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets f...

A: From the provided information, The students are selling tickets for $9 each and will sell 900 ticket...

Q: Source SS DF MS Test Statistic Regression ?? 33 1120.61120.6    Error       490.23490.23   T...

A: The given data is, SStotal = 9244.56, df regression =3 and df total = 15 MS regression = 1120.6 and ...

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to fi...

A: Favorable Cases XX = 7272 Sample Size NN = 233233 The proportion of people who were caught afte...

Q: A fashion designer surveys companies about upcoming seasonal trends for average hem length. He surve...

A: a). If the results are significant in the ANOVA, it means that not all treatment means are significa...

Q: If we have a sample of size 100 with sample mean breaking strength of 1050 pounds from a population ...

A: Sample size (n)=100 Mean breaking strength (x¯) = 1050 pounds Standard deviation (σ)  = 200 pounds C...

Q: Suppose the 20,000 married adults in the U.S. were randomly surveyed as to the number of children th...

A: There are total 20,000 married adults. Among the couple, 10% of couples have no kids, 20% of childre...

Q: Confidence Interval Use the given degree of confidence and sample data to construct a confidence int...

A: Click to see the answer

Q: If we have a sample of size 100 from a population of rope with sample mean breaking strength of 960 ...

A: State the given values. State the Null and Alternate hypothesis.

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 73 mph and ...

A: Click to see the answer

Q: Conduct a hypothesis test for the following problem: A medical researcher says that at least 20% of ...

A: Click to see the answer

Q: Statistics Question

A: The sample proportion of driver who claim to buckle up can be calculated as:

Q: The results from a Pew Research Center Survey revealed that 70% of 456 people surveyed aged 18 to 29...

A: Click to see the answer

Q: A well-known brokerage firm executive claimed that 90% of investors are currently confident of meeti...

A: The following null and alternative hypotheses need to be tested: Ho: p ≥ 0.90Ho:p≥0.90 Ha: p &amp;lt...

Q: Is there a relationship between smoking and alcohol consumption?   No Alcohol Low Alcohol Medium...

A:     No Alcohol Low Alcohol Medium Alcohol High Alcohol Marginal Total Never Smokes 450 205 190 ...

Q: Let x be a random variable that represents the percentage of successful free throws a professional b...

A: (a) Obtain the values of given sums. The values of given sums is obtained below as follows: From the...

Q: Coffee with Meals A researcher wishes to determine the number of cups of coffee a customer drinks wi...

A: The distribution of the number of cups of coffee a customer drinks with an evening meal at a restaur...

Q: Jim Mead is a veterinarian who visits a Vermont farm to examine prize bulls. In order to examine a b...

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want solution...

Q: The accompanying table gives results from a study of words spoken in a day by men and women. Assume ...

A: The given data are:                                         Men:                                    ...

Q: Why is it possible to define the probability of committing a Type I error but impossible to know the...

A: Type I error: The type I error is rejecting the null hypothesis when it is actually true, that is th...

Q: In the following multiple regression equation, what is value of x2 when x1 = 12.5 and ŷ is estimated...

A: From the information, given that   The multiple linear regression equation is, Given that the value...

Q: Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating...

A: Solution: Let X be the random variable defined as the wave height of a storm. The following informat...

Q: If a coin tossed four times, then what is the probability of getting either at least two heads or at...

A: Click to see the answer

Q: Z, a local jazz station, has hired you as a research consultant to determine which demographic group...

A: Given test statistic is 1.99 Degrees of freedom is 2. Hypothesis: The two categories of interest are...

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

A: Null hypothesis: The average attendance at games is not over 523 Alternate Hypothesis(Claim): The av...

Q: In an optical shop, the optician has conducted a survey with his customers with a question “how many...

A: The shop is organizing a private sale and there will be 20 participants.   30% of the interviewees h...

Q: The fish in my pond have mean length 14.73 inches with a standard deviation of 2.27 inches and mean ...

A: From the given information x¯=14.73sx=2.27y¯=4.83sy=0.8r=0.6 Consider, the regression equation,     ...

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is significantl...

A: 1. It can be considered that the sample is collected using a random method.

Q: Let x represent the average annual salary of college and university professors (in thousands of doll...

A: Hey there! Thank you for posting the question.  Since you have posted a question with multiple sub-p...

Q: Given the interval estimate for the mean (9.2, 18.8), the point estimate for the mean is and the mar...

A: The given interval estimate for the mean is (9.2, 18.8).

Q: Drug manufactures of Drug X, which was released on the market 5 years ago to treat Crohn’s disease, ...

A: Given: 1 individual who developed the disease at the 1-year mark 3 individuals who developed the dis...

Q: Find the standard deviation of the sampling distribution of sample means using the given information...

A: Click to see the answer

Q: I don't understand how to complete this. please show step by step

A: Given data, 11,5,14,3,10,9,8,9. The mean number of sick days an employee takes per year is believed ...

Q: The fish in my pond have mean lenth 14 inches with a standard deviation of 2 inches and mean weight ...

A: Solution: Given information x= length and y = weight x=14 inches Sample mean of lengthy=4 pounds Sam...

Q: Statistics Question

A: 1) margin of error is given by , E=(Upper confidence limit - Lower confidence limit)/2

Q: A study was conducted to determine whether magnets were effective in treating pain. The values repre...

A: Given information   n x̅ S Sham 20 0.41 1.27 Magnet 20 0.49 0.93