what is the test to conduct to answer researc questiion? additionally, calculate values by hand, is the statistically significant?

Q: How many females and males of the sample have satisfying non- academic performance inspite of having…

A: Given information: Total population of first-year optometry students from DDC = 65 20% of the sample…

Q: In a previous year, 56% of females aged 15 years of age and older lived alone. A sociologist tests…

A: From the provided information, Sample size (n) = 700 From which 406 are living alone. Level of…

Q: Why would you use a low alpha?

A: here use basic of hypothesis testing and type 1 and type 2 error

Q: A study on the impact of a 35 mi/hr car crash on the head was conducted on 20 cars classified into 4…

A: 1. The hypotheses are given below: Null hypothesis: H0: There is no significant difference among the…

Q: Researchers were interested in assessing the effects of a new treatment on seasonal affective…

A: Given information: Subject  0 Week 2 Week 4 Week M participant 1 28 45 69 47.33333333 2 32 43…

Q: I forgot to ask based on this information do you think another sample should be taken to see if the…

A: A right-tail t-hypothesis test with two samples assuming equal variance is performed to verify the…

Q: In a mass screening of 1,000 - 65-year-old men, 100 were found to have polyps of the colon. During…

A:

Q: Elina has measured the heights (in cm) of 800 adults from Chile, 400 women and 400 men. She wants to…

A: The Minitab results are obtained as-W-valuep-value1260520.0000

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

A:

Q: Outline the differences between paired and unpaired t-test with examples.

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

Q: A social media website requires its users to create passwords that consist of four alphanumeric…

A: It is given that a password can contain 4 alphanumeric symbols (26 letters or 10 numeric). Hence, to…

Q: ferroni Correc

A: Given,

Q: mean score on stat finals for all Hartnell students is 78/10

A: Given that  The mean score on stat finals for all Hartnell students is 78/100   We know that…

Q: The mean score on stat finals for all Hartnell students is 78/100. Is this a parameter or a…

A: The parameter represent the population .

Q: Write a clear conclusion regarding the association between height in inches and weight in pounds,…

A: Solution: Test for significance of variable height To test the hypothesis Ho:β1=0    VS    Ha:β1≠0…

Q: The Environment Protection Agency wishes to test whether the mean amount of radium-226 in soil in a…

A:

Q: 5a,the DV, statistical test, t-crit, and the blanks of the table

A:

Q: The Congressional Budget office reports that 36% of federal dvilian employees have a bachelor's…

A: The test indicates that the proportion of employees holding bachelor's degrees or higher in the…

Q: How many samples should be selected when the total population is 31 for goldfeld and quandt test to…

A: Goldfeld Quandt test for heteroskedasticity requires to divide the data set (population or sample)…

Q: What is the p value associated with this test statistic

A: Let μ denote the proportion of people in the population of USA adults, who believe that, raising the…

Q: Women athletes at the university of Colorado , boulder have a long term graduation rate of 67%. Over…

A: Given: n= 38 ,x= 21.0 p= 0.67 ,significance level(∝)= 0.05 p̂= 21.0 / 38

Q: Which student has larger Inter Quartile Range (IQR)?

A: IQR= Q3-Q1

Q: When do we use Chi2 Test, i.e. what statistic does it involve?

A: Chi-square test is used for Categorical Variables. It is used to test the significant difference…

Q: The length of fish were measured at 3 different lakes.  Is there evidence to suggest that the…

A: Data is given for Lake (1,2,3) We have to calculate Test statistic We have to tell  Is there…

Q: To measure the effect of microfinance on women empowerment, a random sample of women was taken and…

A: Solution The samples are dependent if the observations are paired as before and after.

Q: he mean time taken to submit an assignment by a student was 20 days according to the previous…

A: Excel can be used to calculate the required sum

Q: 4. A researcher wishes to determine whether the blood pressure of vegetarians is, average, lower…

A: Solution: Given information: n1= 85 Sample size of vegetarian n2= 75  Sample size of non  vegetarian…

Q: Question Help ▼ To test Ho: p= 100 versus H,: p# 100, a simple random sample size of n= 17 is…

A: Denote μ as the population mean.

Q: he data table contains waiting times of customers at a bank, where customers enter a single waiting…

A: Solution: Given information: n= 60 Sample size  σ=1.8 minutes  Population standard deviation…

Q: Suppose that you have created a contingency table comparing the restaurants that students ate at and…

A:

Q: Average daily temperature in degrees fahrenheit for Newark Liberty Internaitonal Airport, Newark NJ…

A: Dataset (as input in excel) Also, the 95% confidence interval for mean temperature for Network…

Q: The Null would be accepted is that correct? 6. State the null hypothesis for variation in…

A: The null hypothesis is regarded as the statement of no difference.  If P-value < level of…

Q: The results of a common standa population mean is 105 and the standard deviation is 30. A subject…

A: A z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: State whether the z-score locates the raw score x within a sample or within a population…

A: Solution: Given data ×=50,        s=5, x̄ =40  To find: Whether the z-score locates the raw score x…

Q: Which two fields of the ANOVA summary table help us find the critical value? Select all that apply…

A: ANOVA is a statistical procedure that is used for comparing means for more than two groups.