QUESTION 35 "A research report describing the results from a independent t-test included the following statement: t(8) = 2.78, p = .04. Based on this report, using a standard alpha level, is this effect statistically significant?" O "no, because p must be less than .001 to be statistically significant" O "yes, because p must be less than .001 to be statistically significant" O "no, because p must be less than .05 to be statistically significant" O "yes, because p must be less than .05 to be statistically significant"

Q: QUESTION 47 A independent sample t-test with a df = 33 resulted in an observed t = 4.29. What would…

A: Given that, an independent sample t-test with a df = 33 resulted in an observed t = 4.29.

Q: The heights (in inches) of adult males in the United States are believed to be normally distributed…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: QUESTION 14 Solve the problem. The table shows the number of smokers in a random sample of 500…

A: State the hypotheses.

Q: QUESTION 40 A randomized controlled trial is run to evaluate the effectiveness of a new drug for…

A: From the given information,A total of 250 children randomized, per each group 125.For a group one…

Q: A manufacturer of car batteries claims that his product will last at least 4 years on average. A…

A: According to the given information in this question Test statistic is -1.656 At significance level…

Q: Question 5. Statistical inference for two Normal Populations with Known Variances For the test of…

A:

Q: QUESTION 52 "A significant ANOVA determined there was a difference in GPA based on birth oder. Using…

A: Anova is the measure of parametric test. It compare the mean significance between the groups. If…

Q: In 2003, Major League Baseball took steps to speed up the paly of baseball games in order to…

A: Given: sample sizes are: n1 = 94; n2 = 78. Among the games in 2002, x1 = 37 finished in less than 3…

Q: QUESTION 5 A sample of 60 mutual funds was taken and the mean return in the sample was 13% with a…

A: Given  n=60 , Mean=Xbar=13% , Standard deviation=sigma=6.9% mu=11.5% Test statistics =1.68 Critical…

Q: QUESTION 17 A company claimed to have developed a new AAA battery that lasts longer than its regular…

A: As per guideline expert have to answer first question only.  Please upload other questions…

Q: QUESTION 8 An extensive survey in 1970 revealed preschool children spend an average of 6.3 hours per…

A: Hey there! As per our policy we can answer only 3 sub-parts at a time. Please make a new request for…

Q: Question 3 Two methods have been developed to determine the nickel content of steel. In a sample of…

A: a)   The critical t-value at 5% level and 10 degrees of freedom is 2.228, which is more than the…

Q: A pathologist is looking at samples from two groups of individuals: one that received a novel…

A: From the given information, it can be observed that the number of groups is 2.

Q: Question 1 An educator claims that the average salary of substitute teachers in school districts in…

A: (1) State the hypotheses. That is, there is no evidence to conclude that the average salary of…

Q: QUESTION 8 Any basketball fan knows that Shaquille O'Neal, one of the NBA's most dominant centers of…

A: Given that Shaquille O' Neal has overall 53.3% free throw over the course of his career and a simple…

Q: QUESTION 8 "Given the scenario below, what is the critical value? Americans typically take off 5…

A: We are authorised to answer only one question at a time, since you have  mentioned many question so…

Q: Question 2 18% of all college students volunteer their time. Is the percentage of college students…

A: Given that  Sample size n =313 Favorable cases x =47 NOTE:- According to bartleby guidelines expert…

Q: Question 8 Suppose you wish to test the hypothesis that the mean has increases (i.e the population…

A: Population mean μ  Hypothesis  Ho: μ=0 vs H1: μ>0 (claim)  Test statistic t=2.7  Level of…

Q: a) Is there some evidence to suggest that the placebo works? Explain. b) Use the Four-Step-Procedure…

A: Sample proportion = 14/50 = 0.28 n = 50 Population proportion = 0.25

Q: Question 9 The test statistic of z = 0.85 is obtained when testing the claim that p > 0.2. Identify…

A: Given data: Z = 0.85 Given claim: p > 0.2 Significance level = 0.10 To find: p value Decide to…

Q: Historically, the proportion of people who trade in their old car to a car dealer when purchasing a…

A: See the hand written solution

Q: stion 10: You are conducting a study to determine if there is a significant difference between…

A: Given data,n1=60x1=160s1=7n2=55x2=155s2=8Calculate the test statistic t ?

Q: QUESTION 7 Any basketball fan knows that Shaquille O'Neal, one of the NBA's most dominant centers of…

A:

Q: A report states the average temperature for the month of June on a specific tropical island is 98…

A: Data collected from 35 areas on the island showed an average temperature of 95 degrees F. The…

Q: QUESTION 51 "An repeated measures ANOVA is used to evaluate the differences among 7 treatment…

A: Solution Given k=7, n=20 ME=3.42, M2=3.92, M3=3.74~

Q: QUESTION 14 You have measured 35 different quantities (X, Y, of each a large (n-1000) collection of…

A: Consider N be the number of false positives. The number of pairs are 35C2

Q: QUESTION 1 19 of 22 participants (86.36%) from the high-power posing group took a gambling risk to…

A: p-value  according to our guidelines we can answer only first question and rest can be reposted

Q: survey conducted in 2015 by the health center at a university showed that 29% of the students…

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

Q: QUESTION 30 Using basic demographic information (age, household income, marital status, etc.), you…

A: Given that,  a random sample size 184 customers who accepted a special balance transfer offer from a…

Q: Question 1 A mail order firm claims that new procedures enable it to dispatch orders more quickly…

A:

Q: Question 4 MO21. A civil engineer is analyzing the compressive strength of concrete. Compressive…

A:

Q: Question 5. Statistical inference for two Normal Populations with Known Variances For the test of…

A:

Q: QUESTION 5 PART A- Carry out a formal t-test for the association between extroversion and…

A: As per guidelines we will solve first question only, please repost other questions for more answers.…

Q: Question 4 For testing the difference between two population proportions, the pooled proportion…

A: Given problem Given that   For testing the difference between two population proportions, the…

Q: Question 4 AAA batteries are widely used in small electronoic devices. The capacity of batteries…

A:

Q: Question 6. Inference on the variance of a normal population. In a random sample from a normal…

A: 6. Decision-based on the confidence interval.

Q: Only 11% of registered voters voted in the last election. Will voter participation change for the…

A: Solution: 21. Let X be number of registered voters will vote in the upcoming election and n be the…

Q: QUESTION 17 A survey of 80 men found that an average amount spent on St. Patrick's day of $48 with…

A: We have given that  Sample sizes n1=80 , n2=75 and sample means xbar1=48 ,xbar2=42 ,sample stadard…

Q: QUESTION 8 We wish to check that normal body temperature may be more than 98.6 degrees for a certain…

A:

Q: UESTION 4 PART A- What is the standard error of the correlation coefficient for the association of…

A: Given: n = 17 Formula Used: Correlation coefficient r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2 Standard error =…

Q: sample of colored candies was obtained to determine the weights of different colors. The ANOVA table…

A: Given : ​Source: ​DF: ​SS: ​MS: Test​ Stat, F: Critical​ F: ​P-Value:…

Q: QUESTION 20 A treatment for anxiety is found to demonstrate a consistent reduction of anxiety…

A: Introduction: The study revealed that a treatment for anxiety helped in a consistent reduction of 2…

Q: We have randomly selected 30 students from Section 1 and 25 students from Sections 2 of MSCI course…

A: Degree of freedom of section 1 df1 = 30 - 1 = 29 df2 =25-1 = 24 dftotal = 29+24 = 53

Q: Question 2: a. Calculate the probability of a Type Il error for the following hypotheses when u =…

A:

Q: QUESTION 41 "A nutritionist measured the possible reduction in the mean weight of a samplen=11…

A: Let µ1mean weight before and µ2 mean weight after. Ho: µ2- µ1=0 and H1: µ2-µ1<0

Q: Question 3 Two methods have been developed to determine the nickel content of steel. In a sample of…

A: Given information: For the first sample: n1=5, x¯=3.16 and sx=0.042. For the second sample: n2=5,…

Q: An executive believes that no more than 79% of the company’s employees take all of their vacation…

A: The hypothesized proportion is 0.79.