To test whether the variances are equal, the p-value is calculated as p=0.008 based on the test statistics. What is the correct conclusion? Reject null (H0) hypothesis with α = 0.0005 Reject null (H0) hypothesis with α = 0.001 Reject null (H0) hypothesis with α = 0.005 Reject null (H0) hypothesis with α = 0.01

Q: Suppose you have conducted a two tailed hypothesis test for the population mean where the population…

A: Given : Sample size (n) = 8 Test statistic = -1.70 α = 0.10

Q: of n = 16 scores with a sample variance of s2 = 64 has an estimated standard error of 4 points.​ how…

A: Given:n=sample size=16s2=sample variance=64 The formula of standard error is:SE=sn

Q: What can be concluded at the αα = 0.05 level of significance?

A:

Q: A clinical trial was planned to compare the effect of a new active treatment with that of the…

A: Given information: n1=11n2=9s1=6.9s2=5.2

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z = - 1.29. Decide…

A: The p-value for a left tailed hypothesis with a test statistic of z=-1.29 is given by…

Q: F from the F table = 3.59 Calculated value of F from the ANOVA table = 81.87 alpha= .05 P-value =…

A: is not an appropriate null hypothesis for this situation.

Q: Independent random samples of n₁ = 18 and n₂ = 13 observations were selected from two normal…

A:

Q: A teacher gives a third grade class of n = 16 a reading skills test at the beginning of the school…

A: a. In this context, the aim is to test whether there is sufficient evidence to conclude that there…

Q: A recent national study of crime reported that the average age of a murder victims is 24.3 years. A…

A: t- test will be used to arrive at the decision if the mean age is different than national mean…

Q: What are the two degrees of freedom of the ANOVA? df1=      df2= Use FF-distribution to find the…

A: 1. A random sample of 40 seeds from each of the 4 species considered. The two degrees of freedom of…

Q: American Theatre owners knew that a certain hit movie ran an average of 84 days or more in each…

A: Hi! Thank you for the question, As per the honor code, we are entitled to answer three sub-parts…

Q: Identify the null hypothesis and alternative hypothesis. (b) Identify the critical​ value(s). Use…

A: Given that sample size n = 20 Sample mean = 706 Population SD = 59 Level of significance = 0.05

Q: In the comparison of two kinds of paim 1-gallon cans of one brand cover on ti deviation of 3 square…

A: Given, Sample 1: sample size (n1) =4  sample mean (x̄1) =  20 sample standard deviation (s1) =  3…

Q: Determine the conclusion to the hypothesis test with a test statistic of -1.98 for two samples with…

A:

Q: Suppose Nielsen would like to test the hypothesis that people spend an average of 156 hours a month…

A: Suppose Nielsen would like to test the hypothesis that people spend an average of 156 hours a month…

Q: To evaluate the effect of a treatment, one sample of n=8 is obtained from a population mean: u=40…

A: From the given information, n=8df=n-1=8-1=7M=35α=0.05 `a. Required hypothesis will be given by as…

Q: samples from two populations, the first of size 31 and the second of size 8.  You calculate that the…

A: Solution

Q: A repeated-measures study with a sample of n=16 participants produces a mean difference of MD=4 with…

A:

Q: To evaluate the effect of a treatment, a sample is obtained from a population (mean =  20). after…

A: Null and alternate hypotheses: The investigator is interested to test whether the population mean is…

Q: 3) To evaluate the effect of a treatment, a sample is obtained from a population (mean = 20). after…

A:

Q: Previously, 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician…

A: Given: p=0.05 Hypothesis: The null hypothesis is given below: H0: p=0.05 The alternate hypothesis is…

Q: Random samples of public opinion survey of 31 men and 41 women regarding BT brinjal were  collected.…

A: We want to test the hypothesis

Q: station was built, the librarian randomly recorded 52 people speaking at the library. Their average…

A: The provided information is as follows:The population mean is .The sample size is .The sample mean…

Q: In 2016, the variance of scores in the class of OMG 321 was 21. Recently, a sample of 20 students…

A: a)   Consider that σ2 is the population variance of scores. It is needed to test whether there has…

Q: Independent random samples were selected from two quantitative populations, with sample sizes,…

A: Solution-: Given: n_1=38, \bar{x_1}=9.6, \sigma_1^2=10.83 , n_2=45, \bar{x_2}=7.3,\sigma_2…

Q: be -2.8. Determine the P-value for the test.

A: Here given, Sample size n = 79 Test statistic = -2.8

Q: The Mars company claims that its Snickers bars contain, on average, at least 21 peanuts. •Suppose,…

A: Solution: Given: μ0=21,n=11,μ=19,σ2=4,α=0.05  ∴σ=2 We want to find what is the power of a test of…

Q: Let X be a random variable with mean u= E(X)=10.33 and variance o = 12.81. Determin 10 -0.800625…

A: It is given that the mean is 10.33 and the variance is 12.81.

Q: You create a new hypothesis test on data X1, ..., X100 with the null assumptions that they are…

A:

Q: An online food delivery service in metro manila claims that the delivery time is not greater than 30…

A: Given :   Population SD (σ) = 3 Sample size (n) = 31 Sample mean (X¯) = 40 Level of significance (α)…

Q: You want to run a 2-tailed independent t-test on sample 1 (M = 24.3, SD = 1.6) and sample 2 (M =…

A: Given, The test is 2 tailed independent samples t-test. Sample 1 has mean X1=24.3, standard…

Q: he human resources department of a large investment bank announced that the number of people it…

A: The claim is that variance exceeds 262.44.

Q: An inventor has developed a new, energy-efficient lawn mower engine. He claims that the engine will…

A:

Q: Suppose we have a random sample of size n=100 drawn from a population with a mean of μ=50 and a…

A: The test statistic is calculated as (x̄-μ0)/(σ/√n), where x̄ is the sample mean, μ0 is the…

Q: Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using…

A:

Q: Let x1, X2, ...,X, be a random sample from a normal population with unknown mean µ and an unknown…

A: The power of the hypothesis test is a measure where it tell us about the probability that a false…