With a = .05, what is the critical value for a paired-sample, one-tailed t-test with n 15? O t= 2.131 Ot=2.145 O t= 1.761 O t= 1.753

Q: or the original sample n= 500 Atlanta commute times has a mean of x= 29.11. The standard error from…

A: Given data, n=500 Mean x=29.11 standard error is =0.917 find 90%, 95%, and 99% confidence intervals…

Q: When interpreting F (10, 29) = 4.78, p > 0.05, how many subjects were tested in this simple one-way…

A: The F-statistic is a ratio of two sample variances, and it is commonly used in hypothesis testing to…

Q: A random sample of 150 people shows an average salary of 371 pesos per day. With a population…

A:

Q: In a random sample of 23 private school teachers in queens county the average teaching experience is…

A:

Q: A repeated-measures study comparing two treatments with n = 4 participants produces Mp 2 and SS = 75…

A: n = 4Md = 2SS = 75We know that,s2=SSn-1s2=754-1s2=25

Q: Salaries of 33 college graduates who took a statistics course in college have a mean, x, of $69,000.…

A: Since we know population standard deviation, use z-distribution to find z-critical value. Find…

Q: The average time taken for your Internet service provider to remotely resolve a trouble ticket has a…

A: It is provided that,Mean (µ) = 4.343Standard deviation (σ) = 3.131.

Q: When the difference between the means of two normal populations is checked using two independent…

A: The test is two independent samples t-test. Here, the population variances are equal. The sizes of…

Q: A large value for chi-square tends to indicate a good fit between the sample data and the null…

A: We know that if the chi-square value is large than the critical value then it will not fit the…

Q: When students use the bus from their dorms, they have an average commute time of 9.463 minutes with…

A: Let X be the commute time for a random studentThe average commute time:  μ = 9.463 minutes   and…

Q: A random sample of 25 people shows an average salary of 371 pesos per day. With a population…

A: Given that  Sample size n =25 Sample mean =371 Population standard deviation =45

Q: The monthly starting salaries of students who receive an MBA degree have a population standard…

A:

Q: By what numerical value should SS be divided in order to compute an unbiased variance?

A: The variance is obtained using ratio of squared deviations and sample size.

Q: When conducting an independent samples t-test, what assumption for Normality is tested?

A:

Q: Which will increase statistical power?     Using a smaller sample     Using a more diverse…

A: Power of the test: The power indicates the probability of the test rejects H0 correctly.

Q: An independent-measures study with n = 5 in each sample produces a sample mean difference of 4…

A: We have to find test statistics.

Q: What is the critical value of a two-sided paired t test with ? = 0.05 and ? = 25?

A: Given that, Sample size n=25 Level of significance α=0.05

Q: What type of test should you use (determine if a direction is predicted, and if the samples are…

A: As per our guidelines, we are allowed to answer first three sub-parts. Please post other parts…

Q: If the obtained sample mean has a z score of 1.69 and if a = .05, should you reject or fail to…

A: The given z-score is 1.69 and the alpha is 0.05.

Q: The average time taken for your Internet service provider to remotely resolve a trouble ticket has a…

A: Let us define the random variable X as the lengths of the time taken for resolving a trouble ticket…

Q: 13 squirrels were found to have an average weight of 790 grams with a sample standard deviation of…

A: Given that  n=13 , Mean=X̄=790 , Standard deviation=S=8.3 95% confidence interval

Q: Pulse Rate (bpm) 101 66 78 103 80 58 86 93 80 64 44 45 96 77 93 62 88 67 73 81 103 90 62 88 66 105…

A: The random variable X follows normal distribution. A sample of 46 observations is given. We have to…

Q: use a significance level of a=0.05 to test the claim that p1=p2 for two populations. Use the given…

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Q: What is tcrit for a one sample, one tailed t-test, with n=13 and α=0.05

A: given data, one- tailed t- test n=13df=13-1=12α=0.05t-critical value=?

Q: Volunteers who had developed a cold within the previous 24 hours were randomized to take either zinc…

A: " Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: M1= 37 SS1=360 n1=11 M2= 43 SS2=576 n2=10 Assume two failed test and alpha= .05 What is the pooled…

A: Required solution is as given in step:2

Q: A newspaper claims that the mean time spent on physical activities by middle school children in UAE…

A: From the provided information, Sample size (n) = 20 The claim is that the mean time spent on…

Q: pooled variance = 7.37, M1 = 8.17 and M2 = 5.83, what is the value of Cohen's d for this experiment?

A: Given pooled variance = 7.37, M1 = 8.17 M2 = 5.83,

Q: The mean score on the exit examination for an urban high school is 66with a standard deviation of…

A: Given  μ=66, σ=6, n=9  We want to find the sample mean(x̄)

Q: ssuming that a sample (N = 504) has a sample standard deviation of 2.26, what is the estimated…

A: Solution: Given information: n= 504 Sample size  s= 2.26 Sample standard deviation