Question: The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal standard deviations. Do the data present

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal standard deviations. Do the data present sufficient evidence to indicate that there is a difference in the mean for the two populations?

(a) Use the ANOVA approach to test the appropriate hypotheses. Use Î± = 0.05.
(b) Test the appropriate hypothesis by using the two-sample t-test for comparing population means. Compare the value of the t-statistic to the value of the F-statistic calculated in part (a).

Sample 11 2 33 1 2 1 31 Sample 2 2 5 2 43 1 23 3

Step by Step Solution

★★★★★

3.47 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a We need to test vs From the random sample we obtain the foll... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

610-M-S-V-A (1947).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The following information is obtained from two independent samples selected from two normally distributed populations. n1 = 18 1 = 7.82 1 = 2.35 n2 = 15 2 = 5.99 1 = 3.17 a. What is the point...

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal variances. Test at the 2% significance level whether 1 is...

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal variances. Construct a 95% confidence interval for the...

5. You are given the null hypothesis. Select the correct alternative hypothesis. a)H 0: =9.5hours,what is H 1? A.left-tailed test B.right-tailed test C.two-tail test b)H 0: =$105, what is H 1?...

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal standard deviations. Sample 1 13 14 9 12 10 5 10 9 12 16...

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal standard deviations. n1 = 21 1 = 13.97 s1 = 3.78 n2 = 20...

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal standard deviations. a. Let µ1 be the mean of...

The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal standard deviations. a. Let 1 be the mean of population 1...

The following information was obtained from two independent samples selected from two normally distributed populations with unequal and unknown population standard deviations. n 1 = 14 x 1 = 109.43 s...

The Wisco Company has a process cost system. All materials are placed in process when the process is first begun. At the beginning of September, there were no units of product in process. During...

Diversified Technologies Ltd. (DTL) makes four types of products, each type to be sold to different types of clients. For example, one product is sold exclusively to automobile repair shops, whereas...

Q 1 . Explain the Formula for Calculating the US Income Tax for Individuals with Numerical Example Q 2 . Explain the Differences between Itemized and Standard Deductions Q 3 . Under US Income Tax Law...

2. What problem did Disneyland face as it began to draw more visitors to the theme park? How was it overcome?

The graph of v = f(x) is given. Match each equation with its graph and give reasons for your choices. (a) y = f (x - 4) (b) y = f (x) + 3 (c) y = 1/3 f(x) (d) y = - f (x + 4) (e) y = 2f(x + 6) en

The graph of f is given. Draw the graphs of the following functions. (a) y = f (x + 4) (b) y = f (x) + 4 (c) y = 2f(x) (d) y = -½(x) + 3

The graph of f is given. Use it to graph the following functions. (a) y = f(2x) (b) y = f(1/2 x) (c) y = f(-x) (d) y = -f(-x)

Scanlin, Inc., is considering a project that will result in initial aftertax cash savings of $1.73 million at the end of the first year, and these savings will grow at a rate of 3 percent per year...

Solve for the probability functions In each situation below, is it reasonable to use a binomial distribution for the random variable X? Give reasons for your answerin each case. {a} A random sample...

For December 31,20xx, the balance sheet of the Gardner Corporation is as follows: Sales for 20XY were $293.000, with cost of goods sold being 63 percent of sales. Amortization expense was 14 percent...