ZuoTi.Pro
Question

b Statisti 1 pl Help region, and (d) decide whether you should reject or fail to reject the null hypothesis. The samples are random and independent Claim μι < μ2, α:001. Sample statistics: x,-1220, n1-45, x2-1200, and n2 85 Population statistics: σ 1 80 and σ2-100 (a) The test statistic for μ1-y2 is (b) The standardized test statistic for μ1-μ2 is-]. (Round to two decimal places as needed) (c) Is the standardized test statistic in the rejection region? O Yes r Contents nch Video No (d) Should you reject or fail to reject the null hypothesis? ,1 Ho At the 1% significance level, there is ▼| evidence to support the claim. Reject Fail to reject nch Click to select your answ Office Hours

(d) Should you reject or fail to reject the null hypothesis? Ho At the 1% significance level, there is evidence to support the claim. not enough) More enough Click to select your answer(s)

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1


Answer Date: 21/01/2019 To test the hypothesis is that the population mean l is less than population mean 2 at 190 significancelevel The null and alternative hypothesis is, The z-critical value is, From the standard normal table, the z-critical value for left-tailed at 99% confidence is 2.33. The z-critical value is - 2.33 a) stics for difference between two population mean is z due to population standard deviation oftwo population are known which are 80 and 100.b) The z-test statistics is, n n2 (1220-1200)-0 802 12002 45 85 The z-test statistics is 1.24. c) The standardized test statisties is not fal in rejection region due to 2-test statisties is 1.24 less thanz-critical value which is-2.33d) The z value corresponds to sample statistics is not falls in the critical region, so the null hypothesis is not rejected at 1% level of significance. There is insufficient evidence to naieate ssighincantdan popudaticen mein 2 The resuat ia

0 0
Add a comment
Know the answer?
Add Answer to:
b Statisti 1 pl Help region, and (d) decide whether you should reject or fail to...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Question Help * For the given data, (a) find the test statistic (b) find the standardized...

    Question Help * For the given data, (a) find the test statistic (b) find the standardized test statitic, ( should reject or tall to reject the null hypothesis. The samples are random and independent. the rejection region, and (d) decide whether you c) decide whether the standardized test statistic is in nh"P2, α:001 Sample statistics: x.-1225, n.-45, x2-1195. and n2-65 Population stabsics o, so ando, 100 (a) The test statistic for μ1_P2 b) The standardized test statistic ftor p1-P2 (Round...

  • For the given data, (a) find the test statistic, (b) find the standardized test statistic, (c)...

    For the given data, (a) find the test statistic, (b) find the standardized test statistic, (c) decide whether the standardized test statistic is in the rejection region, and (d) decide whether you should reject or fail to reject the null hypothesis. The samples are random and independent Claim: <H2, a=0.01. Sample statistics: x = 1235, n = 30, X2 = 1205, and n = 60. Population statistics: 6 = 70 and 62 = 100. (a) The test statistic for ,...

  • For the given data, (a) find the test statistic, (b) find the standardized test statistic, (c)...

    For the given data, (a) find the test statistic, (b) find the standardized test statistic, (c) decide whether the standardized test statistic is in the rejection region, and (d) decide whether you should reject or fail to reject the null hypothesis. The samples are random and independent , a = 0.01. Sample statistics: x = 1235, n 40, x2 = 1195, and n2 = 70. Population statistics: o1 65 and a2 120. Claim: (a) The test statistic for -H2is (b)...

  • 14 of 19 (14 complete) This Test 19 pts pos Overview, question 14 of 19, 14...

    14 of 19 (14 complete) This Test 19 pts pos Overview, question 14 of 19, 14 complete Question Help Is the $9000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At α 0.10, what should you conclude? ce between the mean annual salaries of statisticians in Region 1 and Region 2 more than Region 1 x1 $67,100 o, $8975 n1 47 Region 2 x2 $61,000 σ2...

  • The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject...

    The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject H when the level of significance is (a) a= 0.01, (b) a 0.05, and (c) a0.10. P 0.0749 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? O A. Reject H because the P-value, 0.0749, is greater than a=0.01 O B. Fail to reject Ho because the P-value, 0.0749, is less than a = 0.01 O C. Reject...

  • The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject...

    The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject He when the level of significance is (a) a = 0.01, (b) a = 0.05, and (C) a = 0.10. P = 0.0695 (a) Do you reject or fail to reject He at the 0.01 level of significance? O A. Fail to reject H, because the P-value, 0.0695, is greater than a = 0.01. O B. Fail to reject H, because the P-value, 0.0695,...

  • Use a t-test to test the claim about the population mean μ at the given level...

    Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ z 8300; α= 0.10 Sample statistics: x= 8100, s= 470, n= 22 18. What are the null and alternative hypotheses? ○ A. H0:1128300 O c. Ho: μ#8300 O B. Ho: μ#8300 Ha: μ = 8300 D. Ho: μ 8300 Ha: μ > 8300 Ha: μ < 8300 Ha:...

  • Use a t-test to test the claim about the population mean μ at the given level...

    Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ# 25; α:0.05 Sample statistics: x 29.9, s-44, n 11 What is the value of the standardized test statistic? The standardized test statistic is(Round to two decimal places as needed.) What is the P-value of the test statistic? P-value (Round to three decimal places as needed.) Decide whether to...

  • Given in the table are the BMI statistics for random samples of men and women. Assume...

    Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. Male BMI Female BMI μ μ1 μ2 n 45 45 x 27.3958 24.7599 s 7.837628 4.750044 a. Test the claim that males and females have...

  • 1.13 For the given data, (a) find the test statistic, (b) find the standardized test statistic,...

    1.13 For the given data, (a) find the test statistic, (b) find the standardized test statistic, (c) decide whether the standardized test statistic is in the rejection region, and (d) decide whether you should reject or fail to reject the null hypothesis. The samples are random and independent. Claim. ? 1 ? 2, ?-o05. Sample statistics: x1-16, s,-1.1. n1 : 50 and x2 13, s2 31,7, n2-50 -3 196 196 (a) The test statistic is

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT