The Journal de Botanique reported that the mean height of Begonias grown while being treated with a particular nutrient is 40centimeters. To check whether this is still accurate, heights are measured for a random sample of 13 Begonias grown while being treatedwith the nutrient. The sample mean and sample standard deviation of those height measurements are 48 centimeters and 11centimeters, respectively.Assume that the heights of treated Begonias are approximately normally distributed. Based on the sample, can it be concluded that thepopulation mean height of treated begonias, µ, is different from that reported in the journal? Use the 0.05 level of significance.Perform a two-tailed test. Then complete the parts below.Carry your intermediäte computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H.Ho :0H:0(b) Determine the type of test statistic to use.(Choose one) ▼O=0OSO(c) Find the value of the test statistic. (Round to three or more decimal places.)O

Given that Hypothesized Population Mean (\mu)(μ) = 4040 Sample Standard Deviation (s)(s) =…

Answered: (a) State the null hypothesis Ho and…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t= 1.566 (b) t=0 (c) t= 1.497 (d) t= - 1.571 6=1.546 (a) For t= 1.566, should you reject or fail to reject the null hypothesis? O A. Fail to reject Ho, because t 1.546. O C. Reject Ho, because t> 1.546. O D. Reject Ho, because t 1.546. O C. Reject Ho, because t>1.546. O D. Fail to reject Ho, because t<1.546. (c) For t= 1.497, should you reject or fail to reject the null hypothesis? OA Fail tn raiert H. haraiea t<1 KAR Click to select your answer. esc @ # $ * 3 4 5 6 8 * C0
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Please help me with this one, show the step by step formula pls.
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p=0.7 versus H: p> 0.7 n3D200, x = 150, a=0.05 Click here to view page 1 of the table. Click here to view page 2 of the table. Calculate the test statistic, Zo- Zo = (Round to two decimal places as needed.) Identify the P-value. P-value D (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. O A. Do not reject the null hypothesis, because the P-value is less than a. Do not reiect the null hvnothesis hecauSe the Pavalue is areater than o Click to select your answer(s). M12 Ch 10 Test, MML (part 2 of 2)
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p=0.5 versus H: p>0.5 n= 100; x= 60; a= 0.01 Click here to view page 1 of the table Click here to view page 2 of the table. Calculate the test statistic, zo- (Round to two decimal places as needed.)
ay V An industrial plant wants to determine which of two types of fuel, electric or gas, is more cost efficient (measured in cost per unit of energy). Independent random samples were taken of plants using electricity and plants using gas. These samples consisted of 12 plants using electricity, which had a mean cost per unit of $66.99 and standard deviation of $8.75, and 14 plants using gas, which had a mean of $58.50 and standard deviation of $8.46. Assume that the populations of costs per unit are normally distributed for each type of fuel, and assume that the variances of these populations are equal. A Can we conclude, at the 0.10 level of significance, that μ₁, the mean cost per unit for plants using electricity, differs from μ₂, the mean cost per unit for plants using gas? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of…
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p = 0.8 versus H₁: p > 0.8 n = 125; x = 105; α = 0.1 Click here to view page 1 of the table. Click here to view page 2 of the table. Calculate the test statistic, Zo. Zo (Round to two decimal places as needed.) Identify the P-value. = P-value = (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. A. Do not reject the null hypothesis, because the P-value is less than a. B. Do not reject the null hypothesis, because the P-value is greater than α. C. Reject the null hypothesis, because the P-value is greater than a. O D. Reject the null hypothesis, because the P-value is less than α.
The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the level of significance is (a) a= 0.01, (b) a = 0.05, and (c) α=0.10. P=0.1123 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? ve this OA. Fail to reject Ho because the P-value, 0.1123, is less than α = 0.01 OB. Reject Ho because the P-value, 0.1123, is less than α=0.01. OC. Fail to reject Ho because the P-value, 0.1123, is greater than α=0.01. OD Reject Ho because the P-value, 0.1123, is greater than a = 0.01. Get more help - Q Search 16 4- 6 17 W & J+ 00 * 90 00 f9 ( f10 Janette Z 187 x
(c) Fort= 1.653, should you reject or fail to reject the null hypothesis?
A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 215s high school seniors in his random sample, 153 believe that "getting rich" is an important goal. Can he conclude, at the 0.1 level of significance, that the proportion has indeed changed? 00 Perform a two-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.)
You are conducting a multinomial hypothesis test for the claim that all 5 categories are equally likely to be selected. Complete the table. Category ObservedFrequency ExpectedFrequency SquaredPearsonResidual A 20 B 16 C 17 D 8 E 19 What is the chi-square test-statistic for this data?χ2=Report all answers accurate to three decimal places.
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.9 versus H1: p>0.9 n=200; x=190; α= 0.05 Calculate the test statistic, z0.

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(a) State the null hypothesis Ho and the alternative hypothesis H. Ho : 0 H :0 (b) Determine the type of test statistic to use. (Choose one) O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) Ix