A melting point test of = 10 samples of a binder used on manufacturing a rocket propellant resulted in x = 154.2 F. Assume thatthe melting point is normally distributed with a = 1.5 "F.For (b) and (c), round your answers to 4 decimal places (e.g. 98.7654). For (d), give an integer answer.(a) Test Ho: H = 155 versus H₁155 using a = 0.01.Ho(b) What is the P-value for this test? Use a z-score with two decimal places. i(c) What is the B-error if the true mean is = 150? Assume that a = 0.01.(d) What value of n would be required if we want < 0.1 when = 150? Assume that a = 0.005.

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Answered: A melting point test of n = 10 samples…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Determine the z-score given the following: (Express your answers in 2 decimal places) 1. P(z
Can you explain and help me solve this on my ti 84? Thank you ex:You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 90 men, and 20% own cats.You sample 170 women, and 90% own cats.Find the proportion of the pooled samples, (pcpc), as a decimal, rounded to two decimal places.
1. What is the P(t < -1.2) with a sample size of 12. 2. What is the P(−2.4<t<2.4)P(-2.4<t<2.4) with a sample size of 15.
(b) x = 46.9 Recall the previously determined values μ = 42, o = 15, and n = 80. Now we are to find the test statistic for a new sample mean, X = 46.9. Use these values to find the test statistic, rounding the result to two decimal places. K-Mo 7 = √n 46.9 = 2.92✔✔ ✓ 15 80 2.92 42 Step 8 An upper tail area should be found since the test statistic, z = 2.92, is positive. The area under the curve to the right of a z-value corresponds to the upper tail area. Recall that the standard normal table gives the area to the left of z-values and the entire area under the curve is 1. Therefore, the upper tail area will be the difference of the whole area, 1, and the area to the left of z = 2.92. Use the standard normal table to find the upper tail area for z = 2.92, rounding the result to four decimal places. area to the right of 2.92 1 area to the left of 2.92 = 1 X
a1
Stoaches are fictional creatures, sometimes mistaken for mome raths. Suppose a two-tailed t-test is conducted to test for a difference between the population means of adult female stoach weights and adult male stoach weights. The female sample has 13 weights, and the male sample has 7 weights. The t-statistic for the test is -0.20542. What is the p-value? (Give your answer to 4 decimal places.) p-value:
vo 12:35 O 54% ª.all 7& O -- M100 Jo If A = and B = and N(A) = N(B) then a = 2 and B = 4 O b. a = 4 and B = 2 Oc. a = -4 and 8 = 2 O d. a = 1 and B = 1
Using either Table G or Calculator, find the P-value for each χ2 test value. (a) χ2 = 39.214, n = 40, two-tailed, (b) χ2 = 8.546, n = 14, left-tailed.
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) X = 17.598 Sx = 16.01712719 n = 50 Click the icon to view a t distribution table. a. What is the number of degrees of freedom that should be used for finding the critical value t12? df = (Type a whole number.) b. Find the critical value t/2 corresponding to a 95% confidence level. ta12 = %3D (Round to two decimal places as needed.) c. Give a brief general description of the number of degrees of freedom. A. The number of degrees of freedom for a collection of sample data is the total number of sample values. B. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values. C. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions…
A large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over the preceding three-year period. Single Policyholders Married Policyholders 721 = 575 n2 = 740 Number making claims = 115 Number making claims = 111 a. Use α = 0.05. Test to determine whether the claim rates differ between single and married male policyholders. z-value p-value We can conclude (to 2 decimals) X (to 4 decimals) that there is the difference between claim rates. b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number.

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