Question-4a. Natural cork in juice bottles is subject to deterioration, and as a result juice in such bottles mayexperience contamination, in a testing of commercial juice bottles, 16 of 91 bottles were consideredspoiled to some extent by cork associated characteristics. Test that the true proportion of allcommercial bottles considered spoiled = 0.15 against that the true proportion of all commercialbottles considered spoiled exceeded 0.15 at level of significance of 0.10. What number of spoiledbottles exceeded to make this null hypothesis is rejected.

Given that Sample size n =91 Favorable cases x =16 Sample proportion p^=x/n =16/91 =0.1758

Answered: Question-4 a. Natural cork in juice…

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...

See similar textbooks

Similar questions

2. The correlation coefficient between temperatures of rice and breakage percentage calculated from two samples of 12 and 16 are 0-8912 and 0.8482 respectively. Do the estimates differ significantly?
Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x=101.13, y=100.45, r=0.890, P-value=0.000, and y=−10.24+1.09x, where x represents the IQ score of the twin born second. Find the best predicted value of y given that the twin born second has an IQ of 101? Use a significance level of 0.05. a. The best predicted value of y is (Round to two decimal places as needed.)
A classic application of correlation involves the association between the temperature and the number of times a cricket chirps in a minute. Listed below are the number of chirps in 1 minute and the corresponding temperature in degrees Fahrenheit. Is there sufficient evidence, at the 5% level of significance, to conclude that there is a linear correlation between the number of chirps in 1 minute and the temperature? 1.State the appropriate critical value you would use to test the significance of the correlation at the 5% level of significance. 2.Make a decision about the following set of hypothesis. H0: The correlation is 0. H1: The correlation is different from 0 3.Draw an appropriate conclusion. 4.State the least squares regression line (equation) 5.The best predicted value for the number of chirps on a day when the temperature is 98.2 is closest to 6.The best predicted value for the number of chirps on a day when the temperature is 78.2 is closest to
A research team wants to investigate the usefulness of relaxation training for reducing levels of anxiety in individuals experiencing stress. They identify 30 people at random from a group of 100 who have "high stress" jobs. The 30 people are divided into two groups. One group acts as the control group they receive no training. The second group of 15 receive the relaxation training. The subjects in each group are then given an anxiety inventory. The summarized results appear below where higher scores indicate greater anxiety. The raw data appear below. Evaluate her experiment using the criteria of p < 0.05. Assume it is a two tailed test. YSou need to perform the 5 steps in Hypothesis Testing. CONTROLLED RELAXED 38 40 35 36 35 32 31 30 28 26 24 21 35 32 30 34 30 32 28 27 22| 22 18 34 22 18 17 17 25 21
9. A study was conducted to determine if the proportion of cars in a given area that do not meet exhaust emission standards has changed from 10 years ago when it was 8%. A test of Ho: p = 0.08 against HA: p 0.08 was performed with a significance level of a = 0.05. Given that the data showed that there was a significant difference in the proportion of cars not meeting emission standards now versus 10 vears ago, which of the following statements is true? (A) The researchers would have reached the same conclusion at a = 0.01 and a = 0.10. (B) The researchers would have reached the same conclusion at a = 0.01, but not at a = 0.10. A 95% confidence interval for the population proportion p would contain 0.08. (С) A 90% confidence interval for the population proportion p would contain 0.08. The correct statement cannot be determined without knowing the P-value. (D) (E)
Above Answer is Wrong, Please Help!
Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 102.36, y = 104.7, r=0.949, P-value = 0.000, and y = 0.27 + 1.02x, where x represents the IQ score of the twin born first. Find the best predicted value of y given that the twin born first has an IQ of 99? Use a significance level of 0.05. Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted value of y is (Round to two decimal places as needed.)
Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x=97.85, y=98.95, r=0.871, P-value=0.000, and y=17.2+0.84x, where x represents the IQ score of the twin born second. Find the best predicted value of y given that the twin born second has an IQ of 104? Use a significance level of 0.05. The best predicted value of y is ?
19.30 (EX) Color blindness: Color blindness, or dyschromatopsia, is a form of genetic deficiency in color perception. The condition is much more prevalent among males than females, pointing to a genetic connection with the X chromosome. The frequency of dyschromatopsia in the Caucasian American male population is about 8%. However, it is thought that this proportion might be smaller among males of other ethnicities. We want to estimate the proportion of Asian American males who are color-blind. If 0.1 was used for p*, in order to obtain a 95% confidence interval with a margin of error no greater than 2%, or 0.02, the sample size has to be at least [1]. Give your answer as a whole number.
Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of measurements yield x=103.36, y=103.45, r=0.928, P-value= 0.000, and y=−7.2+1.07x,where x represents the IQ score of the older child.Find the best predicted value of y given that the older child has an IQ of 106? Use a significance level of 0.05
Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of measurements yield x=100.3, y=101.75, r=0.901, P-value=0.0001, and y=−7.33+1.09x, where x represents the IQ score of the older child. Find the best predicted value of y given that the older child has an IQ of 90. Use a significance level of 0.05.
1) A series of experiments were conducted to determine the effect of air voids on percentage retained strength of asphalt. For purposes of the experiment, air voids are controlled at three levels; low (1-3%), medium (4-6%), and high (7-9%). The data are shown in Table 1. Do the different levels of air voids significantly affect mean retained strength? Use a = 0.05. Table 1: Results of the air voids effect on percentage retained strength of asphalt Air Voids Low Medium High 106 80 78 90 69 80 Retained Strength (%) 103 94 62 90 91 69 79 70 76 88 83 85 92 87 69 95 83 85

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS