Answered: 10 4 10 -8 -6 -4 -2 4 8. 10 8- 10 Find… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.5: The Binomial Theorem

Problem 16E

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10
9.
4
10 -8
-6 -4 -2
4
8.
10
8-
10
Find the slope of the line.
Slope = m =
Enter your answer as an integer or as a reduced fraction in the form A/B.
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Suppose that a researcher is interested in the average standardized test score for fifth graders in a local school district. The fifth graders at a specific school would comprise a ___________ and their average test score would be a ___________.
Suppose that 95% of the bags of certain fertilizer mix weigh between 49 and 53 pounds. Averages of three succesive bags were plotted, and 47.5% of these were observed to lie between 51 and X pounds. Estimate the value of X. State assumptions you make and say whether these assumptions are likely to be true for this example.
Consider that a researcher is attempting to reduce the expected distance between M and µ as much as possible when conducting a research study. One thing they can do is _____.
A farmer estimates that 4% of the 1,400 fruit trees on his farm will fail to produce fruit, with a margin of error of 2.5%. Based on this information, which statements are true? Select all that apply. Because 4% of the fruit trees will fail to produce fruit, the farmer should calculate 4% of 1,400. Then, he should subtract 2.5% of that number to find the low end of the range. He should also add 2.5% to that number to find the high end of the range trees that fail to produce fruit. Between 53 and 57 trees can be expected to fail to produce fruit. Because there is a margin of error of 2.5%, the farmer should calculate 2.5% of 1,400 to find the high end of the range of trees that fail to produce fruit. The lowest number of trees that fail to produce fruit is simply 0. Between 0 and 35 trees can be expected to fail to produce fruit. Because there is a margin of error of 2.5%, between 1.5% and 6.5%6.5% of the fruit trees will fail to produce fruit. The farmer should calculate 1.5%…
According to a recent report, 12% of all adults eat pizza with a knife and fork. A researcher believes this claimed value is incorrect. When she conducts her own survey of a random sample of adults, she finds that 8% of the adults in her sample report eating pizza with a knife and fork. Dividing 8 by 100 will give the researcher the
Strack, martin and Stepper (1988) reported that people rate cartoons as funnier when holding a pen in their teeth (Which force them to frown.) a researcher attempted to replicate this result using a sample of n = 30 adults between the ages of 32-37. For each person, the researcher recorded the difference between the rating obtained while smiling and the rating obtained while frowning. On the average cartoons were rated as funnier when the participants were smiling, with an average difference of 2.6 with SS = 200. a) Do the data indicate that the cartoons are rated significantly funnier when the participants are smiling? Use a two tailed test with α = 0.05. (Use the four logical steps in hypothesis testing) b) Compute for r2 to measure the size of the treatment effect. c) Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research paper.
Suppose that we identify 155 women 50 to 54 years of age who have both a mother and a sister with a history of breast cancer. 18 of these women themselves have developed breast cancer at some time in their lives. If we assume that the proportion of breast cancer cases in women whose mothers have had breast cancer is 8%, does having a sister with the disease increase the risk? Find the p-value.
Q9: Assume that a researcher wants to estimate the proportion of “A” grade scorers in STAT101 course for the population of SEU students in 2020. Assume also that the proportion of “A” grade scorers in 2020 is not known. How many SEU students must be surveyed from STAT101 course in order to be 90% confident and the margin of error should not exceed two percentage points? (Given zα/2 = 1.64). 1- 1821 2- 1781 3- 1618 4- 1681
Suppose that a manufacturer is testing one of its machines to make sure that the machine is producing more than 97% good parts (H0: p = 0.97 and Ha : p > 0.97).The test results in a P-value of 0.102. In reality, the machine is producing 99% good parts.What probably happens as a result of our testing? We correctly fail to reject H0.We reject H0, making a Type I error. We correctly reject H0.We fail to reject H0, making a Type I error.We fail to reject H0, making a Type II error.
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