Category Expected Observed A 29% 111 23% 22% B 98 109

Q: This year's statistics class was small (only 15 students)

A: Question: In a study examining the effects of a new medication on blood pressure, a sample of 500…

Q: Evaluate: f(1) Given: F(s)-(s+1)³/54 5.67

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Q: b) Rachel received the following scores on the midterm and final examinations in his introductory…

A: The normal distribution is the bell shaped distribution which is centred at the mean. This is also…

Q: According to past reports 48% of employees own a car. In a random sample of 250 employees, how many…

A: Total no.of employees=250 The percentage of employees own a car=0.48

Q: (ii) Find the p-value. (Give your answer bounds exactly.) <p<

A: (ii) The test statistic is 17.51. The degrees of freedom is, df=k-1=4-1=3 The degrees of freedom is…

Q: A garden contains 40 flowers, 30 of which are red. What is the frequency of red flowers? 0.25 1.0…

A: total no.of flowers=40no.of red flowers=30

Q: Assume that a recent survey suggests that about 79​% of adults have heard of the brand.   n=

A: It is given that a recent survey suggests that about 79​% of adults have heard of the brand.

Q: The coefficient of determination for Data Set B is   ​%.

A: In the given scenario, the data set B was given with two variables (x and y). We need to find the…

Q: 31 of 48% is what?

A: 31 of 48%

Q: a flute instructor examined student progress

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Q: At a university 60% of students take a math course, 50% take an English course. Assume Math and…

A: It is given that at a university 60% of students take a math course, 50% take an English course. It…

Q: A class of 5 students averaged 70% on a given test. A class of 9 students averaged 80% on the same…

A: Introduction: Suppose there are k groups numbered 1, 2, 3, …, k – 1, and k.

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: Use the following frequency distribution table to determine how many subjects were in the study. Xf…

A: Given information- We have given the following frequency distribution table. x f 5 2 4 4 3…

Q: how many sports played male vs female based on the data

A: Given, The number of sports played by the students: Grade Number of students 9 16 10 13 11…

Q: Determine the mean of the given data -14,5,3,-15,-4,1

A: The answer is given below:

Q: . Distance of Residential Houses from the Barangay Hall Distance (km) Number of Houses 23-26 12-22…

A:

Q: Suppose that 19% of all athletes in a sport use a banned drug. A test is available that detects 88%…

A:

Q: Find the weighted mean of four test results, 65, 89, 105 and 101, where the first test counts 22%,…

A: Given:   x weight 65 22% 89 32% 105 17% 101 29%

Q: The following are the scores of 15 students on an algebra test. Identify a cumulative frequency…

A: Given that  70,70,72,73,73,74,75,76,81,82,82,82,84,84,94 Sample size n =15

Q: a skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p,…

A: It is given that the skeptical paranormal researcher claims that the proportion of Americans that…

Q: An ectopic pregnancy is twice as likely to develop when the pregnant woman is smoker compared to…

A: Consider EP represents the event that the women have an ectopic pregnancy.Consider S represents the…

Q: What percent of athletes who test positive for the drug are actually using the drug? Answer: 77 28

A: Let us define some events A : an athlete is using the drug. B : an athlete is bkt using the drug. E…

Q: Solve using variation of parameters: y" - 2y + y = et/(1+12) + 3et Yp= U₁ et + u2 tet (Use 2 decimal…

A:

Q: The population of the community is 15000 people. Which of the following is the prevalence proportion…

A: Given,6 new cases of diabetes5 cases are reported previous yearThe population of the community is…

Q: The data set {2,5, q, 10, 13, 16} has mean i = 9. Find the value of q.

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Q: Calculate a 98% confidence interval for the true proportion luggage returned within 24 hours.

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Q: You work for a consumer watchdog publication and are testing the advertising claims of a tire…

A: Given life spans are: 48,989   42,327   28,497    38,566    33,197    40,419   41,497…

Q: Part asked to find the sample correlation coefficient

A: Correlation: By correlation we mean the association or interdependence between two variables. If two…

Q: If the test result is significant at 5% level, it must also be significant at 1% level.

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Q: Give the formula for sample mean.

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Q: Given the data: 1, 3, 3, 4, 6, 7, 7, 7, 8, 9, 9, 10, 12, 15, 16, 17. Which value is the 75th…

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