Most pregnancies are full term, but some arepreterm (less than 37 weeks). Of those that arepreterm, they are classified as early (less than34 weeks) and late (34 to 36 weeks). A reportexamined those outcomes for one year, brokendown by age of the mother. Is there evidencethat the outcomes are not independent of agegroup?Under 2020 to 2930 to 3940 or OverEarlyPreterm12924616215LatePreterm27461642236 Choose the correct null and alternative hypotheses below.A. Ho: The proportions of early/late preterm births are not the same for all agegroups.HA: The proportions of early/late preterm births are the same for all age groups.B. Ho: Age group and outcome are independent.HA: Age group and outcome are not independent.C. Ho: Age group and outcome are not independent.HA: Age group and outcome are independent.D. Ho: The proportions of early/late preterm births are the same for all age groups.HA: The proportions of early/late preterm births are not the same for all agegroups.Compute the x² statistic.x² ==(Round to three decimal places as needed.)Find the P-value.P-value =(Round to three decimal places as needed.)

From given data we have : Observed Frequencies under 20 B1 20 to 29 B2 30 to 39 B3 40 or Over…

Answered: Most pregnancies are full term, but…

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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Results from the 2015 IPEDS Report indicate that about 1 out of 25 students at Mohawk Valley Community College identify themselves as being of Asian descent. Which of the following choices is the best estimate for the percentage of students at MVCC who identify themselves as of Asian descent? 0.4% 2.5% 0.04% 4% 25% 0.25%
Give 5 examples of situations using this: 1. Retrospective Study 2. Observational Study 3. Designed Experiment
Would observations or interviews be more appropriate to research the following topic?People's behaviors at dog parks.O ObservationO Interviews
When we test the hypothesis that the population proportions are equal, we can use the Z test for a one-sided as well as a two-sided alternative. Select one: a. False b. True C. Not sure
suppose you are running a poll about the proportion Of women over 40 who regularly have mammograms. You randomly sample 120 people and find out that 60 of them match condition you are testing.
You are interested in comparing sleep habits of elementary school children. Suppose you have agroup of eighth graders. You asked them in July to estimate about how many hours of sleep they get pernight, on average. You asked those same individuals the same question again in November, during theschool year. Which is the most appropriate test to use?
A random sample of n1 = 148 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 14 were found to be high school dropouts. Another random sample of n2 = 125 people ages 16 to 19 were taken from Sweetwater County, Wyoming, and 5 were found to be high school dropouts. Do these data indicate that the population proportion of high school dropouts on Oahu is different (either way) from that of Sweetwater County? Use a 1% level of significance. I need help with sketching, (d) and (e)
The government sample survey of 60,000 households each month that produces data on employment, earnings, and many other variables is called the A. General Household Survey. B. Gallup Poll. C. Labor Statistics Survey. D. General Social Survey. E. Current Population Survey.
A researcher is investigating the effects of sleep deprivation by testing people in the morning when they are well rested and testing again after they have been awake for 36 hours. Which of the following research designs should be used? a. repeated-measures b. independent-measures
SIS Travel Agency, a nation wide local travel agency, offers special rates on summer perlod. The owner wants additional information on the ages of those people taking travel tours. A random sample of 50 customers taking travel tours last summer revealed these ages. 18 29 37 42 47 49 53 57 61 67 19 31 38 44 48 50 54 58 62 68 24 34 39 45 48 51 54 58 63 70 27 36 39 46 48 51 55 59 64 74 28 36 40 46 49 52 56 60 66 77 B. Determine the P15, P22, , P55, P77 of the frequency distribution and construct the graph.
Suppose the null hypothesis is not rejected. State the conclusion based on the results of the test. Six years ago, 11.1% of registered births were to teenage mothers. A sociologist believes that the percentage has decreased since then.
The National Highway traffic Safety Administration requires each U.S. state to carry out an observational study to assess the level of seat belt use in the state. One report summarized data from a study done in a certain state. The proportions in the accompanying table are based on observations of over 25,000 drivers and passengers. Male Female Uses Seatbelt Does Not Use Seat Belt 0.42 0.455 0.08 0.045 Assume that these proportions are representative of adults in this state and that an adult from this state is selected at random. (a) What is the probability that the selected adult does not use a seat belt given that the selected individual is female? (b) What is the probability that the selected individual is female given that the selected individual does not use a seat belt? (c) Are the probabilities from parts (a) and (b) equal? Write a couple of sentences explaining why or why not. They --Select--- ✓ equal. Part (a) is the proportion of [---Select--- ---Select--- and part (b) is the…

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