Select the correct answer below as a percent rounded to 3 significant digits. - Show your calculations on your scrap paper for full marks. a. 10% b. 0.5 c. 33.3% d. 50%
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A sample of 50 children at a Pediatric Clinic were surveyed regarding their preferences for flavoured vitamins. Below are the results.
Age
Flavour Preference
Totals
Strawberry
Chocolate
Banana
3 to 5 years old
2
7
13
22
6 to 8 years old
3
5
5
13
9 to 11 years old
5
3
7
15
Totals
10
15
25
50
What is the probability that a randomly selected child prefers the strawberry flavoured vitamins and is 9 to 11 years old?
Note:
- Select the correct answer below as a percent rounded to 3 significant digits.
- Show your calculations on your scrap paper for full marks.
a. 10%
b. 0.5
c. 33.3%
d. 50%
Step by step
Solved in 2 steps
- An observational study is described. Identify the specified element.At St. Luke's hospital in 1998, 674 women were diagnosed with breast cancer. Five years later, 88% of the Caucasian women and 83% of the African American women were still alive. Determine the nature and scope of the conclusion the study can reach. Choose the best answer below: A. Since there is no random assignment, there is no way to know that being Caucasian causes women with breast cancer an increased chance of surviving five years; there may have been confounding variables. B. For women with breast cancer, being Caucasian causes an increased chance of surviving five years. C. Since there is no random assignment, there is no way to know that being Caucasian causes women with breast cancer an increased chance of surviving five years; there may have been lurking variables. D. For Caucasian and African American women with breast cancer, attending St. Luke's hospital causes an increased chance of surviving five…Based on the group’s samples, what is the probability of selecting a candy that is blue? Find it for the entire group.The Census Bureau gives this distribution for the number of people in American households in 2016. Family size 1 2 4 6. 7 Proportion 0.28 0.35 0.15 0.13 0.06 0.02 0.01 Note: In this table, 7 actually represents households of size 7 or greater. But for purposes of this exercise, assume that it means only households of size exactly 7. Suppose you take a random sample of 4000 American households. About how many of these households will be of size 2? Sizes 3 to 7? The number of households of size 2 is about The number of households of size 3 to 7 is about
- The class I'm taking is statistics! I am completely stuck. Need help. I have attached the problem. Please view attachment before answering. Thank you!A telephone operator firm has found that 20% of abanlarının over the years has passed to different firms. After a promotion attempt, 200 subscribers moved to 30 different companies. What is the test statistic for this event? Please select one: a. 0.125 b. 1.77 c. -1.77 d. None of them e. -1.25A manufacturer of colored candies states that 13% of the candies in a bag should be brown, 14% yellow, 13% red, 24% blue, 20% orange, and 16% green. A student randomly selected a bag of colored candies. He counted the number of candies of each color and obtained the results shown in the table. Test whether the bag of colored candies follows the distribution stated above at the a = 0.05 level of significance. Click the icon to view the table. Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: The distribution of colors is not the same as stated by the manufacturer. H,: The distribution of colors is the same as stated by the manufacturer. Observed Distribution of Colors B. Ho: The distribution of colors is the same as stated by the manufacturer. H,: The distribution of colors is not the same as stated by the manufacturer. Colored Candies in a bag C. None of these. Color Brown Yellow Red Blue Orange Green Frequency Claimed Proportion 60 65 55 63 78 65…
- A die is rolled 120 times to see if it is fair. The table below shows the frequencies for each of the six possible outcomes. Use a level of significance of a = 0.01. a. Complete the rest of the table by filling in the expected frequencies (enter your answers in fraction form): Frequency of Dice Values Outcome Frequency Expected Frequency 1 21 3 3 24 4 21 21 30 b. What are the null and alternative hypotheses? Ho: Select an answer 2.If the p-value on a coin flip experiment is .002. What would you conclude? Group of answer choices The coin is unfair. The probability of getting the proportion that you did or something more remote is 0.002. The coin is unfair. The probability of the coin being unfair is 0.002. The coin is fair. The probability of the coin being unfair is 0.002. The coin is fair. The probability of getting the proportion that you did or something more remote is 0.998.A firm wants to know if there is any difference in percentage of sport category watched based on age. The data for consumer preference can be found in the table below. What are the expected frequencies of each consumer entry? TV Viewers: % of Viewers, by Major Sport Category Item Ages 18-34 Ages 35+ eSports 50.6 86.3 Mixed Martial Arts 30 80.7 MLS 27.3 79.7 High School Football n/a 79.4 Minor League Hockey 24.6 78.8 Soccer (non-USA) 23.9 78.7 NBA 23.9 77.5 Running n/a 76.9 Minor League Baseball 21.7 76.7 NHL 20.1 73.9 NFL 20.1 70.5 NASCAR 19.3 n/a MLB 19.1 68.1 Tennis 18.7 68.5 College Basketball 18.2 n/a IndyCar 18 62.7 College Football 17.9 62.5 Golf 11.9 32
- A peony plant with red petals was crossed with another plant having streaky petals. A nursery owner states that 75% of the offspring resulting from this cross will have red flowers. To test this claim, 100 seeds from this cross were collected and germinated, and 72 plants had red petals. What is the test statistic? 1.62 3.23 -0.69 -3.93 -2.31 O ● ♫MA ♫ dansen 8 W P 0A manufacturer of colored candies states that 13% of the candies in a bag should be brown, 14% yellow, 13% red, 24% blue, 20% orange, and 16% green. A student randomly selected a bag of colored candies. He counted the number of candies of each color and obtained the results shown in the table. Test whether the bag of colored candies follows the distribution stated above at the a = 0.05 level of significance. E Click the icon to view the table, Question Help Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: The distribution of colors is not the same as stated by the manufacturer. H,: The distribution of colors is the same as stated by th O B. Ho The distribution of colors is the same as stated by H,: The distribution of colors is not the same as stated Observed Distribution of Colors O C. None of these. Colored Candies in a bag Compute the expected counts for each color. Frequency Color Frequency Claimed Proportion Brown Yellow Red Blue Orange…You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 296 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.10. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Cars in Each Lane Outcome Frequency Expected Frequency Lane 1 73 Lane 2 59 Lane 3 79 Lane 4 85 b. What is the correct statistical test to use? Select an answer < c. What are the null and alternative hypotheses? Ho: The traffic and lanes are independent. The distribution of traffic is not uniform. The distribution of traffic is uniform. The traffic and lanes are dependent. H1: The traffic and lanes are independent. O The distribution of traffic is uniform. The distribution of traffic is not uniform. The traffic and lanes are dependent.
