A study of the effect of television commercials on 12-year-old children measured their attention span, in...
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys.
| Clothes | Food | Toys |
| 23 | 32 | 57 |
| 24 | 44 | 47 |
| 29 | 40 | 43 |
| 35 | 49 | 52 |
| 28 | 47 | 63 |
| 31 | 42 | 53 |
| 17 | 34 | 48 |
| 31 | 43 | 58 |
| 20 | 57 | 47 |
| 47 | 51 | |
| 44 | 51 | |
| 54 |
- Complete the ANOVA table. Use 0.05 significance level. (Round the SS and MS values to 1 decimal place and F value to 2 decimal places.)
| Source | df | SS | MS | F | P |
| Factors | |||||
| Error | |||||
| Total |
- Find the values of mean and standard deviation. (Round the mean and standard deviation values to 3 decimal places.)
- Is there a difference in the mean attention span of the children for the various commercials?
- Are there significant differences between pairs of means?
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A study of the effect of television commercials on 12-year-old
children measured their attention span, in...
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. Th...
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 26 45 60 21 48 51 43 43 43 35 53 54 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 51 44 54 Click here for the EXCel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and...
PLEASE HELP ??⭐️ A study of the effect of television commercials on 12-year-old children measured thelt...
PLEASE HELP ??⭐️
A study of the effect of television commercials on 12-year-old
children measured thelt attention span in seconds. The commercials
were for clothes, food, and toys.
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Food 23 32 Toys 57 43 Click here for the Excel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS...
The mean duration of television commercials on a given network is 70 seconds, with a standard...
The mean duration of television commercials on a given network is 70 seconds, with a standard deviation of 19 seconds. Assume that durations are approximately normally distributed. (a) What is the approximate probability that a commercial will last less than 32 seconds? (Round your answer to three decimal places.) (b) What is the approximate probability that a commercial will last longer than 51 seconds? (Round your answer to two decimal places.)
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When only two treatments are involved, ANOVA and the Student's t test (Chapter 11) result in the same conclusions. Also, for computed test statistics, t F. To demonstrate this relationship, use the following example. Fourteen randomly selected students enrolled in a history course were divided into two groups, one consisting of 6 students who took the course in the normal lecture format. The other group of 8 students took the course as a distance course format. At the end of...
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Find the standard deviation, s, of sample data summarized in the frequency distribution table below by...
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A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 26 45 60 21 48 51 43 43 43 35 53 54 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 51 44 54 Click here for the EXCel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and...
PLEASE HELP ??⭐️
A study of the effect of television commercials on 12-year-old
children measured thelt attention span in seconds. The commercials
were for clothes, food, and toys.
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Food 23 32 Toys 57 43 Click here for the Excel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS...
The mean duration of television commercials on a given network is 70 seconds, with a standard deviation of 19 seconds. Assume that durations are approximately normally distributed. (a) What is the approximate probability that a commercial will last less than 32 seconds? (Round your answer to three decimal places.) (b) What is the approximate probability that a commercial will last longer than 51 seconds? (Round your answer to two decimal places.)
MY NOT DETAILS 19. (1.23/3.33 Points) PREVIOUS ANSWERS ILLOWSKYINTROSTAT1 7.HW.076. The attention span of a two-year-old is exponentially distributed with a mean of about 9 minutes. Suppose we randomly survey 60 two-year-olds. Partial Part Give the distribution of X X- Part Part Give the distribution of X (Round your standard deviation to two decimal places.) -OOO) Parte) Part Calculate the probability that an individual attention span is less than 10 minutes. (Round your answer to four decimal places.) Calculate the...
When only two treatments are involved, ANOVA and the Student's t test (Chapter 11) result in the same conclusions. Also, for computed test statistics, t F. To demonstrate this relationship, use the following example. Fourteen randomly selected students enrolled in a history course were divided into two groups, one consisting of 6 students who took the course in the normal lecture format. The other group of 8 students took the course as a distance course format. At the end of...
The effect of mean monthly daily temperature and cost per kilowatthour x, on the mean daily household consumption of electricity (in kilowatt-hours, kWh) was the subject of a short-term study. The investigators expected the demand for electricity to rise in cold weather (due to heating), fall when the weather was moderate, and rise again when the temperature rose and there was need for air-conditioning. They expected demand to decrease as the cost per kilowatt-hour increased, reflecting greater attention to conservation....
An article in the American Journal of Emergency Medicine compared the ability to detect acute traumatic aortic injury (ATAI) on cervical x-ray images. The data consisted of 13 cases of ATAI, 19 cases with negative aortography (NAO) and 18 cases with multiple trauma (MT) without aortography. Measurements of the cervical soft-tissue width at the third cervical vertebrae generated the following results. Averages were 8.4, 8.8 and 6.2 mm and standard deviations were 3.1, 2.6 and 2.9 mm for the ATAI,...
Find the standard deviation, s, of sample data summarized in the frequency distribution table below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the original list of data values, 11.1. SE [E (-x2)]- [68 - x))? n(n-1) Interval 30-36 44-50 Frequency 2 3 Standard deviation - (Round to one decimal place...
solvel only E F G H
below is pat data
3. A hospital administrator wished to study the relation between patient satisfaction (Y) and patients age (Xi, in years), severity of illness (X2, an index) and anxiety level (X3, an index). The administrator randomly selected 23 patients and collected the data in pat, where larger values of Y, X2 and X3 are, respectively, associated with more satisfaction, increased severity of illness and more anxiety. The data is saved in Moodle2...
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