Question

The average amount of time boys and girls aged seven to 11 spend playing sports each...

The average amount of time boys and girls aged seven to 11 spend playing sports each day is believed to be the same. A study is done and data are collected, resulting in the data in the table below. Each populations has a normal distribution. Test the claim at a 0.05 level of significance. Sample Size (n) Mean Time (hrs) Sample Standard Deviation Population 1: Girls 9 2 0.866 Population 2: Boys 16 3.2 1.000 Ho : μ1 μ2 Ha : μ1 ≠ μ2 t - Test Statistic = (Round to 2 decimals) p - Value = (Round to 4 decimals) Conclusion: There is sufficient evidence to (reject OR not reject) the claim

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Sex Sports Popularity Grades Boys 60 50 117 Girls 30 91 130 Sports Popularity Grades Proportion...
Sex Sports Popularity Grades Boys 60 50 117 Girls 30 91 130 Sports Popularity Grades Proportion of boys who selected each category. 0.2643171806 0.2202643172 0.5154185022 Proportion of girls who selected each category 0.1195219124 0.3625498008 0.5179282869 1)if goals were contingent on district type. Was there any difference in the goals of students from rural, urban, or suburban areas? Create an observed frequency table using the raw data and calculate Χ2. Χ2 = Hint: I counted up the observed frequencies for the...
To test whether the mean time needed to mix a batch of material is the same...
To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company obtained the following data on the time (in minutes) needed to mix the material. Manufacturer 1 2 3 19 29 21 25 27 19 24 32 23 28 28 25 (a) Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use α =...
Consider the data in the table collected from three independent populations. Sample 1 Sample 2 Sample...
Consider the data in the table collected from three independent populations. Sample 1 Sample 2 Sample 3    6 1    4    2 3 5    7 2 1    6 ​a) Calculate the total sum of squares​ (SST) and partition the SST into its two​ components, the sum of squares between​ (SSB) and the sum of squares within​ (SSW). b) Use these values to construct a​ one-way ANOVA table. ​c) Using α=0.10​, what conclusions can be made concerning...
A sociologist claims that children spent more time watching television in 1981 than children do today....
A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown below. Assume the population standard deviation is 0.8 for 1981 and 0.6 for today. At α=0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. 1981 1981 2.5...
“The See Me” marketing agency wants to determine if time of day for a television advertisement...
“The See Me” marketing agency wants to determine if time of day for a television advertisement influences website searches for a product. They have extracted the number of website searches occurring during a one-hour period after an advertisement was aired for a random sample of 30 day and 30 evening advertisements. A portion of the data is shown in the accompanying table. Day Searches Evening Searches 96670          118379         97855         111005         96368         100482         98465         122160         98550         117158         101623         101556         95753        ...
A sociologist claims that children spent more time watching television in 1981 than children do today....
A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown below. Assume the population standard deviation is 0.7 for 1981 and 0.7 for today. At α=0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. 1981 3.2 1.4...
Please answer both!! Suppose the national average dollar amount for an automobile insurance claim is $805.66....
Please answer both!! Suppose the national average dollar amount for an automobile insurance claim is $805.66. You work for an agency in Michigan and you are interested in whether or not the state average is less than the national average. The hypotheses for this scenario are as follows: Null Hypothesis: μ ≥ 805.66, Alternative Hypothesis: μ < 805.66. You take a random sample of claims and calculate a p-value of 0.02 based on the data, what is the appropriate conclusion?...
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater...
A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater than that of its leading competitor. A sample of 19 phones from the manufacturer had a mean range of 1160 feet with a standard deviation of 32 feet. A sample of 11 similar phones from its competitor had a mean range of 1130 feet with a standard deviation of 23 feet. Do the results support the manufacturer's claim? Let μ1 be the true mean...
A systems analyst tests a new algorithm designed to work faster than the currently-used algorithm. Each...
A systems analyst tests a new algorithm designed to work faster than the currently-used algorithm. Each algorithm is applied to a group of 70 sample problems. The new algorithm completes the sample problems with a mean time of 18.56 hours. The current algorithm completes the sample problems with a mean time of 20.22 hours. Assume the population standard deviation for the new algorithm is 5.291 hours, while the current algorithm has a population standard deviation of 3.428 hours. Conduct a...
Two teaching methods and their effects on science test scores are being reviewed. A random sample...
Two teaching methods and their effects on science test scores are being reviewed. A random sample of 18 students, taught in traditional lab sessions, had a mean test score of 73.5 with a standard deviation of 3.2. A random sample of 13 students, taught using interactive simulation software, had a mean test score of 85.9with a standard deviation of 6. Do these results support the claim that the mean science test score is lower for students taught in traditional lab...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT