Numerade

Questions asked

INSTANT ANSWER

Protons: Neutrons: Electrons: Valence electrons:

INSTANT ANSWER

Write a 2-3 page narrative about one time that you wrote something that was important to you. Keep this story first-person and focus on the chronology: tell the story of your writing process in order. Include aspects about why you were writing this, whom you thought might read this, and any reactions you may have gotten to the writing

View Answer

INSTANT ANSWER

Choose any course you are taking this semester (including this course) and look at the syllabus/schedule through the lens of Growth Mindset and Bloom's Taxonomy. Write 1-2 double-spaced pages in basic MLA format (don't worry about citing the syllabus for now - we will cover that skill later) that explain your personal history with that subject, how you can view the course as a challenge that will produce growth for you personally, and how the course is structured to help you move from less knowledge/lower-order functions to more knowledge/higher-order functions.

View Answer

ANSWERED

Jacob Mclean

Numerade educator

A survey claims that the average cost of a hotel room in Atlanta is $69.23. To test this claim, a researcher selects a sample of 30 hotel rooms and finds the average cost is $68.43. Assume the population standard deviation of $3.72. At a 0.05 significance level, is there enough evidence to reject the claim that the average cost of a hotel room in Atlanta is $69.23? Which test are you running? One mean z-test One mean t-test ANOVA Chi-Square Goodness of Fit What is the null hypothesis? Ho: Ho: What is the alternative hypothesis? Ha: Ha: What is the test statistic? Round the answer to two decimal places. What is the p-value? Round the answer to three decimal places. What is the conclusion when you compare the p-value and the level of significance (alpha)? Reject the null hypothesis Fail to reject the null hypothesis What is the conclusion based on the original claim? At the 0.05 level of significance, the cost of a hotel room in Atlanta is $69.23. At the 0.05 level of significance, the cost of a hotel room in Atlanta is not $69.23

View Answer

ANSWERED

Jerelyn Nevil

Numerade educator

A potato chip company wants to evaluate the accuracy of its potato chip bag filling machine. Bags are labeled as containing 8 ounces of potato chips. A simple random sample of 12 bags had a mean weight 8.12 ounces with a sample standard deviation of 0.1 ounce. Assuming the mean bag weights are normally distributed, construct a 99% confidence interval for the population mean weight of bags of potato chips. What is the sample mean? Options: 99, 8.12, 12, 8 What is the sample size? Options: 12, 0.01, 8.12, 99 What is the sample standard deviation? Options: 12, 0.029, 8.12, 0.1 What is the confidence level for this scenario? Options: 95%, 80%, 90%, 99% What is the lower bound of the confidence interval? Options: 8.0456, 8.0565, 8.0303, 8.2097 What is the upper bound of the confidence interval? Options: 8.2097, 8.1835, 8.1944, 8.0303 What is the error bound margin? Options: 0.1794, 0.0744, 0.0635, 0.0897 What is the correct conclusion? Options: With 99% confidence, we estimate that the true population mean potato chip bag weights are between 8.0303 ounces and 8.2097 ounces. With 99% confidence, we estimate that the true population mean potato chip bag weights are between 8.0565 ounces and 8.1835 ounces. With 99% confidence, we estimate that the true population mean potato chip bag weights are between 8.0456 ounces and 8.1944 ounces.

View Answer

ANSWERED

Kirsty Gledhill

Numerade educator

Four different traffic routes are tested for mean driving time. The entries in the table are the driving times in minutes on the three different routes. At the 0.05 level of significance, are the mean driving times similar regardless of routes? Route 1: 30, 32, 27, 35, 42, 20 Route 2: 27, 29, 28, 36,13 Route 3: 16, 41, 22, 31, 5 Route 4: 7, 11, 32, 50, What is the null hypothesis? The mean driving times are not similar regardless of routes. The mean driving times are similar regardless of routes. What is the alternative hypothesis? The mean driving times are similar regardless of routes. The mean driving times are not similar regardless of routes. What is test statistic? Please answer with two decimal places. What is the p-value? Please answer with three decimal places. What is your conclusion based on the p-value and the level of significance? Fail to reject the null hypothesis Reject the null hypothesis What is the proper conclusion? At the 0.05 level of significance, the mean driving times are similar regardless of routes. At the 0.05 level of significance, the mean driving times are not similar regardless of routes.

View Answer

ANSWERED

Kirsty Gledhill

Numerade educator

Girls from four different soccer teams are to be tested for mean goals scored per game. The entries in the table are the goals per game for the different teams. At the 0.05 level of significance, are the mean goals scored similar among the different teams? Team 1 Team 2 Team 3 Team 4 4 1 2 4 3 2 3 1 4 0 2 1 4 3 4 3 2 4 0 2 What is the null hypothesis? The mean goals scored similar among the different teams. The mean goals scored are not similar among the different teams. What is the alternative hypothesis? The mean goals scored similar among the different teams. The mean goals scored are not similar among the different teams. What is test statistic? Please answer with two decimal places. What is the p-value? Please answer with three decimal places. What is your conclusion based on the p-value and the level of significance? Fail to reject the null hypothesis Reject the null hypothesis What is the proper conclusion? At the 0.05 level of significance, the mean goals scored are not similar among the different teams. At the 0.05 level of significance, the mean goals scored similar among the different teams.

View Answer

ANSWERED

Kirsty Gledhill

Numerade educator

Groups of men from three different areas of the country are to be tested for mean weight. The entries in the table are the weights for the different groups. At the 0.05 level of significance, are the mean weights similar throughout the country? Group 1 Group 2 Group 3 116 202 170 198 213 165 140 284 182 187 228 197 176 210 What is the null hypothesis? The mean weights similar throughout the country. The mean weights are not similar throughout the country. What is the alternative hypothesis? The mean weights similar throughout the country. The mean weights are not similar throughout the country. What is test statistic? Please answer with two decimal places. What is the p-value? Please answer with three decimal places. What is your conclusion based on the p-value and the level of significance? Fail to reject the null hypothesis Reject the null hypothesis What is the proper conclusion? At the 0.05 level of significance, the mean weights similar throughout the country. At the 0.05 level of significance, the mean weights are not similar throughout the country.

View Answer

ANSWERED

Lucas Finney

Numerade educator

The population mean of ages for all females on the Titanic (survivors and non-survivors) was 25.2 years. A sample of 13 women was taken and found to have a mean age of 27.92 years with a standard deviation of 16.90. Is the sample data you were given for the female ages the same as the population ages? Use a .05 level of significance. Choose the correct null hypothesis (Ho): Ho: µ ≥ 25.2 years Ho: µ ≤ 25.2 years Ho: µ = 25.2 years Choose the correct alternative hypothesis (Ha): Ha: µ < 25.2 years Ha: µ ≠ 25.2 years Ha: µ > 25.2 years What is the test statistic? (Give two decimal places) What is the p-value? Use three decimal places in your answer. What is the conclusion when you compare the p-value and the level of significance (alpha)? Reject the null since the p-value is less than the level of significance. Fail to Reject the null since the p-value is greater than the level of significance. Reject the null since the p-value is equal to the level of significance. What is the conclusion based on the original claim? At the 0.05 level of significance, the ages from the sample of females who survived are not similar to the overall population ages of all females. At the 0.05 level of significance, the ages from the sample of females who survived are similar to the overall population ages of all females. Scenario 4 The population mean of ages for all females on the Titanic (survivors and non-survivors) was 24 years. A new sample of 13 different women were taken and found to have a mean age of 25.23 years with a standard deviation of 16.22. Is the sample data you were given for the female ages greater than the population ages? Use a .05 level of significance. Choose the correct null hypothesis (Ho): Ho: µ ≤ 24 years Ho: µ = 24 years Ho: µ ≥ 24 years Choose the correct alternative hypothesis (Ha): Ha: µ ≠ 24 years Ha: µ > 24 years Ha: µ < 24 years What is the test statistic? (Give two decimal places) What is the p-value? (Give three decimal places)

View Answer

ANSWERED

Lucas Finney

Numerade educator

Use the following information to answer the next questions: We are interested in whether this age group of males fits the distribution of the U.S. adult population. Calculate the frequency one would expect when surveying 400 people. Observed Values: Never married 150; Married 228; Widowed 5; Divorced/Separated 17 Expected Values follow these proportions: Never married 30%; Married 56%; Widowed 3%; Divorced/Separated 11% Question 48 What is the observed values for never married? Question 49 What is the observed values for married? Question 50 What is the observed values for widowed? Question 51 What is the observed values for divorced/separated? Question 52 What is the expected values for never married? Question 53 What is the expected values for married? Question 54 What is the expected values for widowed? Question 55 What is the expected values for divorced/separated? Question 56 What are the degrees of freedom? Question 57 What is the null hypothesis? The age group of males fits the distribution of the U.S. adult population. The age group of males doesn't fit the distribution of the U.S. adult population. Question 58 What is the alternative hypothesis? The age group of males fits the distribution of the U.S. adult population. The age group of males doesn't fit the distribution of the U.S. adult population. Question 59 What is the test statistic? Use four decimal places. Question 60 What is the p-value? Question 61 What is your conclusion based on the p-value and the level of significance? Fail to reject the null hypothesis Reject the null hypothesis Question 62 At the 5% significance level, what can you conclude? At the 5% level of significance, the age group of males doesn’t fit the distribution of the U.S. adult population. At the 5% level of significance, the age group of males fits the distribution of the U.S. adult population.

View Answer

Chelsey B.