Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment. min

9th Grade            10th grade           11th grade                  12th grade     6                            10                         17                                15     9                            12                         8                                  16     6                            11                         11                                12     7                            11                         14                                12     7                            14                         15                                12   Using the table in the back of the book, find the critical value for F with a standard deviation of .05

Test a claim that the mean amount of lead in the air in U.S. cities is less than 0.036 microgram per cubic meter. It was found that the mean amount of lead in the air for the random sample of 57 U.S. cities is 0.039 microgram per cubic meter and the standard deviation is 0.067 microgram per cubic meter. At α=0.10​, can the claim be​ supported? Complete parts​ (a) through​ (e) below. Assume the population is normally distributed.       Question content area bottom Part 1 ​(a) Identify the claim and state H0 and Ha.   H0:  ▼   pp muμ sigma squaredσ2 sigmaσ ▼   not equals≠ greater than> less than or equals≤ less than< equals= greater than or equals≥ enter your response here Ha:  ▼   muμ sigma squaredσ2 pp sigmaσ ▼   not equals≠ equals= greater than or equals≥ greater than> less than or equals≤ less than< enter your response here ​(Type integers or decimals. Do not​ round.)   The claim is the ▼   null alternative…

Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.1 significance level.   Based on a sample of 70 people, the sample mean GPA was 2.81 with a standard deviation of 0.03   The positive critical value is: (to 2 decimals)

Chapter 9, Section 2, Exercise 032 Use the following ANOVA table for regression to answer the questions. Response: Y Source DF Sum Sq Mean Sq F-value Pr(>F) Regression 1 355.21 355.21 14.76 0.000 Residual Error 359 8641.13 24.07     Total 360 8996.34                 Give the F-statistic and p-value.Enter the exact answers.The F-statistic is=The p-value is=

An article in a journal reports that​ 34% of American fathers take no responsibility for child care. A researcher claims that the figure is higher for fathers in the town of Littleton. A random sample of 225 fathers from​ Littleton, yielded 97 who did not help with child care. Find the​ p-value for a test of the​ researcher's claim to three decimal places       Question content area bottom Part 1   A. 0.053   B. 0.001   C. 0.002   D. 0.004

9th grade       10th grade        11th grade          12th grade  6                             10                       17                       15 9                              12                      8                         16 6                              11                      11                        12 7                              11                      14                        12 7                              14                      15                         12   find the critical value for F (F crit) with a standard deviation .05

Test a claim that the mean amount of lead in the air in U.S. cities is less than 0.035 microgram per cubic meter. It was found that the mean amount of lead in the air for the random sample of 55 U.S. cities is 0.038 microgram per cubic meter and the standard deviation is 0.069 microgram per cubic meter. At α=0.01​, can the claim be​ supported? Complete parts​ (a) through​ (e) below. Assume the population is normally distributed.

critical value p vaule and z value

Test a claim that the mean amount of lead in the air in U.S. cities is less than 0.036 microgram per cubic meter. It was found that the mean amount of lead in the air for the random sample of 57 U.S. cities is 0.039 microgram per cubic meter and the standard deviation is 0.067 microgram per cubic meter. At α=0.10​, can the claim be​ supported? Complete parts​ (a) through​ (e) below. Assume the population is normally distributed.       Question content area bottom Part 1 ​(a) Identify the claim and state H0 and Ha.   H0:  muμ   greater than or equals≥   0.0360.036 Ha:  muμ   less than<   0.0360.036 ​(Type integers or decimals. Do not​ round.)   The claim is the alternative   hypothesis. Part 2 ​(b) Find the critical​ value(s) and identify the rejection​ region(s).   The critical​ value(s) is/are t0=enter your response here. ​(Use a comma to separate answers as needed. Round to two decimal places as​ needed.)