Can u help me in this multiple choice questions

5:56 4 .n LTE C3- Take Quiz Exit ll D Question 2 1 pts Which of the following is not needed to compute a 1' statistic? Q The value of the population variance or standard deviation 0 A hypothesized value for the population mean 0 The value of the sample mean 0 The value of the sample variance or standard deviation D Question 3 1 pts If a researcher is using a 1' statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic? Q You must know the population variance or standard deviation. 0 You must know the population mean and the variance or standard deviation 5:56 4 .n LTE C)- Take Quiz Exit ll D Question 3 1 pts If a researcher is using a 2' statistic to test a null hypothesis about a population, what information is needed from the population to calculate the 2' statistic? Q You must know the population variance or standard deviation. 0 You must know the population mean and the variance or standard deviation 0 You must know the population mean. 0 The t statistic does not require any information about the population. D Question 4 1 pts On average, what value is expected for the t statistic when the null hypothesis is true? Qt=1.96 Ot>1.96 Ot=0 5:56 4 .n LTE C3- Take Quiz Exit D Question 6 1 pts Which set of characteristics will produce the smallest value for the estimated standard error? 0 A small sample size and a small sample variance 0 A small sample size and a large sample variance 0 A large sample size and a small sample variance 0 A large sample size and a large sample variance D Question 7 1 pts A researcher conducts a hypothesis test using a sample from an unknown population. If the 1' statistic has df= 30, how many individuals were in the sample? 5:57 9 .01 LTE Take Quiz Exit Question 14 1 pts In general, the larger the value of the sample variance, the greater the likelihood of rejecting the null hypothesis. O True O False Question 15 1 pts A research report states "t(15) = 2.31, p <.05. for this study the sample had n="16" scores. true o false quiz saved at submit time elapsed: hide attempt due: jun :5:56 .n lte c take exit l question pts a of scores produces t statistic if is used to measure effect size with r2 what value will be obtained d researcher selects from population mean m="40" and administers treatment individuals in sample. expected decrease which following correct statement null hypothesis one-tailed test qm240 ng40 om qm>40 5:56 7 .01 LTE Take Quiz Exit ( ine astausuc does not require any information about the population. Question 4 1 pts On average, what value is expected for the t statistic when the null hypothesis is true? O t= 1.96 O t> 1.96 Ot= 0 Of= 1 Question 5 1 pts A sample of n = 25 scores has a mean of M = 40 and a standard deviation of s = 10. What is the estimated standard error for the sample mean? O 1 O 2 O 2.55:56 4 .n LTE C)- Take Quiz Exit D Question 8 1 pts When n is small (less than 30), how does the shape of the 2' distribution compare to the normal distribution? 0 It is almost perfectly normal. 0 There is no consistent relationship between the 1' distribution and the normal distribution. 0 It is taller and narrower than the normal distribution. 0 It is atter and more spread out than the normal distribution. D Question 9 1 pts If other factors are held constant, What is the effect of increasing the sample size? 0 It will decrease the estimated standard error and decrease the likelihood of rejecting HO. Q It will increase the estimated standard error and increase the likelihood of rej ecting HO. Q It will decrease the estimated standard error and increasemcting H0. 5:56 4 .n LTE C)- Take Quiz Exit normal distribution. D Question 9 1 pts If other factors are held constant, what is the effect of increasing the sample size? 0 It will decrease the estimated standard error and decrease the likelihood of rejecting HO. Q It will increase the estimated standard error and increase the likelihood of rej ecting HO. Q It will decrease the estimated standard error and increase the likelihood of rej ecting HO. Q It will increase the estimated standard error and decrease the likelihood of rejecting H0. D Question 10 1 pts If other factors are held constant, what is the effect of increasing the sample variance? 0 It will decrease the estimated standard error and increase the likelihood of rej ecting HO. Q It will decrease the estimated standard error and decreW-ecting H0. 5:56 7 .01 LTE Take Quiz Exit Question 10 1 pts If other factors are held constant, what is the effect of increasing the sample variance? It will decrease the estimated standard error and increase the likelihood of rejecting Ho- O It will decrease the estimated standard error and decrease the likelihood of rejecting Ho- O It will increase the estimated standard error and decrease the likelihood of rejecting Ho. It will increase the estimated standard error and increase the likelihood of rejecting Ho- Question 11 1 pts If other factors are held constant, which set of sample characteristics is most likely to reject a null hypothesis stating that u = 80? O M= 90 for a sample of n = 100 O M= 90 for a sample of n = 25 O M = 85 for a sample of n = 255:56 4 .n LTE C)- Take Quiz Exit % D Question 7 1 pts A researcher conducts a hypothesis test using a sample from an unknown population. If the 1 statistic has df= 30, how many individuals were in the sample? 0 Cannot be determined from the information given On=30 D Question 8 When n is small (less than 30), how does the shape of the t distribution compare to the normal distribution? 0 It is almost perfectly normal. 0 There is no consistent relationship between the t distribution and the normal distribution. ("N It is taller and narrower man We normal 5:56 4 .n LTE C)- Take Quiz Exit D Question 5 1 pts A sample of n = 25 scores has a mean of M = 40 and a standard deviation of s = 10. What is the estimated standard error for the sample mean? 04 01 02 02.5 D Question 6 1 pts Which set of characteristics will produce the smallest value for the estimated standard error? 0 A small sample size and a small sample variance 0 A small sample size and a large sample variance 0 A large sample size and a small sample variance 0 A large sample size and a large sample variance 5:56 4 .n LTE C)- Take Quiz Exit Will be available TOl' SIX GBYS to complete eacn QUIZ, DUI once you start a quiz you must complete it so please plan accordingly. You may use your textbook and notes to refer to the While taking the quiz. D Question 1 1 pts Which of the following is a fundamental difference between the t statistic and a zscore? O The t statistic uses the sample mean in place of the population mean. 0 The t statistic uses the sample variance in place of the population variance. 0 All of these are differences between t and z. O The 1' statistic computes the standard error by dividing the standard deviation by n - 1 instead of dividing by n. D Question 2 1 pts Which of the following is not needed to compute a 1' statistic? Q The value of the population variance or standard deviation 5:56 7 .01 LTE Take Quiz Exit Question 11 1 pts If other factors are held constant, which set of sample characteristics is most likely to reject a null hypothesis stating that u = 80? O M= 90 for a sample of n = 100 O M = 90 for a sample of n = 25 O M = 85 for a sample of n = 25 M = 85 for a sample of n = 100 Question 12 1 pts A sample of n = 16 scores produces a t statistic of t = 2.00. If the sample is used to measure effect size with r, what value will be obtained for r?? 0 12 =2/19 0 12 = 2/20 0 12 = 4/19 0 12 = 4/20