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im stuck at finding the number of degrees of freedom
Jump to level 1 The mean...
Jump to level 1 The mean voltage and standard deviation of 17 batteries from each manufacturer...
Jump to level 1 The mean voltage and standard deviation of 17 batteries from each manufacturer were measured. The results are summarized in the following table. 2 Manufacturer Sample mean voltage (millivolts) Sample standard deviatio А 171 B 169 3 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex 250 Does sufficient evidence exist to support the claim that the voltage of the batteries...
Jump to level 1 2 The mean voltage and standard deviation of 5 batteries from each...
Jump to level 1 2 The mean voltage and standard deviation of 5 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio 3 А 126 5 B 119 4 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 0 What is the number of degrees of freedom? Ex: 259 Does sufficient evidence exist to support the claim that the voltage...
< Jump to level 1 The mean voltage and standard deviation of 7 batteries from each...
< Jump to level 1 The mean voltage and standard deviation of 7 batteries from each manufacturer were measured. The results are summarized in the following table. 2 3 Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 161 3 B 157 2 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 0 What is the number of degrees of freedom? Ex 250 Does sufficient evidence exist to support the claim that the...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. > Jump to level...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. > Jump to level 1 The mean voltage and standard deviation of 5 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 167 B 164 3 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex 250 Does sufficient...
Jump to level 1 The mean voltage and standard deviation of 14 batteries from each manufacturer...
Jump to level 1 The mean voltage and standard deviation of 14 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 173 4 B 170 2 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 250 Does sufficient evidence exist to support the claim that the voltage of the batteries...
The mean voltage and standard deviation of 13 batteries from each manufacturer were measured. The results...
The mean voltage and standard deviation of 13 batteries from each manufacturer were measured. The results are summarized in the following table. 2 3 Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 131 1 B 127 4 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex 250 Does sufficient evidence exist to support the claim that the voltage of the batteries made by...
The mean voltage and standard deviation of 10 batteries from each manufacturer were measured. The results...
The mean voltage and standard deviation of 10 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 160 4 . В 158 2 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 250 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. Jump to level 1...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. Jump to level 1 An electrician wants to know whether batteries made by two manufacturers have significantly different voltages. The voltage of 130 batteries from each manufacturer were measured. The population standard deviations of the voltage for each manufacturer are known. The results are summarized in the following table. 3 Manufacturer Sample mean voltage (millivolts) Population standard deviati A 197 4 B 196 2 What type of hypothesis...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. Start An electrician wants...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. Start An electrician wants to know whether batteries made by two manufacturers have significantly different voltages. The voltage of 95 batteries from each manufacturer were measured. The population standard deviations of the voltage for each manufacturer are known. The results are summarized in the following table. D-D-D- 3 Manufacturer Sample mean voltage (millivolts) Population standard deviat A 125 5 B 124 3 What type of hypothesis test should...
plz answer correctly with all the steps 1 2004 Hypothesis test for 1 mean Page 406-413...
plz answer correctly with all the steps
1 2004 Hypothesis test for 1 mean Page 406-413 A fast food restaurant claims that the mean waiting time is less than 3.2 minutes (original claim). A random sample of 36 customers revealed a sample mean waiting time of 2.8 minutes with a sample standard deviation of 0.301 minutes. Test the restaurants claim at a a= 0.05 level of significance. Assume that the population has a normally distribution and the population standard deviation...
Jump to level 1 The mean voltage and standard deviation of 17 batteries from each manufacturer were measured. The results are summarized in the following table. 2 Manufacturer Sample mean voltage (millivolts) Sample standard deviatio А 171 B 169 3 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex 250 Does sufficient evidence exist to support the claim that the voltage of the batteries...
Jump to level 1 2 The mean voltage and standard deviation of 5 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio 3 А 126 5 B 119 4 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 0 What is the number of degrees of freedom? Ex: 259 Does sufficient evidence exist to support the claim that the voltage...
< Jump to level 1 The mean voltage and standard deviation of 7 batteries from each manufacturer were measured. The results are summarized in the following table. 2 3 Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 161 3 B 157 2 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 0 What is the number of degrees of freedom? Ex 250 Does sufficient evidence exist to support the claim that the...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. > Jump to level 1 The mean voltage and standard deviation of 5 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 167 B 164 3 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex 250 Does sufficient...
Jump to level 1 The mean voltage and standard deviation of 14 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 173 4 B 170 2 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 250 Does sufficient evidence exist to support the claim that the voltage of the batteries...
The mean voltage and standard deviation of 13 batteries from each manufacturer were measured. The results are summarized in the following table. 2 3 Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 131 1 B 127 4 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex 250 Does sufficient evidence exist to support the claim that the voltage of the batteries made by...
The mean voltage and standard deviation of 10 batteries from each manufacturer were measured. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Sample standard deviatio A 160 4 . В 158 2 What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 250 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. Jump to level 1 An electrician wants to know whether batteries made by two manufacturers have significantly different voltages. The voltage of 130 batteries from each manufacturer were measured. The population standard deviations of the voltage for each manufacturer are known. The results are summarized in the following table. 3 Manufacturer Sample mean voltage (millivolts) Population standard deviati A 197 4 B 196 2 What type of hypothesis...
CHALLENGE ACTIVITY 5.7.1: Hypothesis test for the difference between two population means. Start An electrician wants to know whether batteries made by two manufacturers have significantly different voltages. The voltage of 95 batteries from each manufacturer were measured. The population standard deviations of the voltage for each manufacturer are known. The results are summarized in the following table. D-D-D- 3 Manufacturer Sample mean voltage (millivolts) Population standard deviat A 125 5 B 124 3 What type of hypothesis test should...
plz answer correctly with all the steps
1 2004 Hypothesis test for 1 mean Page 406-413 A fast food restaurant claims that the mean waiting time is less than 3.2 minutes (original claim). A random sample of 36 customers revealed a sample mean waiting time of 2.8 minutes with a sample standard deviation of 0.301 minutes. Test the restaurants claim at a a= 0.05 level of significance. Assume that the population has a normally distribution and the population standard deviation...
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