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Fairfield Homes is developing two parcels near Pigeon Forge, Tennessee. In order to test different advertising...
Fairfield Homes is developing two parcels near Pigeon Forge, Tennessee. In order to test different advertising approaches, it uses different media to reach potential buyers. The mean annual family income for 15 people making inquiries at the first development is $150,000, with a standard deviation of $40,000. A corresponding sample of 25 people at the second development had a mean of $180,000, with a standard deviation of $30,000. Assume the population standard deviations are the same. At the 0.05 significance...
Fairfield Homes is developing two parcels near Pigeon Fork, Tennessee. In order to test different advertising...
Fairfield Homes is developing two parcels near Pigeon Fork, Tennessee. In order to test different advertising approaches, it uses different media to reach potential buyers. The mean annual family income for 12 people making inquiries at the first development is $153,000, with a standard deviation of $42,000. A corresponding sample of 24 people at the second development had a mean of $171,000, with a standard deviation of $30,000. Assume the population standard deviations are the same. 1. State the decision...
Consider the following hypotheses: H0 M = 130 HA A 130 The population is normally distributed...
Consider the following hypotheses: H0 M = 130 HA A 130 The population is normally distributed with a population standard deviation of 56. (You may find it useful to reference the appropriate table: z table or table) a-1. Calculate the value of the test statistic with 7 = 149 and n= 45. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic a-2. What is the conclusion at the 5% significance level?...
The American Water Works Association reports that the per capita water use in a single family...
The American Water Works Association reports that the per capita water use in a single family home is 66 gallons per day Legacy Ranch is a relatively new housing development. The builders installed more efficient water fixtures, such as low-flush toilets, and subsequently conducted a survey of the residences Twenty-two owners responded, and the sample mean water use per day was 61 gallons with a standard deviation of 78 gallons per day At the 005 level of significance, is that...
B- Compute the Test statistic x2= C- Find the P-Value Workers at a certain soda drink...
B- Compute the Test statistic
x2=
C- Find the P-Value
Workers at a certain soda drink factory collected data on the volumes (in ounces) of a simple random sample of 15 cans of the soda drink. Those volumes have a mean of 12.19 oz and a standard deviation of 0.11 oz, and they appear to be from a normally distributed population. If the workers want the filling process to work so that almost all cans have volumes between 12.01 oz...
The null and alternate hypotheses are: A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample...
The null and alternate hypotheses are: A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the 10 significance level, is tiere a difference in the population means? Note: Use the five-step hypothesis testing procedure for the following exercises. (a)This is a two...
Fairfield Homes is developing two parcels near Pigeon Forge, Tennessee. In order to test different advertising approaches, it uses different media to reach potential buyers. The mean annual family income for 15 people making inquiries at the first development is $150,000, with a standard deviation of $40,000. A corresponding sample of 25 people at the second development had a mean of $180,000, with a standard deviation of $30,000. Assume the population standard deviations are the same. At the 0.05 significance...
Consider the following hypotheses: H0 M = 130 HA A 130 The population is normally distributed with a population standard deviation of 56. (You may find it useful to reference the appropriate table: z table or table) a-1. Calculate the value of the test statistic with 7 = 149 and n= 45. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic a-2. What is the conclusion at the 5% significance level?...
The American Water Works Association reports that the per capita water use in a single family home is 66 gallons per day Legacy Ranch is a relatively new housing development. The builders installed more efficient water fixtures, such as low-flush toilets, and subsequently conducted a survey of the residences Twenty-two owners responded, and the sample mean water use per day was 61 gallons with a standard deviation of 78 gallons per day At the 005 level of significance, is that...
B- Compute the Test statistic
x2=
C- Find the P-Value
Workers at a certain soda drink factory collected data on the volumes (in ounces) of a simple random sample of 15 cans of the soda drink. Those volumes have a mean of 12.19 oz and a standard deviation of 0.11 oz, and they appear to be from a normally distributed population. If the workers want the filling process to work so that almost all cans have volumes between 12.01 oz...
The null and alternate hypotheses are: A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the 10 significance level, is tiere a difference in the population means? Note: Use the five-step hypothesis testing procedure for the following exercises. (a)This is a two...
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