I need help with a stats problem, section 7.2 and 7.3, please help with TI-84 commandsTest a claim that the mean amount of lead in the air in U.S. cities is less than0.037microgram per cubic meter. It was found that the mean amount of lead in the air for the random sample of55U.S. cities is0.039microgram per cubic meter and the standard deviation is0.067microgram per cubic meter. Atα=0.10,can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. Identify the claim and stateH0andHa. H0: ▼ sigma squaredσ2sigmaσppmuμ▼ greater thanless thanequals=greater than or equals≥not equals≠less than or equals≤enter your response hereHo: (1) ______________ (2) ________________ ( )Ha: (3)_______________ (4) _______________ ( )(1) is standard deviation, p, or mean(2) , =, greater than or = to(3) P, standard dev. squared, mean, or standard deviation(4) ,=, greater than or = to, not equal to, less than or = to The claim is the (5) ____________________ alternative or null hypothesis.(b) find the critical value(s) and identify the rejection region (s)The critical value(s) is/are to=__________________(use a comma to seperate answers as neede, round to 2 decimal places) graph which show the rejection region (c) find the standardized test statistic is t=________________round to 2 decimal places (d) decide whether to reject or fail to reject the null hypothesis.(6)_____________ Ho because the standardized test statistic (7) __________________ in the rejection region.(6)reject or fail to reject (7) is not or is (e) interpret the decision in the context of the orginal claim. There (8) ___________________ (is or is not) enough evidence at the ___________ % level of significance to (9) _____________ (support or reject) the claim that the mean amount of lead in the air in U.S. cities is (10) _____________ (equal, not equal, greater than, greater than or equal ) ( ) microgram percubic meter (type integers or decimals, do not round)

Question

I need help with a stats problem, section 7.2 and 7.3, please help with TI-84 commandsTest a claim that the mean amount of lead in the air in U.S. cities is less than0.037microgram per cubic meter. It was found that the mean amount of lead in the air for the random sample of55U.S. cities is0.039microgram per cubic meter and the standard deviation is0.067microgram per cubic meter. Atα=0.10,can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. Identify the claim and stateH0andHa. H0: ▼ sigma squaredσ2sigmaσppmuμ▼ greater than>less thanequals=greater than or equals≥not equals≠less than or equals≤enter your response hereHo: (1) ______________ (2) ________________ ( )Ha: (3)_______________ (4) _______________ ( )(1) is standard deviation, p, or mean(2) < ,>, =, greater than or = to(3) P, standard dev. squared, mean, or standard deviation(4) <,>,=, greater than or = to, not equal to, less than or = to The claim is the (5) ____________________ alternative or null hypothesis.(b) find the critical value(s) and identify the rejection region (s)The critical value(s) is/are to=__________________(use a comma to seperate answers as neede, round to 2 decimal places) graph which show the rejection region (c) find the standardized test statistic is t=________________round to 2 decimal places (d) decide whether to reject or fail to reject the null hypothesis.(6)_____________ Ho because the standardized test statistic (7) __________________ in the rejection region.(6)reject or fail to reject (7) is not or is (e) interpret the decision in the context of the orginal claim. There (8) ___________________ (is or is not) enough evidence at the ___________ % level of significance to (9) _____________ (support or reject) the claim that the mean amount of lead in the air in U.S. cities is (10) _____________ (equal, not equal, greater than, greater than or equal ) ( ) microgram percubic meter (type integers or decimals, do not round)

Accepted Answer

Population Mean
0.037

Sample Mean
0.039

Sample Size
55

Standard deviation
0.067

Critical…

H0:	▼ sigma squaredσ2 sigmaσ pp muμ ▼ greater than> less than< equals= greater than or equals≥ not equals≠ less than or equals≤ enter your response here
Ha:	▼ pp sigma squaredσ2 muμ sigmaσ ▼ less than< greater than> equals= greater than or equals≥ not equals≠ less than or equals≤ enter your response here